Fixing a subscriber's SHAKY C15 Cat engine. Bad Damper? Low Fuel Pressure?
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- Опубликовано: 29 июн 2024
- In this video we are working on a subscriber's C15 engine that had various problems, but the main one was shaking under a heavy load on the engine. Can we figure it out?
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Maybe stupid question…..
Let’s not consider why only that for some reason you look down and notice your E-model CAT is over heating (not extremely) but 225+. Is it better to cut the engine immediately or turn the fan on and let the temp come down gradually?? Thank you…
If you have covered this previously sorry I missed that..
Hello, I'm a Chinese caterpillar repairman. I hope to make a friend with you. How can I contact you
Can I get these regulator part numbers for an MXS please?
Very funny!
I think more mechanics should do videos. I believe a lot of the reason people are bringing their trucks to you specifically is because you've proven yourself to be a very knowledgeable and very competent mechanic that is also highly detail oriented. Have this channel and showing your work gives people comfort knowing that they're stuff is being repaired by someone that will make sure the issues are fixed before you sign off on the truck and let it leave the shop.
I agree with you but, what people need is honest mechanic.I was O/O for a long time and that was quest like don Quixote assignment.I never knew why is so hard be honest and charge honestly.Cheers.
@@malchone1 you hit the nail right on the head man. That's another reason why people take their stuff to people like Josh. My step-dad has a 2000 7.3 powerstroke that he recently started having trouble starting and took it to a local shop because he was so busy at the time he didn't have time to fix it. They put in a new high pressure oil pump and that didn't fix it so they did another High pressure pump and that still didn't fix it so they put in a low pressure oil pump. They did all sorts of stuff and threw all sorts of parts at it with no luck and charges for every dime. My step-dad finally had enough and took the truck back still dealing with the same problem. He was able to get some time to work on it. A set of 8 glow plugs later and the truck started with no issues. Mechanics now a days are so bust trying to charge as much as possible they don't bother checking the most basic things. Like in this situation I'm sure a different mechanic would've just done a whole new transfer pump instead of just fixing the pressure regulator.
@@ThirdHornet before I even read down to where the actual problem was I said to myself pull the glow plugs and test them always start with simple and cheap unless of other evidence. Today's mechanics aren't mechanics they're technicians.
@justinthor Not if they're confident in the work they do. If they're cutting corners or are not doing things correctly, then of course they don't want documentation. Ironically, if they are doing things the right way, documentation protects them.
It's always a plus when they aren't trying to hide their shotty work
It just proves how good of a cat tech you are when people are willing to drive hundreds of miles to get you to take care of their pride and joy.
Keep up the good work as if I was a trucker and was not mechanically minded I would have driven hundreds of miles to have you take care of my truck. But sadly I don't have a truck with a caterpillar engine, Infact I don't drive period, but I will gladly watch a professional cat technician, you, film your work and learn about caterpillar engines regularly.
Good info there, with the fuel check valve there the torque is important. we had the pressure gauge on the fuel and slowly torqued the valve up and over torqued and the psi would change, set at spec. it is correct psi.
A trick with the viscus damper is take the temp with a temp gun before starting, cold engine then run for 5 mins and take the temp, it should be warmer then the first temp reading due to the internal ring moving through the fluid inside the damper, if the fluid has gone bad (hard) there is no temp change. We change them at 800,000 km/500,000 mi as precaution to save crank.
That is a super good idea with the damper. I need to cut the old one open to see what the insides are still.
@@AdeptApe
Yes include that in your next video
When I had my C-15 rebuilt the mechanic to me he always installs a new crankshaft damper when rebuilding engines. He explained it helps take the shock when under load. He thinks most crankshafts crack due to the lack of a new damper.
Most crankshafts do not crack
@@fastinradfordable yeah but the ones that do the guy believes are because of the damper? What was the point in your comment again?
Cummins recommends replacement at 500k miles on ISX
@@fastinradfordable the crack and the also clean snap, C15 especially common for shearing at number 1 cylinder
@@fastinradfordableThe mechanic that told me they do,probably forgot more about diesel engines, than you will ever know. Just say’in.
This is exactly what some customers need to understand. A "simple job" is one tricky bolt away from becoming an expensive difficult job.
I started watching your videos before starting my cat apprenticeship, after 3 years later I've come back and I cant express how much I appreciate your videos mate.
They show you what its like in the real world, and little bits and bobs that other people/mechanics don't talk about. Thank u for making me a better mechanic!
