Diesel Engines 101. How The Engine Cooling System Operates.
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- Опубликовано: 27 сен 2024
- In this video we are discussing the Diesel Engine Cooling System. How it operates and the components in it. Thank you for watching.
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Hey Adept keep dropping these videos I’m going to school to become a Heavy Duty Mechanic and these help
What school?
Shain Andrews VCC in BC Canada
@@k9xmysterious385 Good luck to ya. Stay focused, learn all that you can. Education is life long for the successful.
Good luck mate you must come to your internship at Teck Coal they’ve a lots of equipment to wrench mate
Shain Andrews thanks bro appreciate it I’m excited to learn this trades
You are a great teacher man I appreciate the free videos keep up the great work.
Best Diesel engine explanation videos I’ve found on RUclips by a long shot
Been in the business for 25 years old or operator transfer driver and I gotta say majority of the mechanics out there need to watch your videos they could learn a hell of a lot it is very sad to say but it is true. Your diagnostic ability is invaluable money saving the guys like me. Thank you
There's only 2 or maybe 3 people that care about how well they do their job in the shop in a retail setting. Planned obsolescence, and the dumbing down of society really left us all in the dark.
This guy is a god of engines
Rule of thumb, coolant temps runs roughly 110 F above ambient air temp. You have two types of flow, internal and external. Naturally when the regulator is closed coolant is forced through the bypass hose and flows back into the engine. When your regulator opens the path for the bypass hose is blocked and now coolant is forced through the radiator and has external flow. You also have a shunt line from the surge tank to the water pump, which is important. A bleed hose in the regulator housing to the surge tank. A 15-16 lbs radiator cap is preferred. Seen lots of brown coolant running a 10 psi cap or less. Over 55 % of engines fail due to a cooling system related issue.
How about D series engines which don’t have surge tanks. Would it pay to design one and fit it in?
@@rod5262 What is a D series? This is the basic of the Cat truck engines.
I know you posted this 3 years ago but would the surge tank also be called the expansion tank?
@@jamesgarner4127 Correct
@@johngoldsmith6629 thanks John, just wanted to make sure I was on the same page. I know people call stuff by different names.
Thank you for giving us this knowledge for free.
Very nice freeze picture
You should seriously be a professor. Incredible.
Ive been an ag tech for two years now. you've helped tremendously.
thanks
im going to school online now and looking for a job in the diesel field your videos are very helpful
Thanks so much Josh I’m an owner operator out here in Cali and I’ve learned so much I’m no longer idling my cat and I’m just soaking in all the info this is amazing thank you, Brilliance.
Thanks for watching Mike. Glad you like the videos.
More 101 videos please. I appreciate these. Thanks!
I've been enjoying the "school" videos and learning.
Thank you
You are amazing. I will remember you till my last breath
You are a great teacher man. Your videos really do help me out in school 👍
Some bright buddy will one day come up with a medium to utilize the latent heat generated by the combustion function to be the source of cooling. Simplisticley put as example only the fan or pump be powered by the waste heat, the object of this topic. Maybe a bit out there so to speak but you my friend are a wonderful ambassador to diesel engines especially the beloved CAT. thankyou from Australia mourning the loss of c15 16 & 18
That is hyway cat motors gross weights regularly above 100 ton.
One of the best videos I've watched on RUclips 👍
Informative video as usual, Greetings from middle east.
I was having issues with overheating and my water pump went out. I didn't stop soon enough (I stopped and ate down within 5 minutes) and now I'm having to replace my liners and pistons. Basically doing an inframe without dropping the crank or removing the front gear cover. I was having slight overheating issues before the pump went out. I think I'm going to check my radiator and my hydraulic cooling fan. Thanks for this video!
"I think I'll call that wax thing a THER....MO....STAT"
LOL
Is this part 5?! I'm freaking out, man
A video on how to determine if a heating issue is a radiator problem or water pump problem would be awesome right about now.
First this video and then an rpm video. It's like your getting your ideas from my problems.
Thanks for your videos man! They’re the most well explained videos ever. You should teach diesel mechanics at Harvard
PRODIGY Adept Ape
Tutorial brilliant video amazing thank you for sharing what you know with us
God bless you and take care and have a great day
PRODIGY Adept Ape
From Nick Ayivor from London England UK 🇬🇧
Excellent job ❤❤
This is 1 hell of a video.
