I also just realized how peaceful your shop is, no music blasting, very tidy and organised which says a lot about your work as well.

Its always nice to see someone building engines the right way, i like how you don't skip any steps and you aren't teaching any bad habits, build it right the first time and it will last!!!

I will probably never own an engine like this nor will I ever need to know how to work on one but I was 30 mins into this video before I realized it because I was so impressed with the knowledge and expertise of this guy. It's really neat to see someone who is so damn good at what they do and for them to be as humble as this guy is. Bravo brother impressive as hell!

gosh imagine being this young and this knowledgeable about this block. totally crazy how much this man knows

I work at the CAT reman facility in Booneville MS. Cool to see that me and a guy named Cotton dipped and packed that camshaft in your video 👍

I started watching not even paying attention to how long it is. I was 45 minutes in before I realized how glued to the screen I was. Great video!

I'm a retired automotive tech and I really enjoyed your attention to detail. You did a really beautiful job!

I wasn't expecting this guy to be so young, given his depth of knowledge. Great to see!

BEAUTIFUL ENGINE! TOP NOTCH BUILD. IN CASE ANYONE WANTS TO KNOW: The term ACERT is an abbreviation for Advance Combustion Emission Reduction Technology. This engine mainly focused on the air and fuel systems in an effort to meet the strict EPA emission requirements set in 2002.

"Here comes the safety police with their lecture that nobody cares about" This guy gets it.

Craftsmanship at it's finest. Meticulous attention to detail with a focus on the customer, longevity along with educating. A job well done. Grateful to have you demonstrating how to do a rebuild correctly and with utmost precision

One of the most impressive builds I've seen on the net... With some dry humour and honest commentary. Thank You fella... Great to listen to a proper mechanic.

Mad respect for getting that dowel out of the crank. 95% of shops would’ve drilled the fly wheel and shoved it home! That’s real workmanship sir💯

When I watch this video I feel a sense of pride in America again. That highly detailed discussion of hardware and its properties, part numbers, and practices coupled with eye-popping live action shots of precision iron and steel, sometimes in motion, moves me. Then the camera travels past the CAT maker's mark up close and personal. This is wonderful art. Thank you!

Love to see stuff like this. Young guys who are willing to take their time and give their customers the best quality the can, no matter how long it takes. Soft spoken, clean, and methodical. Love it.

This is the best tutorial I’ve ever seen the passion and dedication alone with your sense of humor makes me want to go buy a engine just for you to rebuild it

Glad I stumbled upon this video... great memories! I was a wood pattern maker apprentice at the Cat Mapleton IL foundry back in the 80's. We made the wood patterns and mock-ups that started the prototyping process for each casting part number. The wood side had 50 journeymen and 2 apprentices; it was the best, most exciting job I ever had. The pattern shop was connected to but separated from the foundry. It was well equipped, well lit, air conditioned, and quiet. Some of the journeymen served their apprenticeships right there at Cat. Others came from all over the globe and from all aspects of industry. One journeyman learned the trade during WWII while serving on a submarine tender ship in the north Atlantic! All were immensely talented. I was moved around the shop every 6 months so I could work and learn from all of the journeymen. Patterns and core boxes were made 'old school' by hand from mountains of mahogany. I remember working on the first wood patterns for the then new 3600 series engines. The V12 variant was so big it took 5 days for the casting to solidify! By the mid-80's cnc machining was coming on fast and the Cat pattern shop (and most corporation shops) was no longer viable. Being a lowly apprentice, I was first to be laid off. I finished my apprenticeship at another pattern shop specializing in aviation super castings and worked as a journeyman on castings for F-14, F-18 aircraft, and various other defense components. I heard the Cat pattern shop closed in the early 90's. I think back at my time at Cat with great pride. Your comment regarding the surface 'bug' on that engine casting made me smile: "That's just the way these castings are... they don't make these to look pretty" Did too!!! ;

"I went to the corona danger zone earlier, the local Walmart".. Lol. Absolutely loved this video and I could listen to this guy all day. Thumbs up. 👍

Seeing the freshly painted engine reminds me of when I used to work at the Lafayette Engine Center back around 2012. Was always rewarding to see the freshly painted final products.

