Imagine training to be a mechanic under Dave. You would learn really fast, really well and would enjoy every minute of it. Keep the great content going Dave.
Amazing the amount of knowledge and experience this guys has. Probably been doing this job for 20 years and only had an incident like that once before and already knew what it was. I know to always verify as well.
@@MrBrettrx740 years is a good lifetime. My grandfather was a mechanic in a military at 18 and still hasn't died. Man is 74 and has been right about every damn diag he's ever made for me. From suspension on Hondas to electrical issues on my Chevy truck. He's always been right.
It takes more than 20yrs to gain his knowledge...his shop is gonna charge you top dollar for repairs but the work will be warrantied and honest which beats any cheap shop or backyard mechanic
Earlier this year I sold my '12 3500 with a 6.7. It had 640,000 miles, the original engine (as far as I could tell from the detailed maint history) and it had ZERO blow by. I thought I was checking it wrong, but with the same oil fill cap test (and a new CCV filter) there wasn't even enough blow by to move a piece of paper. I owned it for six years and the reliability of that truck blew me away.
@edmondlau511 I bought it with 590k... the previous owners used it to deliver new/empty trailers across the country, so I suppose it was operated under ideal conditions (I drove it stop & go in town quite a bit but I tried to change oil early to compensate...)
@@tannerbean3801at least those miles are easier miles than stop and go. I never quite understood why people are so afraid of putting mileage in their vehicles. They don’t seem to understand highway miles are like jogging at a steady pace and much easier on a vehicle than putting miles on in 1/4 mile increments.
This guy's hands reminded me of a man I worked with many years ago. The company I worked for used a lot of different solvents in manufacturing. Every evening at the end of the dayl he would take some of the highly refined oil we used to clean and restore the oil in his skin that the solvents removed. At the end of the day his hands looked as clean and soft as his do. Not saying that's smart but he never had cracked hands.
Wow! I have 2001 Jaguar XK8 that has jump timing. They say I need a motor because it’s a interpret engine I think. I believe you can fix it. 🧐. Leonard
Even if an injector goes out of spec you still need to push an engine super hard to do that!…also by the looks of that top end, I would say the owner has a problem with changing the oil…
No I drove a cat truck and kept telling the mechanic at the City something wrong they ignored it then it burn a gallon of oil a day and finally 3 gals of oil a day before she puked only took 4 days to burn a hole in the piston
Clearly a faulty injector wasn’t the problem in your case…the video is about a faulty injector burning a hole in a piston…your issue was caused by some other catastrophic failure. 3 gallons of missing oil will show up somewhere, whether it’s in smoke or puking out on the ground. I saw a Mercedes MBE4000 do the same thing and the owner ran it till the oil was puking out everywhere and it finally hydro locked and blew a hole through the side of the engine…
@@anthonymakley1530 and you can continue working for the city blowing engines up…at what point were you going to stop driving the truck in regards to oil consumption?…4 gallons?…5 gallons of oil a day?…or are you just that guy that says “I’m just a truck driver and I do what I’m told”?…clearly there is more to the story than what you let on…and again…the video is talking about a failed injector…not excessive oil consumption…your argument about your case is an exercise in futility…excessive oil consumption can cause multiple types of engine failure including burnt pistons…but this case specifically references a failed injector so let’s stay on subject!
@@MrMan5014 was told to continue driving it if that wasn’t bad enough they replaced with a reman engine with a 90 warranty they didn’t put it in until 6 months later and that 1 blew up on another driver after 1 day. I’ve been driving trucks since I was 16 after 50 year I can pretty much tell what an engine is doing or truck
I had nice looking late 80’s something Chrysler that was huffing and puffing through the radiator. My cousin, who’s a mechanic told me I had turbo “blow by”. That car had all the bells and whistles, it was clean, but the motor was shot to hell
I've been watching these reels for a year now and I found out this guy's shop is only an hour from me! I would love to get my truck in there someday. It's an 2010 Ford F250 6.4 with massive leaking oil and blowby 😂. Just gotta save money. Work this good isn't gonna be affordable. But definitely worth it in the end
I would love to work with guys like this for a day, probably learn more in one day from this guy then 3 an half years at a tech for automotive.I just couldn't translate from a book to hands on.