These videos are great, and I really liked this one in particular. The way you explain stuff is awesome
Thanks Josh for all info that you give me and all the people all over the world to that follow your website 👍👌
I have a technical interview tomorrow for a fleet engineer and I am depending on you bro , I am watching the whole series
These definitely help. I have experience replacing parts but never quite understood how it all works together.
Great lessons.. Looking forward to the next video
These videos are awesome !!! Can’t wait for the next one. This is giving me the confidence to get my own diesel
I learn so much!
Now i own a Cummins, darn
No way
Another great video as always. We had that same overheating on a long hill on a hot day issue on a transit bus and it turned out the radiator's exterior was filled with gunk & dirt.
I know I appreciate these videos even if I know some this it’s good to refresh and learn something new is always fun! 😎🍻
Very cool, I’m
Actually contemplating putting an air cooled deutz in my 78 ford. I know they’re not as powerful as other engines but it be different
Deutz engines are very solid, just keep the cooling fins clean and maybe install a oil temp gauge. I've driven a Deutz KHD tractor and it was a very usable tractor.
Excellent job! Way to break it down!
Thank you
Thanks for the vids
Down here in Australia. If your running up the top end or the vast outback. You run the fan all the time. Especially when pulling 3 trailers full of cattle.
That's really interesting, I figured a thermostat would function off of metal expansion rather than wax
With your thought experiments I became RUDOLF DIESEL for a minute in imagination , felt so good....
Always Great Informative and Educational Videos.
I always have TIME - to Learn New Information : ) Thank you !!
Once again Josh, you nailed it!
Hey Josh! Just in time! Another great summary!
I recently experienced that with a 94 Chevy 5.7l I had bought off a friend, it had a freeze plug leaking and instead of fixing the problem she was told to put black pepper in the radiator which then caused a domino effect. Which I'm sure I don't have to explain to you but after a couple of hundred dollars later and a few hours of labor I ended up replacing the radiator because it wouldn't properly cool the coolant. I wish more people would understand that, that's only a "temporary " fix and if you continue it will eventually cause more expensive problems. Lol
I replaced the clogged radiator in my old truck with a brand new one because it overheated going up a long hill on a hot day. Now it takes 40 minutes for the truck to warm up and get heat out of the vents on cold days lol. Previous owner put stop leak in the radiator and that stuff clogs up pretty bad.
Wow i never knew the whole boiling point thing makes total sense. I remember someone came in to our shop and was like ya i have a zero pressure coolant system. I asked him why, he said it was useless and not necessary. Well now ill know better:)
Now this video it’s very good.
Would love one of your cat caps if possible please 🙂
Well my C-15 acert BXS ran at 100°F today all day in cold weather, and I think it was a little bit more responsive as far as going to and from different speed limits.
Another Great Video from the master of Cat Diesels!!
I like this dude enough said....
So good. Thank you.
Deutz air cooled were great engines.
I still remember the 1989 ford bronco I had bought one day and it apparently was missing the entire lower hose for the radiator but never overheated on me. Even when I would run that mf hard.
Even a few diesel engines that were air cooled
What about deutz diesle? I spent 2 years at an agco dealership, and seen plenty of v8 deutz turbo charged engines in gleaner combines. They were running around 300 hp, and if maintained were very reliable. I was an Apprentice when working there and didn't have to get into them, they had a crazy fan and large oil cooler i believe, but don't know because, like i said i was liw level and fixxed everything around the engine.
A closer example to the truck engines would be a Deutz F6L 912 straight six air cooled diesel
My dad has a 3406e we replaced radiator hose and thermostat. He was having trouble he will be loaded around 83 and truck would only run 150 but today he is running it with new parts but if that’s not the issue what else should he look at?
Lets talk about checking cylinder Head for leaking under boiling temp around 90 c or 200 fahrenheit is it test work?
When are you going to be able to do more vids like this?
Excellent video. Why do some trucks have a little pin size hole on the cap of coolant tank? I am talking about a mack.
That is generally a vent tube for when the cap relieves pressure or needs to pull some air into the tank when it cools down.
@@AdeptApe thanks so much.
Adept ape: An air cooled diesel can only make 100 hp.
Deutz and Tatra: hold my beer.
