Internal combustion engine breather systems are one of the most misunderstood systems there is. So simple yet so damn mysterious to some. There is absolutely no harm done to any engine that simply vents to atmosphere.
A road draft tube works on a semi truck because the gases are being released at the crank case. A 7.3 has to have its crank case gases go out the valve cover that’s why vacume is needed from the turbo
@@alshegarfi7338 Again, this doesn't make any sense, if the the crankcase is pressurized and there is an indirect line to the ccv system through the valve cover the pressure will be the same in both locations. This is pretty basic, pressures in 2 vessels that have an open connection will passively equalize. It's the same reason the high pressure oil system has an equalizer line in the middle of the valley on a 7.3.
Usually this guy gives good advice but this time is no bueno...He even states "9 times out of 10 the leaky turbo stops after we re-route the PCV back to stock, I don't know why that is..." - then you shouldn't be commenting on it Bill. The only reason FoMoCo routes the PCV this way from the factory is for emissions. The small amount of vacuum is negligible at best in evacuation the crankcase and that 5/8" ID hose vented to atmosphere does a fine job. Not happy with that? Weld a bung in the exhaust and have it sucked out that way. Vented externally, you clean up the intercooler (increasing it's efficiency) and don't have oil seeping out all your charge pipe couplings, as well you're not caking up the backside of the intake valves (assuming you have an EGR delete done) and pistons by burning this condensate.
My truck has been perfectly fine with the ccv. It’s been on for years and my truck has never ran better. No leaks or anything. So thank god i am not taking your advice on this one.
Your a smart man so i dont want to argue with you so lets talk about crankcase vantalation going into the vains or fins of the turbo. The turbo is a finly machined instrument now your going to gum it all up with engine goo sticking to it. Then your going to mix contaminants with your perfictly clean fuel air mixture causing poor combustion and poor emisions to repiet its cicle of poor fuel mixture
My 2002 was stock with 175k miles, oil coming from all the pipes etc...I had no idea what was leaking and what wasn’t lol .. did CCV mod cleaned up the engine and fixed the found Leaks and seals and gaskets and hoses etc...
Not sure about a 6.0 but on a 7.3 the ccv mod causes no problems. In fact the International T444E (same engine as a 7.3 Powerstroke) used in commercial trucks has the crank case vented into the air.
Yeah but there's more benefits to having vacuum on the crank case vs no vaccum..vacuum... in race engines they make vacuum pumps specifically for sucking out crank case pressure and some claim it seals the rings better and creates better compression. Will you get that with manifold vacuum? Probabably not but there's no harm in running vacuum. Having pressure is more harmful so why risk it? A little oil consumption adds mpg anyways so why not?
@@kyleranderson1948 Your logic makes no sense man, if a system is pressurized and has access to a lower-pressure system it will equalize the pressures passively.
I did the this to my 99.5 PSD 7.3 10 years ago, With no problems! Ran the Hose all the way to the rear of the truck. My Intercooler is clean with no oil any were!! I now have 215 K on the truck with NO PROBLEMS!!
Thank you,i see now. I didn't think about the return line on the turbo.... Yes,the mod must be really restricitve,otherwise it would not leak. Mods on the pcv are a good thing,you can loose quite some heat exchange with a dirty oil coated intercooler....
I have always been impressed with your mechanic skills and your knowledge and I have enjoyed your videos, most of them are full of great information, until this one. my last truck was a fully deleted 6.0 and my family's company has 6 of them. I've done this mod on all of them, and I think it's an excellent mod. It keeps all the intake tubing dry and clean of oily and dirty debri. We I have always had a problem with oil seeping out around the tubing in various places and as soon as we did this delete we quit having an oily mess both inside the tubing and outside the tubing, how can that be bad? As as far as vacuum needed to suck that stuff out of the crankcase, that's BS there is plenty of pressure built inside the crankcase to relieve itself there's no need for vacuum or sucking of any kind to get the pressure and oil out of the crankcase. And if this is such a bad thing to do on diesels then explain to me, while right up until emission started to be a big deal to SOME, diesels all over the place vented out of a vent tube that dumped right out below the motor, they were all set up that way. The Cummins in the Dodge pickups dumped right out blow the motor up until mid 2007, all your tractors farm equipment big trucks forklifts and such all dumped out right below the motor straight out from the crankcase similar to the vent setup you have in your video and if it wasn't for the EPA and their bull crap and all the emission talk about the planet burning up, the crank vent tubes would still be dumped right out underneath the motor instead of recycled through the air intake.
i've heard that the ccv system on the 6.0 helps the rings to seal. I don't know if this is true or not but it has been said, that would explain the oil burn he is having in the video as well.
+Bobby Dob The piston rings? I doubt that, I guess anything is possible. But I don't see why the CCV system would be needed to help seal piston rings, most motors don't have this system and seal just fine. And like mentioned many times here, there are lots of diesels built NOT using this environmental crap ccv system. Belive me, it's not needed and having it is not going to save our planet.
You said increasing this crankcase ventilation puts stress on the turbo seals. I assume you mean the increased crankcase pressure? Which by the way I don't believe would be an increase or a problem at all. But my question is, how in the world would that pressure affect turbo seals? The turbo return oil drain? No way air pressure is traveling against returning oil. And no way there is such an increase in crankcase pressure just from leaving the ccv hose open to atmosphere. Unless it's plugged up or kinked, there will be no problem.
Wow - get a shovel cause this is getting deep. All venting the ccv to atmosphere does is keep your truck out of this guys shop. I think that is a fine idea.
Respectfully, I have to disagree with you. Sure,venting into the atmosphere is bad, but if you live in warmer/hotter, drier climates, the hotter air cannot pressurize as much, so the engine runs hotter. This increased heat and pressure results in excessive oil condensation. So, why is that bad? That means that, instead of your turbo reusing burped condensation to increase pressure, and properly vent separation gases via the exhaust, the crankcase is creating a negative vacuum situation. This will result in the case burping hot gases into the custom tube. Now, since we take the pressurization of the crankcase away, the pressurization reaches a stop, and so instead of feeding all of that hot air down a non-pressurized exhaust tube, the pressure comes to its exhaust point via the exhaust manifolds. This will result in bellowing white, burnt-oil-smelling exhaust from your tailpipe. These plumes of white smoke from the tailpipe will get thick, and allow you to breathe in the NOx; they will also dust all cars behind you as well. TL;DR: Don't reroute the crankcase into a negative pressure situation (to open air) on the 6.0 Powerstroke. It will completely obstruct power output, which will result in overheating, and much, much, MUCH higher oil condensation gas burping.
I would love to know how you could explain how all the turbo chargers since the beginning of time on diesels with crank case vent venting to the outside survived if this is what’s causing your turbo problems.
My 6.4 started blowing heavy white smoke as soon as I added the catch can to it. I checked everything under the hood out and it all led back to the ccv delete. I put it back to stock and took it for a test drive. All the white smoke stopped and the excessive blow by is now gone
Statements, and a Question! Statements: My coffee cup doesn't get sticky or weird, until sometime after I stop adding fresh coffee. If it were day one, I would vent my 7.3 to the atmosphere! However, right now (per my inspection of an intercooler pipe) what I have is Clean, Wet, Fresh oil... presumably throughout, the affected components, but at the very least, downstream of the turbo--which I'm okay with! If I stop refreshing it then, it will be moving toward Old, Dry, Dirty junk. Question: Am I crazy?
I understand what you're saying, but I have seen diesels that vent the crankcase right to the atmosphere, (i.e.: Cat C7's and DT466's), so how do they get away with it?
What about putting in an line catch can to collect some of the oil? That way you retain the vacuum from the turbo but maybe filter out some of the oil?