I mixed up rods to rocker orientation when I rebuilt my Duramax, maybe they’re a different design but after you lash your valves they’d all be sitting very close to the same specs. Could be wrong
Not trying to defend this guy because I’m thinking he’s a hack too, but mixing up pushrods, rockers and lifters will only cause issues if they’re worn. If they’re in good shape there’s really not a lot of measurable difference between them. I think this is just kind of an old wives tale at this point. 70-80 years ago when machining tolerances weren’t so hot on engines it probably mattered because once they wore in there was probably a difference between the sets but today each part is made pretty near identical. I’ve been a mechanic a long time as well as a part dealer and I just don’t see any difference between them, again, on non worn parts. But in all reality if a lifter or pushrod has wear and you aren’t replacing it I don’t know what to tell you.
@@johnsmith9784 Recommended disassembly procedure I said, nobody said it was a law or that anything will come of it, you can tighten a head gasket with just a wrench and get away with it but it's recommended to use a torque wrench, professional mechanics are paid to follow the manufacturers directions ( to a large degree) not just try to get away with doing it by guesswork. What someone does to their own car is entirely up to them nobody cares how they choose to do something, if you take it to a professional mechanic you expect the work to be carried out as intended by the manufacture (within reason, sometimes they're wrong and the mechanics experience will override the directions).
It honestly doest matter, I redid my heads on my 01 f150 4.6, mixed everything up and threw it in a box, put everything back together and drove another 200,000 miles. My ford Taurus, pulled the heads off to replace a head gasket, mixed them all up and threw them in a box, fixed it and drove it another 120,000 miles until the transmission went out and sold it.
I’ve got a 5.9 Cummins same scenario that burned a piston and now need to rebuild. Considering passing up the other guys and coming on up to Centerville.
I'd subscribe again if I could. That's incredible. I'm not heavy into diesels, but I would've only really attributed that to rings or something for the blow by. Experience is everything.
I did that years ago to my 1971 Arctic Cat 340 EXT. It was one of those 10 below zero nights and I leaned out my carburetors too much. Burned a hole right through a Wiseco chrome head. But, wow, did it go!
I run a tank of fuel with Lucas injector cleaner added to it every time I change the oil. Seems to work well on my Peterbuilt, also in the past on my Freightliner.
Amsoil Diesel fuel supplements are far better than Lucas you need to check them out. My Cummins runs way better 40% less regens there two formulations Amsoil All In One for the cold winter months and Amsoil injector clean + cetane boost. Then I add lil extra cetane boost because on average Diesel in America is about 40 to 45 and at least with Cummins there designed to run optimal at 50 to 55.
fuel wash, also known as cylinder wash. A fresh coat of oil protects the cylinder walls and bearings from metal on metal contact, If that protective layer of oil washes off, it becomes susceptible to damage. Raw fuel is one thing that can wash off the cylinder's protective coat
Learning not to buy diesel or direct injection german cars. Great channel providing invaluable knowledge what to stay away from. My wallet thanks you sir
It’s amazing to me that these engines will keep running with such extensive damage. I know they don’t run well but for all an engines complexity and delicacy they are also just brutes.
There’s a crack in the piston. could that have happened before or after the hole. I’d venture a guess that it could be the cause of the hole. Could very well be a rogue injector idk. As alway great content. Always interesting.!
Got that right. It's getting to a point where even basic engine swaps aren't being done anymore from shops without constant return trips to fix things that are overlooked or done without any care or sense of standards. I wish we had a shop like this one where I am. I'd give anything to have access to this guy.
I don't know about anybody else but I see a crack going from that hole all the way to the edge of the piston crown in the last scene after he moves his finger. A burn hole wouldn't cause that more likely a metallic object. Perhaps it also damaged the injector and made the injector start spraying more if it lost its check valves and mechanism.
It is extremely difficult for a well respected manufacturer to engineer-in early failure. GM pioneered this process and most other American manufacturers joined in. Obviously Cummins knows how to make long, long-lasting engines. But therein lies the problem that GM identified early on - force the customer to buy another, but attempt to make it last just barely beyond warranty. For a diesel to last 100k miles is a feat of engineering prowess to be marveled at.