There is nothing worse than putting in a spring loaded check valve one handed in a tight space! I've invented new cuss words doing that job.
CAT 314D Serpentine Fan Belt. Took 1hr to try by oneself, then took another hr with 2 people - One spinning the crankshaft and feeding the belt on the pulley.
CAT made 2 belts - One was about 1/2" longer. I had the longer one and still took 2 people to install. Very limited space for 1 hand / arm & belt felt it was still approx 1/4" too short to fit quickly. Cursing words flew around like normal vernacular ;)
That’s the first thing I did was change the damper when I bought my c15, it’s 3.1 million miles on it and still running strong 💪
I genuinely enjoy watching things get fixed.
Very well done buddy. You have a way of explaining that is relaxing yet concise. Also love the lengthy videos like this one. Cheers!
That was some great info Josh! Thanks a lot for sharing some of your knowledge!
Great video !! Great diagnosis and workmanship too !! Love your humor too, take care.
Thanks 👍🏽
Awesome video Josh. Thanks for the share. Great diagnosis. 💪👍🔧🔩
Ive been a CAT parts guy in Canada for just over 5 years now and I think i've learned more on this channel then I have in the shop. Thanks for taking the time to make these great videos, they've been a great learning resource. Be careful buddy, CAT tends to make their best mechanics into trainers lol
Ooooooo Oooooo. The APE is back, and it’s a very timely video. My RV with a C7 is currently in the shop struggling with a similar issue….a mysterious misfire that may be fuel related.
Larry, you are the first comment! Pretty cool.
@@AdeptApe wow. Never thought of myself being cool. 😇😎
That engine has a high pressure oil pump to run the injectors, same as a Ford PowerStroke.
Thanks for another great video bro. You are one if not the best 🐱 mechanic out here today. I appreciate all of the knowledge and awesome videos. Keep it up. Am always following you. 💯💯
I have to say that I like this channel quite a bit, while I do not own a CAT engine or would ever have a need for one, I find it entertaining and quite enjoyable. Thanks Josh for your content!
Don't worry, Josh - _damper_ is the proper term everywhere. Because it _damps_ the vibrations. Same as how a "shock absorber" is actually also a damper (and it's the spring that actually absorbs the shock.) A dampener would be something that makes things wet. 😁
I truly thank you for your professiona videos of repairs on the C-15. As an owner/operator you have saved me serious money 💰
thank you for your endless impressive videos, you are very inspiring
I remember driving a Thomas Built Saf-T-Liner bus in the winter especially and hating how long it took to warm up inside the cabin and someone showed me that trick of raising and holding the idle up with the cruise. Man, I could warm up a frigid cold cabin in 15 mins which is impressive!
I noticed my c-15 started to shake while under a load. Been noticing it for a few months. So I found this video and did everything and still didn’t fix it. Then my passenger tank wouldn’t equalize last week. So I switched out the splitter valve and a hose that didn’t help. Ended up being my pickup tube were original and the passenger side had broke off and driver had a crack. Fixed the equalizing between both tanks and no more shaking. Kitty kat is happy getting all the fuel without air. Hope this helps someone.
Great job Josh! Sure am glad you are willing and available.
This guy is top notch people!!!!
Thank you sir, happy to work on your truck.
Thank you for explaining your evaluation of dampers
I had a local shop change the damper on my 2WS with over 912,000 miles on it, and right away, WOW! It does make a difference
Damper isn't just the proper term with CAT, it's just the proper term for it. Dampener isn't a word that was ever brought up in my engineering degree. Kudos to you for choosing to be right :)
Big thanks for the video. I have the same engine and same problem. Sounds like some good maintenance to start out with, my truck has over a million miles.
Hey men great video. My truck dose the same thing under a load I have a MXS. Definitely going to look in to it. Thank you keep them coming.
Thank you for explaining the why you do things. I am not surprised someone would drive from Texas it is hard to find a good tech much less a great tech. Most of the auto techs in my area closed over the plague time and there is no one I have tried that I trust. I am always surprised that techs do not notice the camera on the windshield and the phone calls, etc in my vehicle while being serviced are sad to very funny. My vehicles are older and the dealership keeps busy on new vehicles and do not want to work on older rusted vehicles. Stay safe and healthy, thanks for the education again.
I had the same thing, bad damper .
Our Dealer, Wayne Supply in Corbin Ky. couldn't find it,
I tore into it to put a front seal in it , layed the damper down and it rattled like junk metal , that was the problem, changed the whole way the truck run , much smoother quieter, believe it or not it shifted better.