Got a little black smoke on a mild take off. Go to tuner roll back low presure fuel by 1. They are pre set to 3. So a setting of 2 should keep the black down just enough.
im haveing no problem I did my own bulletproof just sent my heads to my machine shop to do O rings and bronze valve guides I'm putting out 650 horsepower towing a bobcat everyday for three years now still no problem Bill did help me with alot of his knowledge thanks
Big facts the stock system will work fine on a stock truck but put custom cut pistons and set the rings for high boost and let me know how much oil runs through the turbo or intake this isn’t just for Diesel engines either
The problem I have with the CCV system is that the oil vapor mixes with the recirculated exhaust gases from the EGR and coats your intake. Makes for a gummy mess.
Yup and these new direct injection gas engines are known for clogged up intakes on the cylinder heads I hate EGR on Diesel engines it’s like running fine sand through it
I have my plumbed to my exhaust. Still creates a vacuum but no oil in the intake. Watch Anthony Youngblood from super duty service, he does it on all his builds.
bs on it blowing the turbo seals... older heavy duty trucks and off highway engines vent right into the atmosphere... the recirculation is purely for emissions
I had an 05 6.0 hat I vented to atmosphere and the hose got kinked making it white smoke profusely. I believe people restrict them too much sometimes when they vent them thus creating pressure inside the crankcase and thats why they smoke. Restricting a ccv will make them blow seals. Just got my second 6.0, a 2006, routed it to atmosphere using the stock fittings and a length of 1'' heater hose. No problems so far. Just don't choke it down and you'll be fine.
What about the 6.7 Powerstroke? I think the CCV is a major culprit in pushing out the upper oil pan seal. Causes to much pressure in the crankcase, and boom, you’re blowing out seals.
does the turbo require smoky blow by oil to stay alive. or the seals just give out cuz of the tad bit extra crankcase pressure that occurs when vented to catch can
I had a 7.3 I bought with a (massive blow by issue) when I looked at it got 3000 bucks off just to see The vent at the end of the hose under the frame was blocked with A OIL BREATHER FILTER CAKED AND CLOGGED WITH TRASH. Routed it back to the proper spot and wasn’t a problem I even noticed on intakes that most oil leaks start after cold air intakes are installed so when I bought my 7.3 excursion last week all I did was put a k and n repellent filter in the stock box.
CCV mod is very good. Just be sure to use at least a 1" diameter hose at a constant slope. This reminds me of the snake oil comment persons that railed against additive such as Arch oil and Revx. Come to find out those mechanics and followers of those mechanics comments, or as I like call them peanut gallery followers, couldn't have missed the boat more. Yes it cuts into profits of unneeded repairs and perfectly good solutions to not spend thousands of dollars plus extra down time towing etc. If doing any mod or using any additive, take the up front time to investigate why it works and how. We know using snake oils can work if the problem is fixable by that science. By using the thought of suction removes more blow by, then one would have to worry about to much suction. That could suck more fuel into the oil pan diluting our oil with fuel much quicker. I am not saying the EPA system to scrub the emissions does that. Of course we all know the EPA doesn't care if their approved systems ruin our engines faster or not. So if you do the CCV mod and it causes your engine to not vent properly, Then you have not done it correctly. Check hose size. 1" diameter works real well with my SCT tune on heavy tow and make sure it runs out at a constant slope with no kinks so it doesn't create a pool of build up oil clogging it. I also added Ia notched on the dump end in a forwards facing V. This does create suction with forwards movement. I learned that years ago while having some work done buy a shop working on my 379 Peterbilt by simply asking why the hose was that way from the factory and noticed other trucks not. If you still have problems after that you have another issue. Do it right or don't do it at all.
Please explain the physics behind a blown seal on the turbo shaft being caused by the Crank Case vented to the atmosphere versus a mild suction to the crank case. The pressurized oil system is sealed. The hot air, if you will, is still not pressurized because it vents out. The suction would only affect the gasses that get by the seals of the cylinders. Those gasses will get blown by regardless of a mild suction or venting to the atmosphere. What I will give you is the oil will get soot and other combustion particles contaminating it sooner, but that is negligible. I'm at 7,000+ miles since my last oil change and the oil still looks good and I have YET to add any. And yes, I have blow by. I actually have to replace my CAC boots soon. Oil residue is showing on them between the turbo and the cooler and at the turbo air intake. Stock truck. I've been driving semis since 2009. I've driven new ones with 23 miles on the odometer and ones with a million plus on them. Never had a turbo seal go out on ANY of them because they were venting to the atmosphere. Again. Explain to me the physics behind a sealed oiling system blowing out a seal SOLELY based on a CCV not having mild suction. It can, and WOULD, blow out from a OILING problem. Such as turning off a hit engine and turbo, thus coking the oil in the turbo. Gumming up things like the turbo oil drain tube. Which would cause over pressurized oil to the sesls in the turbo.
If this is true, then why does every VT365 I have worked on vent down by the bellhousing? How can an 06 dodge Cummins 5.9 vent to atmosphere "safely" but a 6.0 can't? every other diesel engine/manufacturer on the planet goes by the rule of , if there is oil in the CAC system, then something is wrong.
Because the crank case is being vented at the crank case. A 7.3 has to vent at the valve cover same without the 6.0. That’s why a vacume from the turbo is needed
As much as I love PSH videos, it's worth noting that the 7.3 was not a "Ford" motor. But you know that. If you haven't taken the time to look, look at some of the REAL 444E applications. DT444E from Australia, maybe in a BUS.. Real heavy GVW rigs.... Many have crank venting through a separator can & out behind the engine, or straight our down the bell housing... Any that DO vent into the intake are FIRST run through a air/oil separator can so IT DOESN'T FILL YOUR INTER COOLER WITH OIL ! A leaking turbo seal is just that, LEAKING! Just because applying vacuum stops the leak doesn't determine it was the CAUSE of the leak. Hell, maybe your blow bye is shooting your dip stick out, but when you hook up the CCV vacuum up, you just FIXED the blow bye ? Light neg vacuum can keep a slight leaking gasket from dripping, but there not related as cause & effect You will NOT build pressure in a crank case by venting wide open .. BTW, Aviation engines NEVER gulp filthy crank case gasses, they always vent to "atmosphere"
I did the ccv reroute on my 97 7.3 and it immediately went to smoking. It started to drip oil out the tale pipe. Put it back stock and stop smoking so in my case he's right.
a crankcase ventilation is used to prevent pressure build so your orings wont leak cause of pressure build up right? so if you disconnect how is it harming it if its still relieving the pressure air will flow in the path of less resistance right? so how would it have any bad effects to the orings if its still relieving the air by pressure?
the difference with mine is I have a catch can which catches the oil and I have no problem with the truck before I did this it was so much oil going through the pipes they used to slip or even changing new ones and new clamps with the proper torque
So with the mod you had about 653k? Sounds like something was working right. The mod has to be done right. If you had 1" hose v notch forwards then not a problem. You must be hauling heavy loads. That will eat turbos as it should be your weakest link before engine melt down. If you wear out seals you will first notice turbo weeping and then oil dieseling that can lead to run away. You should have looked into or you may now have a properly built turbo to get longevity while doing heavy to over demanding loads. Cheap rebuilt turbos abound and commonly fail during normal use. Therefore buying a new quality turbo especially if you make your living with it is best.
Please explain how the CCV has anything to do with the exhaust wheel on the Turbo?? What really happens is you need negative pressure in the crank case to help keep the oil control ring doing its job on the piston. You will have increased blow by which burns out the exhaust and goes out the turbo nothing to do with seals on the turbo.
Cause he's talking out his ass. "Pulls past the turbo" Like does he not realize there is oil being blasted between the intake and exhaust side anyways. and if there was a leak on the compressor side those seals would be leaking into the valley. Letting alone ignoring the oil that being pumped constantly into the center section.
the turbo is not sucking on the crankcase ventilation tube..so we are creating just a tad bit more crankcase pressure than normal so the seals in the turbo give up.
Bill, I love your videos! I'm going to diesel tech school right now, and every video I watch, I learn something new. I've been watching your channel since 2012 and I've learned a lot in that time. thank you so much and I look forward to watching them in the future. Hopefully I can get a 7.3 or 6.0 within the next year.