Same thing happened to my ford transit work van. Install of just replacing the piston's and the injector's. They just stuck a new engine in. But that's main dealer's for ya.
One thing I like about diesels is they have their camshafts where God intended..in the block. Any OHC engine does not belong in a vehicle that calls itself a truck.
The puffing frequency pretty much proved it was a blown piston. A temperature check of the exhaust stubs with the one showing cold would have added more evidence. Last of all a compression test to ice the cake.
This is what happens when the crowd starts chanting USA USA! And you start to roll the coal to lay a burnout! And it’s a race to get home so you don’t miss wrestling! And dam ! Hole in the piston!
That injector that went rogue needs to be prosecuted and charged😂
According... 😂
Oh don’t worry, the shops gonna charge to the fullest extent of the cards limit????
@@jlee7063 😆😆facts
@@jlee7063Hey, good work ain't cheap, cheap work ain't good
As the DA of this case I can say we are asking for life without a rebuild for that injector
Old school guys can always explain things so well. The world needs more mentors like that
Experience
I would love to go spend some time working with these guys to improve my skills! I'd do it for free!! 😂
Imagine training to be a mechanic under Dave. You would learn really fast, really well and would enjoy every minute of it. Keep the great content going Dave.
Imagine being a Pakistani man who just fixed one with nothing but a angle grinder and a old ark welder 😂😂
Dave will live on through these videos. AI will one day watch all these videos and become a virtual Dave to live on forever
@@stant7122 Dave is eternal.
this is the kind of shop you want to put your car into and know it's getting done right...
Master mechanic. Love you vids brother. Super interesting
The way this man explains things, you can just tell how much he loves his job. Ole Huff ‘N Puff
Ten points to huff and puff!
Nice to see a real real mechanic I worked in a trade for 25 years used to love working on cars😊😊❤ disabled now 🙃 😊❤
Que le pasó amigo?
Old school techs before 2000s ROCK!!
Amazing the amount of knowledge and experience this guys has. Probably been doing this job for 20 years and only had an incident like that once before and already knew what it was.
I know to always verify as well.
I even remember him saying he’s been in it for something close to 40 years
@@MrBrettrx740 years is a good lifetime. My grandfather was a mechanic in a military at 18 and still hasn't died. Man is 74 and has been right about every damn diag he's ever made for me. From suspension on Hondas to electrical issues on my Chevy truck. He's always been right.
It takes more than 20yrs to gain his knowledge...his shop is gonna charge you top dollar for repairs but the work will be warrantied and honest which beats any cheap shop or backyard mechanic
You think they've only seen one hole burnt in a piston from a failed injector? It's always cylinder 6 on a Cummins. This is what they do.
Your company is simply the best..I like watching
This is why I love the ISB5.9. My favorite post emissions medium duty diesel engine is the HINO J08E 7.3L inline 6 turbo diesel.
Buddy of mine had one that did that he called it Puffs the not-so Magic Dragon
Earlier this year I sold my '12 3500 with a 6.7. It had 640,000 miles, the original engine (as far as I could tell from the detailed maint history) and it had ZERO blow by. I thought I was checking it wrong, but with the same oil fill cap test (and a new CCV filter) there wasn't even enough blow by to move a piece of paper. I owned it for six years and the reliability of that truck blew me away.
Working on shops it Was not uncommon to see ram trucks with crazy high miles 400k-800k that were still great work trucks for their owners.
How many miles when you bought it? You must have been pretty regimented with the maintenance
@edmondlau511 I bought it with 590k... the previous owners used it to deliver new/empty trailers across the country, so I suppose it was operated under ideal conditions (I drove it stop & go in town quite a bit but I tried to change oil early to compensate...)
@@tannerbean3801at least those miles are easier miles than stop and go. I never quite understood why people are so afraid of putting mileage in their vehicles. They don’t seem to understand highway miles are like jogging at a steady pace and much easier on a vehicle than putting miles on in 1/4 mile increments.
