I know you have a life to live off of KZfaq, but I agree with everyone else and wish you made more videos. These videos and your channel as a whole are incredible. Love the content. Thanks for giving us what time you do have.

No fluff, no click bait, no BS. Straight to the point.Appreciate everything you share. Thanks.

KT in my 45 years of trucking and the last 40 years owning cats you are by far the most knowledgeable cat engine man I have come across. Top shelf, sir.

"You don't want any of that junk those 4th graders over at Cummins designed"😂

My man, back at it! There is something special about this channel right here, nothing quite like it on youtube.

the metallic slurry in the engine is alumaseal

One of the rare few channels I'm both excited to see a new upload, and watch the entire video through. No bullshit, very ready to explain things to a non-heavy equipment person, and relaxed. Thanks for taking all the extra time during teardowns to explain things AND film...it doesn't go appreciated.

This channel is an inspiration man, got me to apply at the yancey near my home so I can start learning about these awesome engines. I start Monday and can’t wait to see what it’s all about to work on big diesels. Like everyone else I love the videos and are thankful the videos you do post when you have time. Much respect to you bossman 💪🏻👍🏻

This man has forgotten more knowledge about diesel engines or equipment than I have acquired in 42yrs. My wife and I love watching your videos and gaining your knowledge and know-how. Lifetime subscriber here

The shot of that strap holding the engine gave me a chuckle

That crap in cooling system I believe is a stop leak product. I have seen it before in a few cars with a blown head gasket or cracked block . I could be wrong ,but that is what it looks like to me. Cool channel and thanks for the upload..

You would make an excellent instructor for diesel mechanics. Your videos are so informative and inspiring!

As a man who’s re-pinned an ecm (thanks Cummins!), and changed a manual to an auto in that same truck, your knowledge of all systems including electrical is impressive. I can’t say I enjoy doing this type of work, yet I can’t not watch your videos. You’re a great teacher, even if you don’t wanna be. Safety 3rd! 👍

Looks like a radiator leak that was fixed with magic powder, but it also lost cooling fluid and was run with straight water for a while

I'm from Jamaica and i watch these videos as i consider this gentleman as a professor in Cat and diesel engines, very brilliant

For a guy that doesn't know squat about these engines, this was an extremely informative video. You're an intelligent young man, KT!

I'm a retired heavy equipment mechanic. I have a part time job helping a buddy out in his radiator repair shop. The crap that people put into their radiators to "try" to stop the leaks, oh man the junk they use. Radman in a can we call it. Just keep dumping it in until it plugs something up, maybe the leaking rad, maybe not. Always fun to gather around and try to figure it out. We do lots of logging equipment, the old time loggers and some of the fixes they use. Eggs, black pepper, what ever wonder cure the local auto store has on the shelf.

I always get excited about a new KT3406E video.

I feel like I should apply for college class credit after that. Thank You. Please at some point in your life if you haven't already teach at a vocational school or a Cat diesel engine school. The amount of knowledge you can pass on to others is amazing. I think it would give you joy as well as you seem to enjoy walking us through the engines you tear apart. . Thank You, Thank You.

Greatly appreciate the knowledge you share.

4th graders at Cummins 😂😂😂 I spit my beer out when you said that!

Please do not stop with the videos you are a great teacher and in my judgement a greater person thank you for your time to do this for all the diesel motor head's

I love the no B/S attitude you have and tell it like it is! I don’t even know anything about diesel engines and I enjoy watching your videos! I reckon if you and I lived in the same town here in Australia, that we’d be good friends!👍

As so many have said, these are the best videos to watch if you grew up on a farm like me, are a trucker, a mechanic, or just enjoy listening to an expert in their field. CAT should pay you as a consultant in product manufacturing, engineering, and sales. Thank you for sharing and please continue to make more. God bless you man.

You are truly the Professor of Caterpillar, with a well earned honorary PhD on the subject. You make this material so interesting and understandable. Thank you.

I'm honestly impressed with how clean that was running for not having the compound turbo setup connected to the intake. Even when you were revving it, it was still blowing pretty clean.