Guys- he cant and won't tell you to void the warranty or bypass the emissions on your Powerstroke. His job is getting your Powerstroke back on the road. Notice that I didn't say "fixing" your Powerstroke. If every Powerstroke Diesel was fixed and modified to run the best it can with all of the best mods then he would be out of a job. This video is laughable. You can almost hear him snickering that the CCV delete is a bad idea.
Incorrect. A rod draft tube works on a semi because crank case gases are vents at the crank case. A 7.3 had to vent at the valve cover. That is why a vacume, not engine vacume, from the turbo is needed. If u pay attention to the tubing for the turbo, the orface for the turbo is smaller and the orface towards the the filter is bigger. This is on purpose to create a Venturi affect.
Lets find a way to keep the turbo boots from blowing off then. Most people do the ccv mod because they are tired of the oil that soaks the boot.. so once someone invents a bullet proof boot upgrade we all would be very happy
You are right I would leave it stock in a diesel. The gassers with direct injection have issues. My buddy has a Mini which oil from his intercooler slosh into the combustion process, create unexpected combustion, and the sensors would detect irregularities and throw him into limp mode. He added a ccv oil catch can to catch the oil, but the gasses still fed into the turbo. He empties the can about every 10k, so far with 30k on the mod, hes been problem free. My guess, is this is crossing over to the diesel side where it isn't as necessary.
Mike S Inspect the boots and replace if they are stretched or limber. Also be sure to completely remove all trace of oils from inside the boots and the mating surfaces on the tubes. Do this and you will not have a problem.
Plus in the great salt belt when winter comes around the moisture in the CCV will freeze and can block the line up. That'll blow out all the seals in the motor in a hurry.
I believe that the international VT365 engine is vented to the atmosphere not the intake. Only thing different is emissions on different truck classes.
@powerstrokehelp Bill, you mentioned you weren't sure why hooking up the Crank Case Ventilation system to the turbo intake fixes the oil leak. The answer is physics! By creating a slight vacuum on the crank side of an engine, air is drawn into any small crevices to equalize the vacuum. With the air being drawn in, the oil isn't allowed to leak out. Without a vacuum, the oil is free to leak out of any seal that cannot hold back the pressure Fun fact for ya
i have to say i did ccv delete on 6.7 cummins. it runs awsome just straight draft tube. i do think the delete kits with small 2 inch filter on end are bad idea because if they get plugged then pressure will build in crankcrase. but my truck has been running great with just a hose to atmosphere
this guy don't know what's he's talking about 🤣 like venting ccv to atmosphere would ruin the turbo?!! like who would have thought 😂😂😂😂😂😂 I've been venting the ccv to atmosphere for over a year now without any problems lol
pulling a vacuum on the crankcase will increase ring seal and free up HP... the ticket is (especially gas vehicles) is to evacuate to an free flowing exhaust... not as good as pulling a vacuum with a pump, but better than the octane lowering oil entering the intake.
All I know is I did this mod along with adding a bypass oil filter and changing out all of my fluids. Within 2 hours of running, I was leaving a cloud of white smoke behind me everywhere. I was freaking out, thinking that I had a bad injector. Then I watched this video and returned my CCV to stock and it is smoke free and running like a champ! Thanks Bill!
Just gonna throw out the fact that big rigs vent crankcase to atmosphere. Look under any big rig, they have a hose that usually hangs under the front axle.
Didn't think of that. So, you mean fuel in the crank case would feed back through the CCV, through the turbo, and keep feeding the engine. Interesting.
I just bought a 2012 with a 6.7 and at idle I would smoke a inter section out with white smoke. This is after a full delete on the exhaust. I put the by pass on and found the previous owner had 3 gallons of oil in it. I drained it all and put the required 13 Qts in. Now I get some minor white smoke from the bypass. Plus the CCV was causing oil all under the hood and engine bay.
I’m here to tell you very little oil is exiting the CCV box. At 219,000m, my 11, 6.7, f250 doesn’t use a drop of oil between changes. I replace the CCV box every 50,000m but unaware if there is a recommended change interval. I think someone once told me that, but not certain? If anyone knows the answer please comment. I don’t see any need to delete the CCV box. What is the gain? It doesn’t fail, you don’t get additional fuel mileage. What is the upside? I’m 70 and for the most part have always erred on the side of original engineering. I’m not qualified to anticipate unintended consequences of alterations, especially the complex diesels today.
Oil doesn’t plug it up. The motor burns it. A road draft tube works on a semi because it vents at the crank case. A 7.3 had to vent at the valve cover, which is why the CCV mode doesn’t work on a 7.3. Ethier leave it alone or put a catch can setup that adds to the existing desighn.
I bought a 2000 School bus with a T-444E(190 HP) in it, that has a RACOR device on top where the CCV hose comes out.. from this RACOR there is a hose going to the Intake Past the Intasle air filter and Before the Turbo, are you familiar with this deivce? or should I take it off and replace it with a stock CCV hose? Ive not seen one of these on a bus or sure what its purpose is.. although I do know it leaks oil around the base of it so ive got to take it apart and see whats leaking in that RACOR..
i loved this video. you should do another one entitled, "dumb shit customers do to their trucks." Or start another channel of daily rants, you can record them when you're test driving trucks!
On my 95 7.3 the blow by pushes up my dipstick. But my motors only has 136000mile and it runs great so I'm pretty sure my crank case ventilation is clogged or something but I don't really know anything about it so I don't know how to check it
I keep waiting for one of yall to point out one obvious fact about the modern diesels and why the old diesel designs could be vented to atmosphere and the new ones cant. HINT: this reason is not emissions related. Is anybody listening? Houston can you hear me?
Yes thank you. The older detroits ETC never turned the RPM of a 6.0 or 6.4 therefore you could get away with the vent to atmosphere. 2500+ rpms make huge pressure in the crankcase and the turbo seals get pressurized on the drain back, oil is being pushed from the other direction and the weakest link fails.... the turbo seal. Gold star for Tyler.
I love this! All these people who think this video is foolish..... where are you? Look Im not a mechanic but I pay attention to your information and read everything I can get my hands on so I can preserve and maintain my truck. What I do know and understand is that you cannot compare Ford diesel to any other diesel. I saw alot of people comparing to Detroit and Cummins. Apples n oranges! Great video! They can come to you when they f@ck their shit up and spend money!
I have 50,000 mi on my 03' 6.0 Powerstroke CCV mod. A total of 160,000 mi. Mostly towing my 13,000 lbs 5er. Original turbo and injectors working flawless with SCT tow tune stage 2, Bulletproof diesel oil cooler coolant cool delete front relocation air cooled, Bulletproof EGR upgrade, the 97' 7.3 Powerstroke manual clutch fan nut/bolt adapter with the heavy duty manual clutch fan and the coolant filter regulated by a Mitsimoto thermostat. It does have the EGR hole plug but can be popped out and EGR valve popped in at 10 min of work. I live in California so smog is an issue every 2 years. Stock everything exhaust. I have to mention that some individuals have CCV modded without addressing a down slope constant. If it has a droop that will catch oil build up, You will have blockage. This will cause crank case over pressure and can defiantly damage your turbo etc. The first sign is smoky exhaust then turbo seal leakages. If the CCV mod is working properly then you will notice smoke from the tube. Sitting at the fast food window can piss off the cashier getting CCV smoke in their faces. Another problem in California (or any super green state) could be a CHP next to you at a stop light and having CCV smoke blowing between you. This happened to me coming back from Reno going thru Susansville California once. Luckily he didn't notice. Pay off for me? No more slick turbo boots blowing off and my 7000 mi oil change still has some translucency to it. My oil used to be black by 4000 miles. I am not a certified mechanic. I have a lot of experience as a owner operator for 20 years doing my own work and do agree that the large engines are some what different. I did mange to run a Detroit 60 series in my 95' Pete for 1.2 million miles with the exception of only getting 800,000 miles out of the turbo everything else was untouched.
Bill, Can you please comment on using an oil catch can in this situation? Of course it would have to be properly sized and unrestricted... Would love to hear you comment on this as a compromise.