“I wish his parents bought him a coloring book” 😂😂 that one got me

There are so many young people that could learn the value of a trade by watching this video. From machining to mechanics to shop cleanliness. Detail is permeating from every second of this video! Keep up the good work sir!

I have nothing to do with big engines and probably never will. It’s just not what I do. I clicked on this channel one day browsing on KZfaq. This guys attention to detail and knowledge is something else. Appears he works on his own doing rebuilds so he has a lot of know how. Explains things well and is very easy to understand. If you have a machine, truck or tractor with a CAT engine, this is the guy you would definitely contact for advice, repairs or what ever. I know little about what he does but I subscribed to his channel some time ago. Keep up the good work mate. Regards from a southern land 🇦🇺.

I work on commercial electronics and have been a backyard mechanic for many years. Got to help rebuild a 600CI diesel a while back. Man was that ever amazing. Every part is huge and needs huge torque. It was also so simple inside there.

You calling out the safety police just earned my subscription.

The dry, matter-of-fact way of speaking really cracks me up by this guy. Very knowledgeable and competent fellow. This is tough work and I have plenty of respect for the tech doing the work.

You know, these huge Cats that you build and repair really are just works of art. Kind of majestic in a way.

I'm not a mechanic don't want to be but watching someone that knows this stuff is amazing to me. Thanks.

It’s wonderful to finally see someone not skip the burning garbage can step of the build

*Washin parts in a trash can with ether. Whoosh. Dude you are so dead pan, and classic at the same time. Great content.*

"I've got a theory on what causes that, but I don't know for sure and I don't want to speculate" Man, I come here for the diesel stuff, but I take away deep wisdom on how to live my life like this.

I love how you take the engines apart and put the engines together along with a "here's why I did/didn't do that" explanation.

Just wanted to say your channel kicks ass. Ive learned so much about old Detroit motors thanks to you. One of my favorite sounding engines is the Cummins L10. I worked as a maintenance guy in a metal recycling yard. The boss (been there a million years) had retrofitted all the old Kohring cranes with L10s. There was one left when i started there. Never touched a diesel engine in my life and they told me to go change all the rocker box gaskets on it. I was so proud when that thing fired up and ran just like it always did when i was done.

"Competition truck"? I AM in competition on the highway every day. Aren't you? LOL!

The Detroit V engines revving hard (the right way) make me giggle like a little kid. The big Cat engines and their lower rumble makes me go “Ooohhh baby!”

All I can say is very nice job. Very clean parts, attention to detail, pre-lubrication where needed, proper torque, all clearances checked and within limits, all in all a very good build.

Tht dump truck revs like a Honda! that's kind of cool. Didn't realize diesel could rev so quick.

Damn, man, I wish I had your knowledge to be able tear into one of these. Keep the vids coming.

You're doing it all wrong, Lol! Thank you for the shout out.

I was a trucker about 10 years in the 90’s. I drove mostly freighliners with series 60 engines. Damned good diesel, the 14l I drove for jb hunt I got new and she was tough I thought about buying it from the but I had decided to quit at that point. One thing I wish I had was a big 600 cat, 18spd peterbilt. 379. It would’ve been awesome to have that experience.

Adept Ape is another good CAT mechanic to watch.

Love your attention to detail, I remember hearing all the 2 stroke Detroit powered trucks when I was a young kid. Worked on a 6v-92 powered fire truck a few years ago

"Not for use on the highway" haha as I'm cruising up a hill and a loaded Pete blasts past me.