Wow, that's great mileage! I have a '12 4500 with 6.7 and only 220,000 miles. Good to know I can get many more miles with good maintenance.
Love your vids. Please keep up the good work.
Common rail don't mess around.
This guy's hands reminded me of a man I worked with many years ago. The company I worked for used a lot of different solvents in manufacturing. Every evening at the end of the dayl he would take some of the highly refined oil we used to clean and restore the oil in his skin that the solvents removed. At the end of the day his hands looked as clean and soft as his do. Not saying that's smart but he never had cracked hands.
Awesome diagnosis sir !
Wow! I have 2001 Jaguar XK8 that has jump timing. They say I need a motor because it’s a interpret engine I think. I believe you can fix it. 🧐. Leonard
That's funny I'm watching this video and wondering why the oil cap on my 2005 jaguar xk8 does the same thing
Interference motor. It means if the timing chain or belt jumps or breaks, the pistons can slam into the valves because they are stuck open.
Been building motors since I was 14 never seen that!! But I havnt done many diesels..
I’m glad you detail your evidence. True experience.
I watched quite a few videos from the guy he his the bill ni the science guy of what he does
Even if an injector goes out of spec you still need to push an engine super hard to do that!…also by the looks of that top end, I would say the owner has a problem with changing the oil…
No I drove a cat truck and kept telling the mechanic at the City something wrong they ignored it then it burn a gallon of oil a day and finally 3 gals of oil a day before she puked only took 4 days to burn a hole in the piston
Clearly a faulty injector wasn’t the problem in your case…the video is about a faulty injector burning a hole in a piston…your issue was caused by some other catastrophic failure. 3 gallons of missing oil will show up somewhere, whether it’s in smoke or puking out on the ground. I saw a Mercedes MBE4000 do the same thing and the owner ran it till the oil was puking out everywhere and it finally hydro locked and blew a hole through the side of the engine…
@@MrMan5014 you could work for city as mechanic
@@anthonymakley1530 and you can continue working for the city blowing engines up…at what point were you going to stop driving the truck in regards to oil consumption?…4 gallons?…5 gallons of oil a day?…or are you just that guy that says “I’m just a truck driver and I do what I’m told”?…clearly there is more to the story than what you let on…and again…the video is talking about a failed injector…not excessive oil consumption…your argument about your case is an exercise in futility…excessive oil consumption can cause multiple types of engine failure including burnt pistons…but this case specifically references a failed injector so let’s stay on subject!
@@MrMan5014 was told to continue driving it if that wasn’t bad enough they replaced with a reman engine with a 90 warranty they didn’t put it in until 6 months later and that 1 blew up on another driver after 1 day. I’ve been driving trucks since I was 16 after 50 year I can pretty much tell what an engine is doing or truck
I had nice looking late 80’s something Chrysler that was huffing and puffing through the radiator. My cousin, who’s a mechanic told me I had turbo “blow by”. That car had all the bells and whistles, it was clean, but the motor was shot to hell
I've been watching these reels for a year now and I found out this guy's shop is only an hour from me!
I would love to get my truck in there someday. It's an 2010 Ford F250 6.4 with massive leaking oil and blowby 😂.
Just gotta save money. Work this good isn't gonna be affordable. But definitely worth it in the end
I would love to work with guys like this for a day, probably learn more in one day from this guy then 3 an half years at a tech for automotive.I just couldn't translate from a book to hands on.
Good to see you follow the recommended disassembly procedure and just mix up all the rockers and rods.
I mixed up rods to rocker orientation when I rebuilt my Duramax, maybe they’re a different design but after you lash your valves they’d all be sitting very close to the same specs. Could be wrong
Not trying to defend this guy because I’m thinking he’s a hack too, but mixing up pushrods, rockers and lifters will only cause issues if they’re worn. If they’re in good shape there’s really not a lot of measurable difference between them.
I think this is just kind of an old wives tale at this point. 70-80 years ago when machining tolerances weren’t so hot on engines it probably mattered because once they wore in there was probably a difference between the sets but today each part is made pretty near identical.