Need to be regularly checked, I guess take it off and I think they weigh them. Only way I know of.
It is a honor for a tech, when a customer request you and you only. Back in the day I had a few out of state customers. I dislike checking fuel psi at the quick disconnect port. The psi is before secondary fuel filter and you do not get a true reading of cylinder head psi. I have done this a few times when I just can't fuel psi where I like it. I take the 75 lb regulator apart and give the spring a little pull. I have also seen people use the 100 lb regulator out of a REGEN engine. I have never tried that, afraid of blowing EUI seals out. Also on older FTP taken that spring out and give it a pull as well. Any time I have the front damper off, I try and talk the customer into replacing the front seal. I also like to data log and do my high speed five cylinder cut out test and see what RPM's each cylinder will hold. Fan off, A/C off, Air compressor off.
Oh boy I'm glad I'm not the only one seeing red when work on truck😏
👍🏻 Nice finds. Enjoyed the video
I consider the host of this channel to be a premier source of mechanical knowledge in the 57 years of my lifetime.
Due to lack of financial resources I've often had to be my own mechanic involuntarily.
Not that it does Josh any favors, but it does give me a little bit of solace that I'm not the only one that sees red when trying to do what seems to be simple mechanical tasks that turn into trying to move the earth type of headache.
I have to say your work is spot on people come a long way for you to work on there trucks just says something about you work
Good mechanics/shops are hard to find. I’d drive to you in a heartbeat!! Back in the day I had a 3406E and nursed it with blown liners from Iowa to buffalo, back to nampa id, to get it to my mechanic.
Awesome content
Thoroughly enjoy watching
Great detail
always a joy to see your spirit animal (the goat) in action
Excellent work, thank you for sharing your knowledge, 👍👍🚛
You are the Ape Man !
I am the Walrus Coo Coo Ka-Chooo
It’s also said that an old damper is the contributing factor, leading to a broken crank shaft.
Imagine that, the torsional vibration under load!
Awesome! I have two of those pans. No one knows about them. Definitely just a good product. I’m use them all the time. They really keep things clean. Great video man!!
Thanks for the product review, I wish I would have bought mine long ago, they really are great.
Nice work sir, please I have a problem with a c15 engine, initially it is always jerking and vibrating when started and normalise by it's when loaded and after some few months it doesn't start anymore unless you use a starting fluid eg pms . Please advice me on what could be the problems@@AdeptApe
Please I'm patiently waiting for your reply sir, thankyou very much
Great Job Josh!! I will pay you a visit if I ever come your way. Stay blessed
I bought a 2003 International 9200 with the 6NZ Cat-15 because of you and your videos on this channel. The crankshaft had seized the 5th piston and I am having it rebuilt. Hopefully it will be my last truck to retirement. Thanks for your informative videos!
Those are great engines, hopefully it'll give you lots of happy miles.
I picked up a new damper years ago, not knowing how heavy they actually are, I took my KTM adventure bike thinking I would just put it in one of the side hard cases. WRONG!!! That thing was too big to go in a side case so I ended up cramming it in my backpack and riding home, 70 miles. Good thing my wife is a physical therapy assistant. My back was out for the next couple days.
😂😂😂
But it a smooth vibration free ride though ? LOL
@@charlesb4267 Hah, good one!
Thank you very much brother God bless thank you for the pointers you are awesome
It’s had to find strait worker. You putting out the process. And the way you handle the issues. Is like a interview. Awesome. I did a year at a dealership. I retired from the military after 5 tours. Injuries took me out. But there are real turds.
Great job!
Any good mechanic can relate to seeing red. I sure was yesterday working on my 3126 (well, adding electric fans to the charge air cooler as part of my electric fan conversion in my RV). Great video!
I have that same CP impact! It's a great little unit
Great video!
A good honest mechanic is hard to find.
Good Job !
Awesome video, now I’m gonna change my damper and replace my fuel regulators . I run about 85 psi under load. Always thought it was low. I have a 5ek and am experiencing a little vibration . I Learn a lot from your videos sir!
Thanks for watching the videos. The E models don't seem to be as sensitive to lower fuel pressure as the ACERT, but it can give it a chance and see.
Thank you sir, watching your videos have really taught this old man a lot. Don’t laugh, but I was an N14 guy till my first CAT, now it’s all I’ll ever own. With one exception. The 2019 KW that had the X15 (trash) that I just sold in Feb.