The best parts of your video is first of all your language pretty clean. You know how to speak with a proper sentence in English which is a joy. You don't treat your viewers like idiots but act like a teacher that shows us things that we would like to know. I loved learning about the compound turbo setup. I do not work on diesel engines but I thought that was pretty cool. I watch plenty of your videos and enjoy each one. You seem very knowledgeable very down-to-earth and definitely a caterpillar product enthusiast .I can tell you as a truck driver for 10 years I don't blame you I never really got to drive a cat most of my stuff was Cummins or Detroit. When the 600 horsepower truck went by with a straight stack cat you just sat they're n a w e and enjoyed the sound

…you most certainly know your story about these machines KT : a real pleasure to observe from a distance. Keep it up. In a mediocre world you shift boundaries of excellence effortlessly, and it makes mark. Thanks stacks ex ZA. Great stuff…👊🔥

Always learn something from you KT and that's appreciated. Thanks for inviting us along

This man seriously does not know what a legend he is in the diesel world. And did you say 1850 lb/ft at 1200 rpm? Christ!

Damn I wish you made more videos!!

All your videos are great man, keep em coming.

I just recently found your channel and it's one of my favorites. Your knowledge and sense of humor is great. Keep it up. I honestly love your channel.

Thank you for going through the trouble of sharing this with us 🙏

Your knowledge is just miles deep...I learn so much! Keep it up

Aside from the liners I imagine the block is still good. Thanks for sharing. I enjoy learning a bit from your adventures.

Kt I have learned a lot just watching and listening to you . Keep up the videos

Every time I watch one of Your videos I always seem to learn something new! I really appreciate everything that You do here on KZfaq! I have never seen anyone that is as knowledgeable as you are with these Cat engines! I have a lot of respect for You and Your meticulous craftsmanship.Thanks for sharing this cool stuff with us all. Keep up the great work and stay safe out there.🙏🏻👍

Thank you for your content. Always looking forward to your next video

Thank you for another top tier video. Your commentary in regards the situation with the engine was excellent - thank you again!

Hands down the best diesel mechanic on KZfaq! Thanks for the great content. 👍

Well I for one, did NOT expect it to fire right off as soon as it got good cranking power. Very surprising revival, well done!

Your knowledge on these cats is incredible love your vids

Everything that I know about giant diesel engines, I know from watching you. Got to be my favorite channel on this site. Very entertaining videos

Another fascinating video good sir 👌🏻, many thanks for sharing with us the tear down process of this engine and pinpointing what was the issues with it. A truly awesome channel this is 👍🏻

Its always a great day to see you have posted a new vidya , and just like you said about zip ties and bias plies , i dont know how ive made it this far in life without your channel !! Thanks for your knowledge and time !!

Hey KT, Jamie here from Newcastle Australia, excellent video Sir, Cat gear is my weapon of choice, but as far as the Acert Compound Turbo versions I didn't know a lot about, well your video here has hit the spot, great content, and as a lot have said, there is no limit to your videos, they are truly very good, we'll all look forward to the next one, maybe some more C15 performance stuff would be great. Thanks again, cheers from Australia 🤝🇺🇸🇭🇲👍

A New Posting .. feels like Xmas

My eye definitely twitched a little with the condition of that web belt lol. On the flip side, I've tested belts in worse shape that still made the 5:1 safety factor they build those to before breaking. Excellent video. Loved seeing that motor turn over.

I know nothing about diesel engines nor have I ever owned one or plan to own one, but i watch all of your videos and have learned a ton! Please keep making them. Thank you for all you do.

Always learning something with your uploads.

I'd almost put that metalic sludge in the cooling system to be a water pump failure. you did mention that it has a new water pump so i would say most likely the old pump had started prematurily failing due to maybe incorrect coolant. Keep up the videos, always fun to see this kind of content.

Great explanation of the compound portion of the video.

You are a great teacher for those watching and learning! 😎

I just did a brand new cylinder head on 07 Cummins. Still blowing out coolant tank when hot. Pretty sure he cracked the block, drove it 10 miles highway speed no coolant. Started coolant elbow on fire on top of head.

Man knows his way round a big diesel engine. Top content as always 👍

Thanks for filming and uploading . I'm not a mechanic or owner/driver but I pick up what you put down . Cat should give you those goodies for all the advertising you do for them.

Man seeing that exposed turbo made me all giggle. Love your straight to-the-point videos KT, subbed.