I’ve been a mechanic a long time as well as a part dealer and I just don’t see any difference between them, again, on non worn parts. But in all reality if a lifter or pushrod has wear and you aren’t replacing it I don’t know what to tell you.
@@johnsmith9784 Recommended disassembly procedure I said, nobody said it was a law or that anything will come of it, you can tighten a head gasket with just a wrench and get away with it but it's recommended to use a torque wrench, professional mechanics are paid to follow the manufacturers directions ( to a large degree) not just try to get away with doing it by guesswork. What someone does to their own car is entirely up to them nobody cares how they choose to do something, if you take it to a professional mechanic you expect the work to be carried out as intended by the manufacture (within reason, sometimes they're wrong and the mechanics experience will override the directions).
@@ernsailor9041it doesn't make a difference. you're just desperate to criticise someone to make yourself look good.
It honestly doest matter, I redid my heads on my 01 f150 4.6, mixed everything up and threw it in a box, put everything back together and drove another 200,000 miles. My ford Taurus, pulled the heads off to replace a head gasket, mixed them all up and threw them in a box, fixed it and drove it another 120,000 miles until the transmission went out and sold it.
Wow! That’s not blow by, that’s blow through! Holy crap.
I'm not really into cars but ever since I started watching you, it has caught my attention, good work and content with high value, keep it up!
I’ve got a 5.9 Cummins same scenario that burned a piston and now need to rebuild. Considering passing up the other guys and coming on up to Centerville.
Hope someone in that shop looks up to this guy and get all that KNOWLEDGE from this Old school Master . 💪
I think pulling the engines out is the best way to do the job like these guys do. You can also replace the hard to get to are parts that are worn out
We ran the 855 NH series millions and millions of miles and never had problems like these motors have.
Smart man, with the knowledge and experience he can usually call out the problem before even taking it apart !👍🏼😁
The knowledge you have is amazing and your so willing to share it . 😊
I am a Nigerian Technician (Mechanic). I plan to one day work at your place. Thank You Sir.
Love your work habit.
No. Nigerian prince.
I'd subscribe again if I could. That's incredible. I'm not heavy into diesels, but I would've only really attributed that to rings or something for the blow by. Experience is everything.
Cool video!
The world needs more people like you sir.
Hey my maste thanks so much for or the videos
You sure do know your stuff Dave I love watching your videos
I did that years ago to my 1971 Arctic Cat 340 EXT. It was one of those 10 below zero nights and I leaned out my carburetors too much. Burned a hole right through a Wiseco chrome head. But, wow, did it go!
I run a tank of fuel with Lucas injector cleaner added to it every time I change the oil. Seems to work well on my Peterbuilt, also in the past on my Freightliner.
Amsoil Diesel fuel supplements are far better than Lucas you need to check them out. My Cummins runs way better 40% less regens there two formulations Amsoil All In One for the cold winter months and Amsoil injector clean + cetane boost. Then I add lil extra cetane boost because on average Diesel in America is about 40 to 45 and at least with Cummins there designed to run optimal at 50 to 55.
Damn Dave ! I learn from you every video! A+ quality! Man this guy predicts things as good as Joe Rogan! Ultra MAGA 2024
That is a huge engine. Excellent job.
Love yr comentry Dave👍👍👍👍👍👍👍👍👍👍
Dave you're a real one 👏 👌 💯
The more I watch this channel. The more I've come to the conclusion he's a very good and busy hack.
fuel wash, also known as cylinder wash. A fresh coat of oil protects the cylinder walls and bearings from metal on metal contact, If that protective layer of oil washes off, it becomes susceptible to damage. Raw fuel is one thing that can wash off the cylinder's protective coat
Another great and very informative video. Thank you!
That’s lord huff n puff to you
Wild looking piston. Never seen that before.
New compression release for easier starting.
Learning not to buy diesel or direct injection german cars. Great channel providing invaluable knowledge what to stay away from. My wallet thanks you sir
Thats a good diagnosis great job
That high pressure fuel system is no joke
Excellent work
This is why egts need to be monitored
Dave is like a surgeon.
Love your knowledge keep going
It’s amazing to me that these engines will keep running with such extensive damage.