Not to mention Porsche
Great work well put together 👌 would you recommend 100% coolant on a old problematic over heating construction machine?
Not in any motor... straight coolant tends to boil at less than 212, typically coolants require at least 25% water.
I use a 7 5% glycol mix to get the maximum freeze and boil temperature protection. My Cummins sees both extremes 30-40 below zero fahrenheit in Montana and 117 + in Las Vegas, Nevada
There are a couple of coolants like Evans that are designed for use straight and a non pressure cap
boil temperature is 240+
❤
Yeah the 90's Golf mk 2 and 3 like the Vento are known for faulty thermostats. My MK3 had the same issue it barely went up to 70°C but should have reached 90°C. That is also the only case I've ever heard of a necessary thermostat swap. I swapped and since then it runs in its cushy sweetspod (1.9 L TDI) :D
My MK2 Golf 1.6 carbureted has the original thermostat from 1987. But the car has only 115 thousand kilometers.
@@nicostenfors5690 Maybe you're lucky on that :D But nice to have a 1.6 MK2 Golf :)) - happy drving :D
Guys can you please help, i have tlb that are overheating, I did put new headgaset, new termostart, new water pump, new radiator & radiator cap, fan plate are still good but still overheating. Can someone please help me
Great vids adept thanks, hey i have a question for you . Im currently involved in diesel classes what textbooks about diesel theory or diesel technology would you recomend to start with?thanks in advace.
Adept ape...I need some help. Our motorhome has a 2006 C7...I have had all the bullet proofing you suggested performed. On our last trip it overheated showing check engine light, warning and apparently went into 'safe mode' losing power while I got it off the road. I let it idle for a couple minutes hoping the heat would go down, it did not appear to so I shut it down. After waiting for a while, I went back and checked the coolant level through the yellowed Monaco RV overflow bottle...there was no coolant in it. I carry spare so started to fill it....it took all 3 gallons that I carried and that was enough to get it started and get it the 20 miles home without overheating. I see no leaks anywhere, no white smoke from the exhaust and the engine never lost oil pressure. I know there has to be a leak somewhere but do not see any indication of one. Suggestions before I take it to the Cat dealer in Redding, Ca?
Hello Greg, check the oil to see if you are getting coolant in the oil. I would also check the system under pressure with a cooking system pressure checker.
I want to know where you got that hat lol, I can't find it anywhere
Hi Joshua, I like the channel great show and alot of knowledge on CAT engine. I am a diesel mechanic as well in South Africa. I would like to know what Cat engine can I put in a Nissan Patrol or Toyota land cruiser, will still used the original gearbox and Differential. Please let me know. Thanks Mark
Could you add evaporator coils in front of the radiator to cool the air coming through the front? I feel like this would work great in hot weather.
You don't want it to cool too much.
Do you mean like a swamp cooler? The amount of air flow through that may not drop the air temperature too much, but would reduce it. You could put a mister system in front of the radiator, and mist the external side of the radiator, but you would need to refill the water tank and would possible cause hard mineral deposits on the radiator.
@@AdeptApe I meant a separate A/C system with the cooling coils in front of the radiator. It would cool the incoming air before it reaches the coolant radiator and CAC. The "auxiliary" A/C pump would only engage in hot weather (30°C or above) or if the engine, for whatever reason, is almost overheating, and would still be disengaged if the engine is not warmed up yet.
@@electric7487 any system that is not independent of the main power source will just add more load and therefore more wasted heat energy to the system thereby creating a redundancy. Just get a better radiator.
Short answer is yes .
It however has very limited range of use cases. Gg the dodge car with the evap core in the intake, to supper cool the intake and prevent heat soak during burnout and staging. The catch is it is temporary relocation of heat. Yes the intake is getting cooler but the freon core in front of the radiator is heat soaking the radiator and any other CAC device is behind it. for drag racing this is just fine you won't run it long/hard enough to get this thermostat to fully open on the radiator anyhow
on the road application we'd only add heat mode to both the radiator portion of the system (the radiator lives behind the freon course and your example 2) and would add about 25 horsepower worth that heat load to the engine block side of the system resulting in a net loss in roughly 50 horsepower worth of heat rejection while pulling a grade. There may be some finite details were you can improve the efficiency . Still going to come out to a net loss unless you're only using it in the drag strip Manor to temporarily relocate Heat
When your over wrenching TECH
I meant become a teacher. Your students would be given lessons that would enable them to succeed beyond there dreams. Thank you for your video's.