I guess the vacuum in the crankcase does a pretty good job at the turbo. It sucks at the chargers drain line and reduces effective oil pressure at the turbocharger bearings. Positive pressure in case of bad ventilation would be really bad and even increase the pressure there.
If your talking about the 7.3 it does. On the air filter piping that's rubber theres a fitting that fits up with your ccv on the valve cover. Then the gases get sucked into the turbo.
Um, crankcases that vented to atmosphere were used for years and are fine; when a pressurized gas, such as that from crankcase blow-by, is permitted to vent to atmosphere it quickly does so. Positive Crankcase Ventilation (PCV) does draw cylinder blow-by from the crankcase via intake draw vacuum to burn it via the intake air charge, but typically PCV systems have a check valve, a one-way valve that prevents pressurized air from returning to the crankcase. Regarding the exhaust side of the turbo, you're suggesting the blow-by airflow from the crankcase via the PCV introduced to the intake side effects turbo pressure and keeps turbo seals from blowing on the exhaust side? First, intake air is readily available to the turbo via the air intake system, and the turbp doesn't care where its air comes from; second, the PCV check valve prevents somehow pressurized intake air from returning to pressurize the crankcase. I think you're full of prunes on this one.
Cat,Detroit,Cummins are all vented to the ground. I really don't understand why Navstar chose to do this other than emissions laws. Not that I would want all the blow by under my pickup, I see no benefit from rerouting the CVS from how Navstar designed this back in the turbo. It tends to be quite messy under trucks with the crankcase vented to the ground.
Steve, that's just not true. This mod does not make an oily mess under the truck. I've only seen this issue when there is major engine ware and there is excessive amounts of oil going past the piston rings. But on normal engine operation there isn't and should not be enough oil coming out of that vent to cause an oily mess under the truck. Also a lot of folks that do this mod run the hose all the way to the back bumper and down. that will keep everything clean under the truck, which usually isn't an issue. Again most diesels came stock this way (vented right below the motor) until all this BS emission stuff started going around. All this man made global warming stuff is BS.
But navistar fucked up bad on vemting back to the inlet of the turbo. The systems were failing and some trucks had blown head gaskets because of it. Excessive oil in the intake, like fuckin puddles of oil. There fix. Clean the CAC and intake. Change the centrifugal filter and vent it straight to the ground. Just like 7.3 idi, the cdr valve cause most od the head gasket issues. Oil in the intake causes hot spots in the cylinders and obviously blows head gaskets, destroys valves, valve seals, valve guides, ect. I deleted mine after replacing heads and exhaust temps dropped 50 to 100 degrees
Hi I have question I have 2002 f550 CRANKCASE VENTILATION is liking oil on the litle pipe gon to de air filter and turbo I see litle oil on the turbo the pipe from air filter to the turbo I see oil I have to change CRANKCASE VENTILATION filter because went the truck needs power the truck lost power and smoking inside the cabin or on the air conditioner the temperature is ok oil thanks
I just bought my first diesel. 1996 F250 7.3. I thought I had a really bad engine leak cuz smoke was coming out underneath my driver side. I follow a hose up that's just blowing out smoke and it appears to be this ventilation on top of the valve cover. The owner put a d66 turbo on the engine. Don't know if that's an upgrade or replacement. Is there a place to plug this hose into that style of Turbo? I really don't want to suck fumes all day
Mine is stock. Just saw I have some blowby with a little bit of puffing pressure. Is that normal? Doesn’t blow oil cap off but just a couple months ago I had none.
Hi, (1999.5 7.3L) My Turbo Pedestal Small O-ring fell into the Hole next to it while upgrades.. I was distracted and I saw it fall in to the return hole. What should I do? Any help please :( I used an endoscope and nothing..
I got NO TURBO; what happens if I disconnect the crankcase breather on my V6 from intake housing and let it hang downwards on its own.( but I plug up the air intake housing hole).. will it affect the engine?
I have a 2004 6.0 and I have an excessive amount of oil in the tubes as well as pooling on top of the engine,so much it is coming out on to the hood.I can't see where the leak is coming from. The engine runs fine. Advice?
so i need some help figuring something out. im looking at some box body ford diesel trucks within the years of 1990 and 2000. im not looking for something for pulling im more of looking to make a drag racing truck. im gonna get a 7.3, i know alot about power strokes but honestly i really dont know much about the IDI diesels. so im just trying to figure out what would be a better pick for me, the 7.3 powerstroker or 7.3 IDI. i want something that will have alot of parts options online and i dont wanna be constantly repairing small parts on the engine.
I hate to tell all you guys but I did the CCV mod on a 7.3 with a brand new turbo. Any restriction in that CCV mod will make Oil come out of the exhaust housing of the turbo. ( happened to me. Had an oil catch can on there. ) There isn't a so call rubber Oring but its called " turbo piston ring" its the metal ring on the shaft you replace when you rebuild them. Now having said all that I have vented the ccv straight to atmosphere and not had the same issue.
Bill, do you consider it a bad idea to do the CCV reroute on the 6.7 powerstroke engine as well? Just wondering as I'm considering doing it but really don't want to deal with these issues if this is the case on the 6.7.
hi Bill I have this modification on my truck however mine is more like a catch can that I can drain it's still hooked back to the intake pipe do you think this would be ok or should I do it with my catch can
I saw a test on an engine where they tried several variations of a ccv system and the engine made the last power with no ccv system. Better with a vacuum system and made the most power with a belt driven vacuum pump. Even with the load of the pump, the horsepower was still higher. Keep giving the good advice.
Thanks for da info, wasn't really sure if I needed to do that but now I'm gonna leave it as factory, got any advice on EGR delete, dealers ask if mine is deleted, does it really help & any downside to this
I would like to see a follow up video of after you returned the ccv to stock and see if the smoke went away
Internal combustion engine breather systems are one of the most misunderstood systems there is. So simple yet so damn mysterious to some. There is absolutely no harm done to any engine that simply vents to atmosphere.
A road draft tube works on a semi truck because the gases are being released at the crank case. A 7.3 has to have its crank case gases go out the valve cover that’s why vacume is needed from the turbo
@@alshegarfi7338 Again, this doesn't make any sense, if the the crankcase is pressurized and there is an indirect line to the ccv system through the valve cover the pressure will be the same in both locations. This is pretty basic, pressures in 2 vessels that have an open connection will passively equalize. It's the same reason the high pressure oil system has an equalizer line in the middle of the valley on a 7.3.
Usually this guy gives good advice but this time is no bueno...He even states "9 times out of 10 the leaky turbo stops after we re-route the PCV back to stock, I don't know why that is..." - then you shouldn't be commenting on it Bill. The only reason FoMoCo routes the PCV this way from the factory is for emissions. The small amount of vacuum is negligible at best in evacuation the crankcase and that 5/8" ID hose vented to atmosphere does a fine job. Not happy with that? Weld a bung in the exhaust and have it sucked out that way. Vented externally, you clean up the intercooler (increasing it's efficiency) and don't have oil seeping out all your charge pipe couplings, as well you're not caking up the backside of the intake valves (assuming you have an EGR delete done) and pistons by burning this condensate.
Thanks for the sanity in thinking...which this guy not have!
clys69 venting to the atmosphere is better. Oil getting on the compressor wheel can throw it off balance.
My truck has been perfectly fine with the ccv. It’s been on for years and my truck has never ran better. No leaks or anything. So thank god i am not taking your advice on this one.
maybe the crankcase ventilation was connected to the exhust pipe that is why it was smoking ...
Your a smart man so i dont want to argue with you so lets talk about crankcase vantalation going into the vains or fins of the turbo. The turbo is a finly machined instrument now your going to gum it all up with engine goo sticking to it. Then your going to mix contaminants with your perfictly clean fuel air mixture causing poor combustion and poor emisions to repiet its cicle of poor fuel mixture
If CCV is helping your turbo not leak past the seals, your turbo is already fucked
just think how much oil pukes out into the intercooler anybody drained one or is there no drain ?