I know they don’t run well but for all an engines complexity and delicacy they are also just brutes.
Love this guy.
Brilliant video
When you get your show , I will buy a shirt.
gloves vs no gloves? no gloves, then a good trusty hand wash
Gloves bro. Not wearing gloves will give you painful claw hands.
@@buysncharge u live and u learn
There’s a crack in the piston.
could that have happened before or after the hole. I’d venture a guess that it could be the cause of the hole.
Could very well be a rogue injector idk.
As alway great content. Always interesting.!
That oil cap was dancing cuz it knew Dave was gonna make it better than when it was new!
The good chrome impact sockets!
If you were in Oklahoma I'd be able to put my tools up & bring my stuff to you. It's tough to find a good mechanic
Got that right. It's getting to a point where even basic engine swaps aren't being done anymore from shops without constant return trips to fix things that are overlooked or done without any care or sense of standards. I wish we had a shop like this one where I am. I'd give anything to have access to this guy.
That's knarly
My grandpa 2006 dodge ram 3500 with the 5.9 Ho Cummins has got 390,000 miles on it and no blowby
Your point is?
@@bryceswiger7844maintenance goes a long way and I’m not sure why your being a dick
That's an amazing blind diagnosis
At the car mechanic I want to bring my vehicles to he knows his stuff
Love this guy
I don't know about anybody else but I see a crack going from that hole all the way to the edge of the piston crown in the last scene after he moves his finger. A burn hole wouldn't cause that more likely a metallic object. Perhaps it also damaged the injector and made the injector start spraying more if it lost its check valves and mechanism.
Same thing happened on my 5.9 luckily extended warranty paid for a new crate motor
It is extremely difficult for a well respected manufacturer to engineer-in early failure. GM pioneered this process and most other American manufacturers joined in. Obviously Cummins knows how to make long, long-lasting engines. But therein lies the problem that GM identified early on - force the customer to buy another, but attempt to make it last just barely beyond warranty. For a diesel to last 100k miles is a feat of engineering prowess to be marveled at.
Same thing happened to my ford transit work van. Install of just replacing the piston's and the injector's. They just stuck a new engine in.
But that's main dealer's for ya.
Gotta love when people act like cummins are just so indestructible compared to the other two diesels. 😂
This guy is like the "House" of diesel engines.
I like that Dave it reminds me of Hogwarts With Harry Potter
Working for men like this is like going to school and getting paid for it ..priceless
So much for keeping parts in order of where they came from
That’s actually pretty amazing. I know it’s a financial burden to the owner, but it’s still pretty cool.
One thing I like about diesels is they have their camshafts where God intended..in the block. Any OHC engine does not belong in a vehicle that calls itself a truck.
Lot smoke, really good 😊
The puffing frequency pretty much proved it was a blown piston. A temperature check of the exhaust stubs with the one showing cold would have added more evidence. Last of all a compression test to ice the cake.
A lot of blow by is an understatement.😅
That hurts. Good call on huff and puff
Everyone praising the Cummins engine but that's the engine we see most in your shop. Am I missing something ?
Seems every vehicle gets a nickname. Lol
They’re lucky that thing didn’t run away drinking the crankcase oil
That cyl was pushing air into crankcase, not scavenging it.
That’s a like and subscribe from me mate 👍
Wow that suuuucks! Great job.
Hey Dave! Tell your technician that you’re not supposed to use CHROME sockets on impacts! (Just giving him hell) 😃
A lil JB Weld and is good as new...😉
That hole definitely make blowby
It's nice to work on tractor engines that give no shits what pushrods go where. Just pull um out and chuck em in a pile!
Couldnt scope it through the spark plug hole 😂😂😂😂
nice joke😂
Shh Dave burning midnight oil, most shops can’t get 350 Chevys out
This is what happens when the crowd starts chanting USA USA! And you start to roll the coal to lay a burnout! And it’s a race to get home so you don’t miss wrestling! And dam ! Hole in the piston!
You’ve seen before and you called it 🍻
How does he keep his nails so clean?
Probably uses goop, orange clean, and a fingernail brush. Shower with shampoo does a great job of cleaning nails too.