Wow
What could happen if u ran a heavy duty diesel engine with no pressure in radiator this engine doesn't not work hard very often
Actually I have to argue with the diesel engines needing a liquid cooling system to make power check out European tatra trucks and diesel engines they make just as much power as a contemporary cummins or paccar while being air cooled
I really enjoy how you're presenting educational information for us lamen. Breaking things down in a way that's easy to underatand. Well done.
This video was so informative!! Thank you so much for taking the time to create this. I learned so much
Oh my gosh. Just do a normal video. All the open ended questions and buildup is so annoying.
Very through and easy to understand! Thanks, josh.
When are you going to finish series. I am ebbing this content
Hey Josh I absolutely love your educational/informative videos! I am one of the Think Big apprentice's going through school right now and we are taking a engine fundamentals class. Your videos fill in everything that we missed in class and reinforce what we've learned. I share your videos with my class mates and it seems to really us all out. Thank you for taking the time to share your knowledge with us, there are a lot of good educational videos out there but not too many that specialize with Caterpillar like you do. Keep up the great work man, you're most certainly appreciated!
dude absolutely amazing video
Hey Josh congrats we’ve passed 100k subs together mate slow but sure
There are Deutz tractors that are air cooled as well.
They are really cool tractors.
Ive worked on 3cylinder deutz powering air compressors a lot
Safran also produces an air cooled aircraft diesel engine.
Best wishes
Is this the end of the 101 series?
What I always wondered is why we even need a separate coolant as opposed to using engine oil for the task of cooling the engine.
Look up BMW motorcycle engines. A few where oil cooled, as well as Harley, oil and water cooled.
Its not strictly necessary, but there are many reasons such as overall maintenance costs and the temperatures ran in different systems.
John Rickard: the first hart parr and (some other prairie tractors) were oil cooled but they just have oil in the cooling system and no water. It worked pretty good except it took 50 gallons of oil and was extremely heavy
I see people using the wrong coolant weekly. The ELC used in gasoline engines is the wrong coolant
I feel like, at some point, someone complained about overheating on a hill in 110 degree weather.
you are the best I would like t know how you do a timing speed calibration
Need a probe n cat et to perform. Fairly simple once you have those
You don't want to buy the tooling. Also if you break the probe off you have to remove the oil pan sometimes. Better to let someone else take the risk.
Thank you so much for taking out your time n making these educating video. I own a truck n it give me alots alots of problems, so I decided to start school n do diesel mechanic. I knew few things about engine too I was confident n thn I started seeing your videos n it helped me soo much n I feel like I already freaking graduated 🎓 lol thank you so much! God bless you 🙏
great job your videos really help me to understand more about diesel engines
Another great explanation Josh, thank you.
Excellent Excellent video on the coolant system
I drove Cats, Cummins, and Detroits, as well as on 500 Mack in the 80s and 90s. 1.5 millionish miles. Back in the day, the "normal" water temp was 180. Fan would come on at 195 or 200. If the water temp got to 210 it was considered "hot". Fast forward to present day. I had a '14 Ecodiesel. Normal water temp seemed to be upwards of 210-230. Oil temp on a grade was 260ish. I'm sure the big trucks are the same now? I am also sure that these higher temps promote better combustion and therefore better fuel efficiency. Interesting how things change. Is the higher and higher "normal" water and oil temps a result of gradually realizing that they aren't actually harmful? Or have the block and head and piston materials been changed so they tolerate the higher temps?
Truck temp normal has been 190-195 for decades, aftermarket thermostats are frequently 180. Cats the fan comes on at 217 and shuts off when it gets down to 204. The Detroits and Cummins ive drove all sat in the same temp area, and that was over 30 trucks ranging from late 80s to 2019s. Slip seat local job, didnt get to know the specifics like I do my 90s cats so can't give exact temps. Funny how knowing the exact data is more important when you own the truck lol
What can go wrong with the water pump to cause overheating besides leaking?
Low pressure can cause cavitation that damages the pump vanes
Where does the "water conducts heat 25x more than air" come from? I thought it was 4.2ish times better
Nevermind, Google gave me the answer 😎
Excellent series