“Steal some more of Greta’s childhood”............that killed me 😂😂😂

I am not a mechanic and have nothing to do with trucks or engines but I enjoyed the video a lot. Your expertise and skill is exceptional and take my hat off to you. It is just great to see skills like yours in action. Best wishes from Sydney Australia. It is this sort of excellence told with modesty that impressed me a lot when I was in the USA

Absolutely beautiful work. Back in 1985 I rebuilt a few different truck engines, a couple 671 and 871 Detroits, one Cat (don't remember which one) and 3 or 4 of the old 855 Cummins. Worked as a diesel truck mechanic so I did the whole thing from the customer driving into the parking lot, to the customer leaving again with a rebuilt engine, brakes, I rebuilt Transmissions, anything it needed every every Nut and Bolt. The engine shop was always my favorite though. Transforming that nasty greasy worn out old diesel engine into something shiny and brand new and then run it on the dyno and see (and hear) what I made possible. And taking Pride in doing a good job. Signing off on that engine that I rebuilt it! Turns out that I started driving truck rather than working on them but my dream was always to work in the shop I did nothing but rebuild engines. I will always regret that I never fulfill that dream. I ended up driving semi for 25 years and then became disabled just because I broke my body from the hard labor, but watching your video here brings back those memories and that desire to do that work again and really create a work of art when you take the time and the pride in doing it correctly. I love what you said about measuring the protrusion on the liners and swapping them around until you got them all within tolerance and weighing the rods and flow matching the injectors. That is going to be a sweet running engine! Just wish I could still have a hand in creating something like that. I subscribed and will be watching more.

Just about wet my pants listening to that old Pete at the end, and I’m it even a diesel guy. Pure music!

Greta’s childhood line was beautiful.

I love it how you don't have people interrupting you. God bless you and your family Aloha and amen

Best channel on the internet. Old school common sense and a little humor mixed in (33:09). Thanks KT for sharing your wealth of knowledge and expertise.

As a jdm fan, I never thought id find mystery watching a video like this, let alone the whole thing. I had a great time and learned a lot. Thanks for the laughs and information!

I feel like I am listening to Garrison Keillor at Lake Wobegon. So soothing. This guy can really tell a story about building an engine.

The oil pump install reminds me of the video “Shake hands with danger” 🤣🤣🤣 nice rebuild

"I have no idea what we needed it for but it sure is cool." What my wife hears anytime I want to buy anything.

"Just the right amount of electronics" (48:30). More like electrics than electronics. In other words, simple and reliable -- and fixable.

That build was a work of art. Thanks for demonstrating your mechanical craftsmanship.

It's nice when working on a vehicle inside an enclosed workshop during a good storm because you remind yourself at least you're not doing the work you're doing outside.

Love the build man, really appreciate the effort and time you took making this video. Thank you so much!! Im in the uk and love your work nice to see someone who really knows their stuff!

So glad I watched this video to the end. That 6V92T was worth the wait without even knowing it was coming!!!

I have never seen someone with such a wide and perfect knowledge, explaining step by step what he does and an impeccable cleaning, my congratulations brother, a mechanic tells you

VERY COOL!!! Love seeing someone, really put the time and effort into building an engine, the right way.

I just found this channel and I'm extremely impressed! This dude is badass!

I ran a drilling rig that had 2 c15’s on the rig floor running the draw works. They had straight pipe exhaust and were beasts. I also ran a rig with old 353’s on the floor. All the other rigs were electric with 398’s, 399’s, and 3516’s on the generators.

The power output of this beast gives gretta doomsberg nightmares, which oddly enough helps me sleep easy at night.

Absolutely incredible and attention to detail work!!!! Love, love, love this and the Detroit engine clip at the end.