Thank you for your time to put out these videos

That is some cool stuff man, thanks for sharing with us! Stay safe my friend.

I want that CAT chair 😂 ok it’s yours 😂

Your a smart man love watching you I have rebuilt quite a few c15 Cats and you have shown me a few things I should do and to look for Thanks

Great video thank you for sharing your expertise.I was a 2 cycle detroit diesel mechanic many years ago.

Buys hundreds of thousand of dollars in parts… gets a free chair 😂

Love the content. My friend has one of your motors in his Pete. Definitely a beast of a motor.

I am excited to see all your videos. I clearly see that you won’t show crap on your channel. I appreciate that. You are a very gifted man. I am amazed at your knowledge. Thank you for sharing you career. Best wishes.

Hey buddy I love your work, I know nothing about diesel engines, but your knowledge is wonderful and I like watching you work, thank you so much

love all your content...keep it coming please!!!

Definitely a good teacher

Different than some of your recent content, enjoyed it. Thanks for sharing.

Good example as to why you should run the right coolant and testing it regularly. Unbelievable how quickly cavitation wrecked those liners. Great video

Don’t ever change man.

Sir - your commentary gave me the hardest laugh’s I’ve had in a while!!!, your very methodical and neat while you work, I appreciate that.

Very happy you are back at it. Enjoy all your videos. Thanks

The man still lives! I would also like to comment with everyone and say thank you for your time producing these in your spare time. I personally miss the video where you talk through all the progressions of the 3406 then go hauling stone. Anyways thank you!

Thank you for your videos, always learn a lot! Can you make one showing your wiring/cable building process?

Fascinating and educational!

I love your videos, i always learn so much. Keep it up man!

just plain entertaining. keep them coming

That metallic shit is a type of block and radiator sealant... I've pulled a few apart that looked like that after they pored the radiator dull of that junk, and it can cause electrolysis and tear the sleeves and even the block up under the right circumstances brother

I’ve driven diesel trucks the majority of my life I’m retired now but man I learn so much watching your channel so thank you very much.

Appreciate the Cat knowledge and the Detroit slaying ( and I like stroker Detroits ). Keep up the good work.

Can confirm that's exactly what happens when you run straight water or damn close to it.

I stumbled across your vidoes and was instantly impressed with the quality of your work, presentation, narration, and content. I have to say you are extremely lucky to have that shop, the tools, and knowledge to be able to do what you do. I would sau you live up to the saying if you do what you love you never have to work a day in your life. Id say you fit that script for sure

Good to see ya making stuff, it's quality I'm sure we can wait.

You are fantastic! How do you know all those numbers by heart? We enjoy your videos!

Could that crumbly crap in the cooling system be some kind of stop leak?

One of the best video creators out there, so knowledgeable!!!!

Agreed, thanks for your service to us hospice nurses driving around, watching your videos between patients.

i would assume the inside of the radiator was corroding out and contaminating the coolant system with all that fine particle grit . not sure but yet another great vid KT thanks!!!!

Awesome just made my evening buddy great video hope you’re having a great day thanks for sharing You think that fury metallic stuff is some kind of stop leak for coolant

I am gonna buy an old truck soon, thanks for breakdown of the diesels!

I sincerely thank you for so freely sharing your impressive wealth of knowledge.

The mess inside that thing is some form of stop leak, or multiple brands mixed together. Ive seen the fuzzy stuff plug up heater cores solid, and you can't pour the coolant through a paint strainer without plugging it either.

I bet the liners started leaking due to a lack of cavitation protection, and the person added stop leak to the radiator. That is very likely what the metallic fibers were that you found.

You make great videos. How to see you do more of them. I like the no BS attitude.

this shop is basically the center of the universe; where math and physics meet chemistry and mechanical engineering !

One of the most interesting KZfaq channels out there. No bullshit just straightforward information.

When you were cranking the engine it sounded like an old dog barking 😆 Ruuuh Ru...uuhh, ruh ruh ruhhhhh 😆😆

Wrong coolant caused cavitation which eventually caused coolant loss or pressure in the cooling system like you said. Tried to fix it with some cheap parts store stop leak that had some kind of metal suspended in it like bars liquid aluminum stop leak. That would explain the weird metallic sludge.