My 2002 was stock with 175k miles, oil coming from all the pipes etc...I had no idea what was leaking and what wasn’t lol .. did CCV mod cleaned up the engine and fixed the found Leaks and seals and gaskets and hoses etc...
Not sure about a 6.0 but on a 7.3 the ccv mod causes no problems. In fact the International T444E (same engine as a 7.3 Powerstroke) used in commercial trucks has the crank case vented into the air.
Yeah but there's more benefits to having vacuum on the crank case vs no vaccum..vacuum... in race engines they make vacuum pumps specifically for sucking out crank case pressure and some claim it seals the rings better and creates better compression. Will you get that with manifold vacuum? Probabably not but there's no harm in running vacuum. Having pressure is more harmful so why risk it? A little oil consumption adds mpg anyways so why not?
He specifically mentioned a difference from the older trucks to the new trucks. Older trucks sure, newer trucks? I'd take Bills advice.
@@kyleranderson1948 Your logic makes no sense man, if a system is pressurized and has access to a lower-pressure system it will equalize the pressures passively.
yes they come that way from the factory...so tell international theyre idiots and dont know what they are doing
I did the this to my 99.5 PSD 7.3 10 years ago, With no problems! Ran the Hose all the way to the rear of the truck. My Intercooler is clean with no oil any were!! I now have 215 K on the truck with NO PROBLEMS!!
I have to say i don't understand why it would make the turbo seals to leak.
Thank you,i see now.
I didn't think about the return line on the turbo....
Yes,the mod must be really restricitve,otherwise it would not leak.
Mods on the pcv are a good thing,you can loose quite some heat exchange with a dirty oil coated intercooler....
I have always been impressed with your mechanic skills and your knowledge and I have enjoyed your videos, most of them are full of great information, until this one.
my last truck was a fully deleted 6.0 and my family's company has 6 of them. I've done this mod on all of them, and I think it's an excellent mod. It keeps all the intake tubing dry and clean of oily and dirty debri. We I have always had a problem with oil seeping out around the tubing in various places and as soon as we did this delete we quit having an oily mess both inside the tubing and outside the tubing, how can that be bad? As as far as vacuum needed to suck that stuff out of the crankcase, that's BS there is plenty of pressure built inside the crankcase to relieve itself there's no need for vacuum or sucking of any kind to get the pressure and oil out of the crankcase. And if this is such a bad thing to do on diesels then explain to me, while right up until emission started to be a big deal to SOME, diesels all over the place vented out of a vent tube that dumped right out below the motor, they were all set up that way. The Cummins in the Dodge pickups dumped right out blow the motor up until mid 2007, all your tractors farm equipment big trucks forklifts and such all dumped out right below the motor straight out from the crankcase similar to the vent setup you have in your video and if it wasn't for the EPA and their bull crap and all the emission talk about the planet burning up, the crank vent tubes would still be dumped right out underneath the motor instead of recycled through the air intake.
preach!!
He doesn't have to explain anything cause he just did in the video. text each their own
I have to say i don't understand why it would make the turbo seals to leak.
Can you explain why he said that ?
i've heard that the ccv system on the 6.0 helps the rings to seal. I don't know if this is true or not but it has been said, that would explain the oil burn he is having in the video as well.
+Bobby Dob The piston rings? I doubt that, I guess anything is possible. But I don't see why the CCV system would be needed to help seal piston rings, most motors don't have this system and seal just fine.
And like mentioned many times here, there are lots of diesels built NOT using this environmental crap ccv system. Belive me, it's not needed and having it is not going to save our planet.
You said increasing this crankcase ventilation puts stress on the turbo seals. I assume you mean the increased crankcase pressure? Which by the way I don't believe would be an increase or a problem at all. But my question is, how in the world would that pressure affect turbo seals? The turbo return oil drain? No way air pressure is traveling against returning oil. And no way there is such an increase in crankcase pressure just from leaving the ccv hose open to atmosphere. Unless it's plugged up or kinked, there will be no problem.
Wow - get a shovel cause this is getting deep. All venting the ccv to atmosphere does is keep your truck out of this guys shop. I think that is a fine idea.
Respectfully, I have to disagree with you.
Sure,venting into the atmosphere is bad, but if you live in warmer/hotter, drier climates, the hotter air cannot pressurize as much, so the engine runs hotter. This increased heat and pressure results in excessive oil condensation. So, why is that bad? That means that, instead of your turbo reusing burped condensation to increase pressure, and properly vent separation gases via the exhaust, the crankcase is creating a negative vacuum situation. This will result in the case burping hot gases into the custom tube.
Now, since we take the pressurization of the crankcase away, the pressurization reaches a stop, and so instead of feeding all of that hot air down a non-pressurized exhaust tube, the pressure comes to its exhaust point via the exhaust manifolds. This will result in bellowing white, burnt-oil-smelling exhaust from your tailpipe. These plumes of white smoke from the tailpipe will get thick, and allow you to breathe in the NOx; they will also dust all cars behind you as well.
TL;DR: Don't reroute the crankcase into a negative pressure situation (to open air) on the 6.0 Powerstroke. It will completely obstruct power output, which will result in overheating, and much, much, MUCH higher oil condensation gas burping.
I would love to know how you could explain how all the turbo chargers since the beginning of time on diesels with crank case vent venting to the outside survived if this is what’s causing your turbo problems.
I got mine from Riff Raff 4 years ago put on my 2002 7.3 250 no problems at all put at least 40k on it. But i did to a catch can
My 6.4 started blowing heavy white smoke as soon as I added the catch can to it. I checked everything under the hood out and it all led back to the ccv delete. I put it back to stock and took it for a test drive. All the white smoke stopped and the excessive blow by is now gone
Statements, and a Question!
Statements:
My coffee cup doesn't get sticky or weird, until sometime after I stop adding fresh coffee.
If it were day one, I would vent my 7.3 to the atmosphere!
However, right now (per my inspection of an intercooler pipe) what I have is Clean, Wet, Fresh oil...
presumably throughout, the affected components, but at the very least, downstream of the turbo--which I'm okay with!
If I stop refreshing it then, it will be moving toward Old, Dry, Dirty junk.
Question:
Am I crazy?
I understand what you're saying, but I have seen diesels that vent the crankcase right to the atmosphere, (i.e.: Cat C7's and DT466's), so how do they get away with it?
What about putting in an line catch can to collect some of the oil? That way you retain the vacuum from the turbo but maybe filter out some of the oil?
Got a little black smoke on a mild take off. Go to tuner roll back low presure fuel by 1. They are pre set to 3. So a setting of 2 should keep the black down just enough.
im haveing no problem I did my own bulletproof just sent my heads to my machine shop to do O rings and bronze valve guides I'm putting out 650 horsepower towing a bobcat everyday for three years now still no problem Bill did help me with alot of his knowledge thanks
2 words that may help remedy the problem, "Catch Can" 👍
Big facts the stock system will work fine on a stock truck but put custom cut pistons and set the rings for high boost and let me know how much oil runs through the turbo or intake this isn’t just for Diesel engines either
The problem I have with the CCV system is that the oil vapor mixes with the recirculated exhaust gases from the EGR and coats your intake. Makes for a gummy mess.
Yup and these new direct injection gas engines are known for clogged up intakes on the cylinder heads I hate EGR on Diesel engines it’s like running fine sand through it
Agreed, egr delete if you can..
I don't have an egr
Hearing a Powerstroke rev like that makes my pants tight.
I have my plumbed to my exhaust. Still creates a vacuum but no oil in the intake. Watch Anthony Youngblood from super duty service, he does it on all his builds.
bs on it blowing the turbo seals... older heavy duty trucks and off highway engines vent right into the atmosphere... the recirculation is purely for emissions
What about the kits with the bung welded into the exhaust would that not create vacuum
I had an 05 6.0 hat I vented to atmosphere and the hose got kinked making it white smoke profusely. I believe people restrict them too much sometimes when they vent them thus creating pressure inside the crankcase and thats why they smoke. Restricting a ccv will make them blow seals. Just got my second 6.0, a 2006, routed it to atmosphere using the stock fittings and a length of 1'' heater hose. No problems so far. Just don't choke it down and you'll be fine.