Learned the cruise control trick on the first Detroit I drove. I was told the oil pressure would drop so low at idle it would die. So raise it off idle and keep the oil pressure up.
I love your videos please continue 🎉
Thanks for what you doin . Looks like I got the same issue.
I have replaced damper on my truck I felt the difference right away on a start the engine and shut off, driving smoother, the most important I got my fuel mileage back. My fuel mileage in SE region 7.11- 8.19 mph, up NE forget about - 6.75. will be replacing damper every 400k. The reason replacing damper - front seal could stay almost a year then leaks. My engine NSX C15. CATs are the most mechanically friendly engine, it's just to me. Love the videos.
cool trick on raising the RPM. My Ram Cummins has that same feature coincidentally
That’s the benefit of trucking. If you find a good shop or mechanic you can always book a load to go there.
Have you publicly announced which location you work at.
I wouldn’t mind having the valves set on my C-12 and the Allison transmission serviced. It’s a motor home so you might not want to touch that. 😂😂
Man i love your videos
There's also a fuel bypass valve in the engine mounted fuel filter head.
As for that pump spring, that's a light spring. Stretching it an inch and putting it back in does the same thing. But, given the likely age/miles on the pump, I've had them go bad at 250k miles before. Anything over 400k, for sure replace it. Not much more money than replacing the pump, after core is returned.
I thought you were in boise lol we drive a simi past your shop going to Portland from Kansas city. We love your show and cats we got a 3406b
Massive thumbs up mate, as an Australian guy I have never ever heard the word "Dampner" until I started watching US mechanic content and I can say that only in the US have I ever heard anyone say that word; the rest of the world calls it "Damper". "Dampner" is not a real word
In the US, nobody says Damper in my experience. I remember thinking Damper was a weird word the first time I heard it. Everyone looks at me weird when I say it.
@@AdeptApe amazing how different the US is to the rest of the world
Most applications in America call it a “Dampener”
@@mtvrchannel3051 Interesting, Must be a US only word
Great job on making these videos! Always great help and information.
What part number is for regulator and o-ring? I did see the one for the spring on the package. I'm currently experiencing the same symptoms.
Thanks and look forward to more videos.
Had a 972 roll into the shop with your sticker on the side this week. Somehow, they cracked the transfer case.
Man you a Dam good man for maken these video thank u
Thank you Billy.
Good stuff
The red…….. I caught myself laughing instead of sharing the frustration. Well done.
knackered Dampers destroy crankshafts all the time........good call that the customer knew something was wrong, and the issue was corrected. If something sounds or feels wrong, it usually is.
Great video
Really enjoy watching
Helps me understand my 6nz
Thank you for putting the part # for the fuel transfer pump spring. My local Cat dealer told me I had buy a whole new fuel pump.
Trying to fix a only start with ether issue. Has to be fuel delivery... I think?
Might have to send you some destructions for your videos. Last week pulled a 3306 head and the block was warped and the liners were uneven. The deck plate was a bow shape LOL. 3516 pulled the head to find a hole in the piston from a dropped valve. I have seen a lot of very destroyed CATs
I think I'm going to pull the radiator on my 387 lol. Not much room at all . I'm going to install Pittsburgh powers mercury filled balancer along with a new damper. My damper is originally with 1.4 million on it . Mine has a vibration under heavy load also so it's time before I break the crank lol. Good video.
As always you da man!
I love watching your informative videos and content man. I have a cat C-15, would love to have you look at it but I don’t know where you from. I’ve got couple little issues with it.
Idaho, email me at adeptape@yahoo.com to get in touch.
Best channel on RUclips!
I'm glad you think that, I'm certainly not claiming that though.
I'm gonna assume Josh didn't even bother to put in his mic when installing that sucker which means we missed out on some entertainment
Cats don’t like air in the fuel. Get a AirDog Champ, they take out all the air and you get an even fuel spray which means more power because of the better combustion. 😊
One trick that might have made installing the hard to access plug easier is to cut a section out of a correct size allen wrench, slide a ratchet spanner over it and push on the end with your fingers or lever bar while turning the spanner
Love the RED
Thanks!
Thanks Wayne for the Super Thanks!
On the destruction you said that " it pretty much destroyed the piston " . NO it absolutely, positively, with out a doubt Destroyed the piston. Years ago I had a 3208 in a 225 backhoe that got overheated. Each head had ¼ inch wide cracks, and when I pulled the rings off the pistons I was able to twist them like bailing wire. I kept on of them for years to show, I had 8 complete turns on that ring. 2 new heads, new rings, (well complete overhaul used the same pistons) and put it back to work.