When he started running thru them gears on that old Pete :) OMG the goose bumps LOL I miss them days

Finally! I've been so wanting to see a custom High horsepower build from you. I just heard about those big bore packs myself about 2 weeks ago. Seemed very intriguing. Love that you're going that route. Great video, I'm sure you made a lot of folks, myself included, very happy cuz we finally got to see you twisting a wrench:-)

When I was a kid I drove an International 2 stroke 18 speed double dog that sounded just like your dumper. Used the clutch for 1st only and had a ball skipping around the gears when it was empty . I am pretty sure not many kids could figure that one out today which is a shame because the thrill of driving has been removed for a very long time . Thanks for the build - whatever you get is worth every penny in my eyes.

Beautiful job, nice to see something done so honestly and properly 👍🏻.

You’re a hell of a mechanic man! Keep up the good work!

That's some torque going on those main bearings. I was waiting to hear the bolts snap.

Damn your strong I’ve never seen anyone hold a cat engine over their head like that!

Love the video. Rebuilt dozens of Cat engines (346a, 346b, 343 3406 etc…) starting in the 80’s through the 2010’s. This really takes me back. Never had good luck with IPD parts though!!!

That’s some “Nuts & Bolts” for ya! Love the attention to detail.

Lol love them 2stroke Detroit, sound like your going mach1, reality 25mph😁

I'm an old man and been a mechanic most of my adult life. You are impressive!!!

"I have no idea what we needed it for, but it sure is cool" is my new justification for everything!

I love those 2 stroke Detroits! We used to have those on our boats in the coast guard.

That was the best - est - most informative - action packed - video I've seen in a long-long time. Thank you 😀👍👌

I've gone down a youtube rabbit hole. I'm a mechanic for amazon, and I work on their conveyor equipment. I don't know anything about these big diesel engines, but they sure are cool

Send it out to ruin more of Gretta's childhood lol I'm f***** dead !! Ol peg would be proud as am I sir !!! 🤣😁

...think he should henceforth be known as the ‘US CAT Surgeon’ !!

just tuned in, what an awesome skill set young man. very good work

You became one of the best Cat and Diesel builders on the tube.

Love your attention to detail and going the extra mile on things that most would even notice.

"I wish his parents had bought him a coloring book"! HA! I did LOL on that one.......

Those old Peterbilt's sound great!

You tube is a wounderful tool in life now in learning about theses cat motors like this in every detail

3406B has just the right amount of electronics, IMO! thanks bud. That old Pete at the end is awesome, also with the perfect electronic setup. Cheers!

Love to see that new engine run

I came across this site after watching Western Truck and Tractor Repair. Talk about knowledge! Listening to him reminds me of sitting in college and listening to a professor lecture so at ease, and knowledgeable in a subject he needs no notes to refer back to. It just flows. Hell, if we had a strong apprentice type of educational system I would come be his gopher/apprentice. Thanks again for sharing your knowledge.

I’ve seen parts cleaned up, but never to a point where they look like factory new. Big amazing job you did on your preparation I’m sure when finished your assembly and fired it up thing’s ran like they were supposed to!nice video thank you.

This fellow knows what he is doing. Excellent work Sir. Thank you.

I don’t own anything Diesel powered by I’m fascinated with these engines. Cats sound nice with straight stacks.

This is the best channel on television! "here comes the safety police" I love it. I live in San Diego where you get a ticket for going to the beach during covid 19 so it's nice to see a video from America! Keep up the good work

Just came acroos this under recommended videos. I'm not even into engine work... and that was freaking awesome. You're a seriously talented tech

I like how when putting the final torque on the mains the entire engine has spun. Better you than me. Great video!

Watching you do this with the level of attention to small detail makes me wanna get into this. I work at a auto dealer as a technician and I would love to be able to take the time to be this precious. What you do is an art. Truly amazing how young yet knowledgeable you are. Tip my hat to your mentor.

I love the enthusiasm towards the “blue shit” lol

800 hp Sweet! What a beauty. 2,800 to 3,000 lb/ft of torque? That would haul the mail.

I like the precision that a chain falls give for setting. Glad to see you using one!!