What about the 6.7 Powerstroke? I think the CCV is a major culprit in pushing out the upper oil pan seal. Causes to much pressure in the crankcase, and boom, you’re blowing out seals.
to clarify: it is a clogged CCV filter causing the problem, not the CCV (or CCV filter) itself.
does the turbo require smoky blow by oil to stay alive. or the seals just give out cuz of the tad bit extra crankcase pressure that occurs when vented to catch can
I had a 7.3 I bought with a (massive blow by issue) when I looked at it got 3000 bucks off just to see The vent at the end of the hose under the frame was blocked with A OIL BREATHER FILTER CAKED AND CLOGGED WITH TRASH. Routed it back to the proper spot and wasn’t a problem I even noticed on intakes that most oil leaks start after cold air intakes are installed so when I bought my 7.3 excursion last week all I did was put a k and n repellent filter in the stock box.
CCV mod is very good. Just be sure to use at least a 1" diameter hose at a constant slope. This reminds me of the snake oil comment persons that railed against additive such as Arch oil and Revx. Come to find out those mechanics and followers of those mechanics comments, or as I like call them peanut gallery followers, couldn't have missed the boat more. Yes it cuts into profits of unneeded repairs and perfectly good solutions to not spend thousands of dollars plus extra down time towing etc.
If doing any mod or using any additive, take the up front time to investigate why it works and how. We know using snake oils can work if the problem is fixable by that science. By using the thought of suction removes more blow by, then one would have to worry about to much suction. That could suck more fuel into the oil pan diluting our oil with fuel much quicker. I am not saying the EPA system to scrub the emissions does that. Of course we all know the EPA doesn't care if their approved systems ruin our engines faster or not.
So if you do the CCV mod and it causes your engine to not vent properly, Then you have not done it correctly. Check hose size. 1" diameter works real well with my SCT tune on heavy tow and make sure it runs out at a constant slope with no kinks so it doesn't create a pool of build up oil clogging it. I also added Ia notched on the dump end in a forwards facing V. This does create suction with forwards movement. I learned that years ago while having some work done buy a shop working on my 379 Peterbilt by simply asking why the hose was that way from the factory and noticed other trucks not. If you still have problems after that you have another issue. Do it right or don't do it at all.
Would love to see a picture after the install and part#.
This theory makes no sense everything piece of equipment I've seen vents crank case vapors to atmosphere. Never hurt a turbo
Take a 6.7 CCV filter out and pick the material apart. I doubt it's actually relieving pressure in stock form either.
Please explain the physics behind a blown seal on the turbo shaft being caused by the Crank Case vented to the atmosphere versus a mild suction to the crank case. The pressurized oil system is sealed. The hot air, if you will, is still not pressurized because it vents out. The suction would only affect the gasses that get by the seals of the cylinders. Those gasses will get blown by regardless of a mild suction or venting to the atmosphere. What I will give you is the oil will get soot and other combustion particles contaminating it sooner, but that is negligible. I'm at 7,000+ miles since my last oil change and the oil still looks good and I have YET to add any. And yes, I have blow by. I actually have to replace my CAC boots soon. Oil residue is showing on them between the turbo and the cooler and at the turbo air intake. Stock truck. I've been driving semis since 2009. I've driven new ones with 23 miles on the odometer and ones with a million plus on them. Never had a turbo seal go out on ANY of them because they were venting to the atmosphere.
Again. Explain to me the physics behind a sealed oiling system blowing out a seal SOLELY based on a CCV not having mild suction. It can, and WOULD, blow out from a OILING problem. Such as turning off a hit engine and turbo, thus coking the oil in the turbo. Gumming up things like the turbo oil drain tube. Which would cause over pressurized oil to the sesls in the turbo.
If this is true, then why does every VT365 I have worked on vent down by the bellhousing? How can an 06 dodge Cummins 5.9 vent to atmosphere "safely" but a 6.0 can't? every other diesel engine/manufacturer on the planet goes by the rule of , if there is oil in the CAC system, then something is wrong.
Because the crank case is being vented at the crank case. A 7.3 has to vent at the valve cover same without the 6.0. That’s why a vacume from the turbo is needed
As much as I love PSH videos, it's worth noting that the 7.3 was not a "Ford" motor. But you know that. If you haven't taken the time to look, look at some of the REAL 444E applications. DT444E from Australia, maybe in a BUS.. Real heavy GVW rigs.... Many have crank venting through a separator can & out behind the engine, or straight our down the bell housing... Any that DO vent into the intake are FIRST run through a air/oil separator can so IT DOESN'T FILL YOUR INTER COOLER WITH OIL ! A leaking turbo seal is just that, LEAKING! Just because applying vacuum stops the leak doesn't determine it was the CAUSE of the leak. Hell, maybe your blow bye is shooting your dip stick out, but when you hook up the CCV vacuum up, you just FIXED the blow bye ? Light neg vacuum can keep a slight leaking gasket from dripping, but there not related as cause & effect You will NOT build pressure in a crank case by venting wide open .. BTW, Aviation engines NEVER gulp filthy crank case gasses, they always vent to "atmosphere"
Some of us live long enough to realize the manufacturer does know some about what they build.
Oh ya, like building the 6.0 and 6.4? Ya they really knew what they were doing, didn't they! another idoit!
What part of some did you not understand, Curtis?
Alex Rolli Obviously in this little debate, some, would mean the CCV mod is a good idea. NOT, a good design. Just like the 6.0 and 6.4.
I did the ccv reroute on my 97 7.3 and it immediately went to smoking. It started to drip oil out the tale pipe. Put it back stock and stop smoking so in my case he's right.
how would that cause the turbo seals to fail?
a crankcase ventilation is used to prevent pressure build so your orings wont leak cause of pressure build up right? so if you disconnect how is it harming it if its still relieving the pressure air will flow in the path of less resistance right? so how would it have any bad effects to the orings if its still relieving the air by pressure?
Because the vacuum from the turbo relieves the crankcase pressure more quickly.
Just wondered if these CCV re route kits were a good idea.
the difference with mine is I have a catch can which catches the oil and I have no problem with the truck before I did this it was so much oil going through the pipes they used to slip or even changing new ones and new clamps with the proper torque
Same. My boots were always soaked.
So with the mod you had about 653k? Sounds like something was working right. The mod has to be done right. If you had 1" hose v notch forwards then not a problem. You must be hauling heavy loads. That will eat turbos as it should be your weakest link before engine melt down. If you wear out seals you will first notice turbo weeping and then oil dieseling that can lead to run away. You should have looked into or you may now have a properly built turbo to get longevity while doing heavy to over demanding loads. Cheap rebuilt turbos abound and commonly fail during normal use. Therefore buying a new quality turbo especially if you make your living with it is best.
Please explain how the CCV has anything to do with the exhaust wheel on the Turbo?? What really happens is you need negative pressure in the crank case to help keep the oil control ring doing its job on the piston. You will have increased blow by which burns out the exhaust and goes out the turbo nothing to do with seals on the turbo.
Cause he's talking out his ass. "Pulls past the turbo" Like does he not realize there is oil being blasted between the intake and exhaust side anyways. and if there was a leak on the compressor side those seals would be leaking into the valley. Letting alone ignoring the oil that being pumped constantly into the center section.
I totally agree. A catch can is a way better idea. Use them on ls1 and ls3 all the time.
because how else would he get paid
the turbo is not sucking on the crankcase ventilation tube..so we are creating just a tad bit more crankcase pressure than normal so the seals in the turbo give up.
Bill, I love your videos! I'm going to diesel tech school right now, and every video I watch, I learn something new. I've been watching your channel since 2012 and I've learned a lot in that time. thank you so much and I look forward to watching them in the future. Hopefully I can get a 7.3 or 6.0 within the next year.
u should learn in school every other 7.3 is vented into the air and its perfectly fine and no heavy loaded up intercooler
Guys- he cant and won't tell you to void the warranty or bypass the emissions on your Powerstroke. His job is getting your Powerstroke back on the road. Notice that I didn't say "fixing" your Powerstroke.