I've followed your channel for years, had an MXS, and now a BXS. I shimmed my Mxs and fixed this problem. But due to the style plug in the bxs it is impossible, and it's been fighting me. I just replaced the transfer pump and it got better, but have NEVER known of the regulator by the filter housing. I literally changed my pump yesterday and this video couldn't have been better timed! You do us acert owners a great service and on that note! Thank you for all you do, it's immensely helpful!
Thank for watching the videos Chris and thanks for keeping those Cats running.
@@AdeptApe so I've changed all my sensors fuel temp, barometric, intake air temp, intake manifold pressure, iva oil pressure, iva solenoid, new ivav harness, new motor harness, diverter solenoid. Still skipping, it only does it when above 175 coolant temperature. Like skips until it picks up fuel and then runs fine until you get out of the throttle like coasting then repeats, when weather temp is below 60 degrees it never acts up at all! It loves the winter months. Any thoughts I'm at my end, and really don't know what to think. No check engine codes at all.....
@@chrisarcher4098 Have seen EUI's fail hot. When engine cools down start hitting again. Most of the time it is five or six EUI. I put the truck on dyno and load it down until misfire starts, use ET to locate which EUI has failed. Right now a EUI from Cat is month's out.
@@johngoldsmith6629 that's exactly what it is doing, when you say EUI you're referring to the injector right? I was definitely wanting to get it onto a dyno very soon. I've covered all other basis.
@@chrisarcher4098 Yes injector, twin turbo part number 10R1273, if I recall and get a new hold down bolt 8S9191. Single fuel tank or dual?
Save the extra threaded rod that you cut off when installing a new brake can. It works great for installing the damper
do those dampers come off easy are do you need a pulley thank you for your time
@@serpentrae they come right off ez
@@CTX50 thank you much appreciated, stay strong
I have been following your videos for awhile now your a very knowledgeable person when it cones to cat engine's and cat is all you speak of but are you as knowledgeable with Detroit and other engine's as you are with catapiller?
What's wrong with the damper ? Why it needs to be replaced? Thank you for the nice work
Every time I get a bad vibration in my 379, it usually ends up being a bad engine mount. Either the bolts backed out of the bell housing mounts or the rubber biscuits are shot. The poly insulators seem to last better. The tell tale is that taking corners will increase or decrease the vibration.
Oh, I wish there was audio during the red, haha
I really enjoyed watching your videos, please I want to ask what was the engine doing before you decide to replace the damper and can the problems also applies or happen to 2500 series Perkins generator?
Man do I know about seeing red. I’ve had my wife watching me cuss and yell, her comment was and you love this. Well I do but on occasion I do get frustrated. So I know where your coming from. I just started working on diesels because I’ve owned a few and currently I bought a motorhome with a Cummins engine. Had to put on a injection pump and there was no room, you know the rest,
Hey get the 1/2 12 volt Milwaukee it's small and it packs a punch my tool guy let me borrow one to work on my dodge and it was amazing so I bought it I use it for everything big now bc it's light and small and if u put the 6 Amp battery on it makes it even better
According to Bruce @ Pittsburgh Power, the vibration damper should be changed at 400-500K miles. The silicone fluid the inner ring slips around, gets hard. The ring can no longer move independently so the it can’t dampen vibrations.
Got my damper from Bruce. Opted for the added balancer also. Huge difference!
"Red indicates my anger level." ....instantly turns red
I think I've found the Rainman Ray of Diesel, here!
Great video, do you do any work on series 60?
That owners are prepare to travel a substantial distance for your services speaks to how hard it is to find somebody that you can trust not to rip you off. It took me 30 years to find motor services that I trust. Oddly its run by a guy who I first met as a spotty teenager hanging out in his Dad's coal yard. Hes so busy thatr he doesnt need to invent faults and for jobs he thinks someone else would do better he refers you to them.
The viscous dampers do slowly die over a very long time. But the rubber dampers on gas engines work until the rubber just disintegrates with the inner and outer part of the harmonic balancer banging away at each other. The customers come in thinking the poor running, noisy engine is a goner.
Thanks 🙏🏼 going to fix my 550 kw generator I’m in Haiti 🇭🇹 the generator can go one day working non stop and two time a day it will stop working code low pressure going to verify the fuel pressure then do your step then after my plan is to replace the fuel sensor
Detroit and Cummins also call it a damper. Pickup trucks also has front end steering parts called dampers. I don’t know why I hear dampener so much.