If every Powerstroke Diesel was fixed and modified to run the best it can with all of the best mods then he would be out of a job.
This video is laughable. You can almost hear him snickering that the CCV delete is a bad idea.
Incorrect. A rod draft tube works on a semi because crank case gases are vents at the crank case. A 7.3 had to vent at the valve cover. That is why a vacume, not engine vacume, from the turbo is needed. If u pay attention to the tubing for the turbo, the orface for the turbo is smaller and the orface towards the the filter is bigger. This is on purpose to create a Venturi affect.
Question if you removed it replaced it with a catch can and left it plumbed the same way what do you think
Lets find a way to keep the turbo boots from blowing off then. Most people do the ccv mod because they are tired of the oil that soaks the boot.. so once someone invents a bullet proof boot upgrade we all would be very happy
Stupidity could end up with you having to hire more people to handle more work.
You are right I would leave it stock in a diesel. The gassers with direct injection have issues. My buddy has a Mini which oil from his intercooler slosh into the combustion process, create unexpected combustion, and the sensors would detect irregularities and throw him into limp mode. He added a ccv oil catch can to catch the oil, but the gasses still fed into the turbo. He empties the can about every 10k, so far with 30k on the mod, hes been problem free. My guess, is this is crossing over to the diesel side where it isn't as necessary.
So what would you guys suggest we do if we are having problems with cac hoses popping off? I feel it's related to the oil in the intake system
Mike S
Inspect the boots and replace if they are stretched or limber. Also be sure to completely remove all trace of oils from inside the boots and the mating surfaces on the tubes. Do this and you will not have a problem.
Bill, why would you need to replace the turbo if the seals blow? New seals come with every single rebuild kit.
tobysoter Im sure bill does.
tobysoter I TALK BACK TO YOUR MOTHER!
tobysoter Good, i can still vote for trump lol...
Plus in the great salt belt when winter comes around the moisture in the CCV will freeze and can block the line up. That'll blow out all the seals in the motor in a hurry.
I believe that the international VT365 engine is vented to the atmosphere not the intake. Only thing different is emissions on different truck classes.
Not on the school buses it's vents right to the turbo inlet
@powerstrokehelp
Bill, you mentioned you weren't sure why hooking up the Crank Case Ventilation system to the turbo intake fixes the oil leak.
The answer is physics! By creating a slight vacuum on the crank side of an engine, air is drawn into any small crevices to equalize the vacuum. With the air being drawn in, the oil isn't allowed to leak out. Without a vacuum, the oil is free to leak out of any seal that cannot hold back the pressure
Fun fact for ya
i have to say i did ccv delete on 6.7 cummins. it runs awsome just straight draft tube. i do think the delete kits with small 2 inch filter on end are bad idea because if they get plugged then pressure will build in crankcrase. but my truck has been running great with just a hose to atmosphere
300k and never missed a beat, always vented to atmosphere....
Yep! Both my gas powered cars are vented to atmosphere for quite a few miles now and, as expected, no issues whatsoever.
What's your oil change intervals?
Mine too! No leaks or anything what this guy is saying. Lol
this guy don't know what's he's talking about 🤣 like venting ccv to atmosphere would ruin the turbo?!! like who would have thought 😂😂😂😂😂😂
I've been venting the ccv to atmosphere for over a year now without any problems lol
pulling a vacuum on the crankcase will increase ring seal and free up HP... the ticket is (especially gas vehicles) is to evacuate to an free flowing exhaust... not as good as pulling a vacuum with a pump, but better than the octane lowering oil entering the intake.
All I know is I did this mod along with adding a bypass oil filter and changing out all of my fluids. Within 2 hours of running, I was leaving a cloud of white smoke behind me everywhere. I was freaking out, thinking that I had a bad injector. Then I watched this video and returned my CCV to stock and it is smoke free and running like a champ! Thanks Bill!
Just gonna throw out the fact that big rigs vent crankcase to atmosphere. Look under any big rig, they have a hose that usually hangs under the front axle.
Also if oil level rises from leaking injector or a fuel line rupture it can and will cause a runaway to happen. It happened to me..
Didn't think of that. So, you mean fuel in the crank case would feed back through the CCV, through the turbo, and keep feeding the engine. Interesting.
I just bought a 2012 with a 6.7 and at idle I would smoke a inter section out with white smoke. This is after a full delete on the exhaust. I put the by pass on and found the previous owner had 3 gallons of oil in it. I drained it all and put the required 13 Qts in. Now I get some minor white smoke from the bypass. Plus the CCV was causing oil all under the hood and engine bay.
I’m here to tell you very little oil is exiting the CCV box. At 219,000m, my 11, 6.7, f250 doesn’t use a drop of oil between changes. I replace the CCV box every 50,000m but unaware if there is a recommended change interval. I think someone once told me that, but not certain? If anyone knows the answer please comment. I don’t see any need to delete the CCV box. What is the gain? It doesn’t fail, you don’t get additional fuel mileage. What is the upside? I’m 70 and for the most part have always erred on the side of original engineering. I’m not qualified to anticipate unintended consequences of alterations, especially the complex diesels today.
The intercooler is designed to have oil blocking it up? 😂😂😂😂
Oil doesn’t plug it up. The motor burns it. A road draft tube works on a semi because it vents at the crank case. A 7.3 had to vent at the valve cover, which is why the CCV mode doesn’t work on a 7.3. Ethier leave it alone or put a catch can setup that adds to the existing desighn.
I bought a 2000 School bus with a T-444E(190 HP) in it, that has a RACOR device on top where the CCV hose comes out.. from this RACOR there is a hose going to the Intake Past the Intasle air filter and Before the Turbo, are you familiar with this deivce? or should I take it off and replace it with a stock CCV hose? Ive not seen one of these on a bus or sure what its purpose is.. although I do know it leaks oil around the base of it so ive got to take it apart and see whats leaking in that RACOR..
i loved this video. you should do another one entitled, "dumb shit customers do to their trucks." Or start another channel of daily rants, you can record them when you're test driving trucks!
On my 95 7.3 the blow by pushes up my dipstick. But my motors only has 136000mile and it runs great so I'm pretty sure my crank case ventilation is clogged or something but I don't really know anything about it so I don't know how to check it
I keep waiting for one of yall to point out one obvious fact about the modern diesels and why the old diesel designs could be vented to atmosphere and the new ones cant. HINT: this reason is not emissions related. Is anybody listening? Houston can you hear me?
more boost, more rpms= more blow by
Yes thank you. The older detroits ETC never turned the RPM of a 6.0 or 6.4 therefore you could get away with the vent to atmosphere. 2500+ rpms make huge pressure in the crankcase and the turbo seals get pressurized on the drain back, oil is being pushed from the other direction and the weakest link fails.... the turbo seal. Gold star for Tyler.
I love this! All these people who think this video is foolish..... where are you? Look Im not a mechanic but I pay attention to your information and read everything I can get my hands on so I can preserve and maintain my truck. What I do know and understand is that you cannot compare Ford diesel to any other diesel. I saw alot of people comparing to Detroit and Cummins. Apples n oranges! Great video! They can come to you when they f@ck their shit up and spend money!
I have 50,000 mi on my 03' 6.0 Powerstroke CCV mod. A total of 160,000 mi. Mostly towing my 13,000 lbs 5er. Original turbo and injectors working flawless with SCT tow tune stage 2, Bulletproof diesel oil cooler coolant cool delete front relocation air cooled, Bulletproof EGR upgrade, the 97' 7.3 Powerstroke manual clutch fan nut/bolt adapter with the heavy duty manual clutch fan and the coolant filter regulated by a Mitsimoto thermostat. It does have the EGR hole plug but can be popped out and EGR valve popped in at 10 min of work.
I live in California so smog is an issue every 2 years. Stock everything exhaust.
I have to mention that some individuals have CCV modded without addressing a down slope constant. If it has a droop that will catch oil build up, You will have blockage. This will cause crank case over pressure and can defiantly damage your turbo etc. The first sign is smoky exhaust then turbo seal leakages. If the CCV mod is working properly then you will notice smoke from the tube. Sitting at the fast food window can piss off the cashier getting CCV smoke in their faces. Another problem in California (or any super green state) could be a CHP next to you at a stop light and having CCV smoke blowing between you. This happened to me coming back from Reno going thru Susansville California once. Luckily he didn't notice.
Pay off for me? No more slick turbo boots blowing off and my 7000 mi oil change still has some translucency to it. My oil used to be black by 4000 miles.
I am not a certified mechanic. I have a lot of experience as a owner operator for 20 years doing my own work and do agree that the large engines are some what different. I did mange to run a Detroit 60 series in my 95' Pete for 1.2 million miles with the exception of only getting 800,000 miles out of the turbo everything else was untouched.
Bill, Can you please comment on using an oil catch can in this situation? Of course it would have to be properly sized and unrestricted... Would love to hear you comment on this as a compromise.
I guess the vacuum in the crankcase does a pretty good job at the turbo. It sucks at the chargers drain line and reduces effective oil pressure at the turbocharger bearings. Positive pressure in case of bad ventilation would be really bad and even increase the pressure there.
You can vent it through the exhaust which is a vacuum as well…
Ohhhhhh! That's good! I love perspective! And thank you for sharing without being arrogant about it 😎
If you look at an International 444 engine it does not have the ccv going into the turbo !
If your talking about the 7.3 it does. On the air filter piping that's rubber theres a fitting that fits up with your ccv on the valve cover. Then the gases get sucked into the turbo.
Um, crankcases that vented to atmosphere were used for years and are fine; when a pressurized gas, such as that from crankcase blow-by, is permitted to vent to atmosphere it quickly does so. Positive Crankcase Ventilation (PCV) does draw cylinder blow-by from the crankcase via intake draw vacuum to burn it via the intake air charge, but typically PCV systems have a check valve, a one-way valve that prevents pressurized air from returning to the crankcase. Regarding the exhaust side of the turbo, you're suggesting the blow-by airflow from the crankcase via the PCV introduced to the intake side effects turbo pressure and keeps turbo seals from blowing on the exhaust side? First, intake air is readily available to the turbo via the air intake system, and the turbp doesn't care where its air comes from; second, the PCV check valve prevents somehow pressurized intake air from returning to pressurize the crankcase. I think you're full of prunes on this one.
Cat,Detroit,Cummins are all vented to the ground. I really don't understand why Navstar chose to do this other than emissions laws.
Not that I would want all the blow by under my pickup, I see no benefit from rerouting the CVS from how Navstar designed this back in the turbo. It tends to be quite messy under trucks with the crankcase vented to the ground.
Steve, that's just not true. This mod does not make an oily mess under the truck. I've only seen this issue when there is major engine ware and there is excessive amounts of oil going past the piston rings. But on normal engine operation there isn't and should not be enough oil coming out of that vent to cause an oily mess under the truck. Also a lot of folks that do this mod run the hose all the way to the back bumper and down. that will keep everything clean under the truck, which usually isn't an issue. Again most diesels came stock this way (vented right below the motor) until all this BS emission stuff started going around. All this man made global warming stuff is BS.
But navistar fucked up bad on vemting back to the inlet of the turbo. The systems were failing and some trucks had blown head gaskets because of it. Excessive oil in the intake, like fuckin puddles of oil. There fix. Clean the CAC and intake. Change the centrifugal filter and vent it straight to the ground. Just like 7.3 idi, the cdr valve cause most od the head gasket issues. Oil in the intake causes hot spots in the cylinders and obviously blows head gaskets, destroys valves, valve seals, valve guides, ect. I deleted mine after replacing heads and exhaust temps dropped 50 to 100 degrees
Hi I have question I have 2002 f550 CRANKCASE VENTILATION is liking oil on the litle pipe gon to de air filter and turbo I see litle oil on the turbo the pipe from air filter to the turbo I see oil I have to change CRANKCASE VENTILATION filter because went the truck needs power the truck lost power and smoking inside the cabin or on the air conditioner the temperature is ok oil thanks
I just bought my first diesel. 1996 F250 7.3. I thought I had a really bad engine leak cuz smoke was coming out underneath my driver side. I follow a hose up that's just blowing out smoke and it appears to be this ventilation on top of the valve cover. The owner put a d66 turbo on the engine. Don't know if that's an upgrade or replacement. Is there a place to plug this hose into that style of Turbo? I really don't want to suck fumes all day
Catch can. Get rid of the the oil in the intake, improves fuel economy. Simple.
If bad then why did 97-2003 vent to the atmosphere?
A voice of sanity in the wilderness! Thank you for sharing your experience/wisdom!
Mine is stock. Just saw I have some blowby with a little bit of puffing pressure. Is that normal? Doesn’t blow oil cap off but just a couple months ago I had none.
Hi, (1999.5 7.3L) My Turbo Pedestal Small O-ring fell into the Hole next to it while upgrades.. I was distracted and I saw it fall in to the return hole. What should I do? Any help please :( I used an endoscope and nothing..
i did the ccv mod and i had put it to my down pipe at an angle and it works great.
2011-2016 Ford 6.7L Powerstroke Baffled Oil Catch Can Kit Installation by Mishimoto good or bad
I got NO TURBO; what happens if I disconnect the crankcase breather on my V6 from intake housing and let it hang downwards on its own.( but I plug up the air intake housing hole).. will it affect the engine?
What about using a catch can?
would a oil catch can help catch the oil from the ccv? also would it help to catch that gos in to the intercooler?
If the green O-ring or the hose has a leak, can it cause a P0401 CEL code?
What about catch cans?
I'm working out a design for my 6.0 right now. Gonna do it after I finish the HPOP STC fitting replacement.
I have a 2004 6.0 and I have an excessive amount of oil in the tubes as well as pooling on top of the engine,so much it is coming out on to the hood.I can't see where the leak is coming from. The engine runs fine. Advice?
what about the 6.7 powerstroke with the EGR caking up? any advise on that? do you recommend that CCV delete on those?
Awesome vid!! You just stopped me from doing that mod!! Thank you!!
so i need some help figuring something out. im looking at some box body ford diesel trucks within the years of 1990 and 2000. im not looking for something for pulling im more of looking to make a drag racing truck. im gonna get a 7.3, i know alot about power strokes but honestly i really dont know much about the IDI diesels. so im just trying to figure out what would be a better pick for me, the 7.3 powerstroker or 7.3 IDI. i want something that will have alot of parts options online and i dont wanna be constantly repairing small parts on the engine.
KingPohHere idi
I hate to tell all you guys but I did the CCV mod on a 7.3 with a brand new turbo. Any restriction in that CCV mod will make Oil come out of the exhaust housing of the turbo. ( happened to me. Had an oil catch can on there. ) There isn't a so call rubber Oring but its called " turbo piston ring" its the metal ring on the shaft you replace when you rebuild them. Now having said all that I have vented the ccv straight to atmosphere and not had the same issue.
So I do not NEED a catch can?
I lost brain cells watching this
Bill, do you consider it a bad idea to do the CCV reroute on the 6.7 powerstroke engine as well? Just wondering as I'm considering doing it but really don't want to deal with these issues if this is the case on the 6.7.
hi Bill I have this modification on my truck however mine is more like a catch can that I can drain it's still hooked back to the intake pipe do you think this would be ok or should I do it with my catch can
I saw a test on an engine where they tried several variations of a ccv system and the engine made the last power with no ccv system. Better with a vacuum system and made the most power with a belt driven vacuum pump. Even with the load of the pump, the horsepower was still higher. Keep giving the good advice.
Thanks for da info, wasn't really sure if I needed to do that but now I'm gonna leave it as factory, got any advice on EGR delete, dealers ask if mine is deleted, does it really help & any downside to this
Have you seen into a 6.4 EGR with about 40k on her😢🤪😱