5.9 L Dodge Cummins tear down inspection reveals poor machining

Dave and Joey give a master class in tear down analysis. Microscopic inspection by Trace Boss inspection equipment (a global leader in surface finish technology) exposes poorly honed cylinder walls causing excessive blow by on the top compression ring. The crankshaft was poorly ground leading to eminent bearing failure

[@JohnDoe-gm5ux]

This dude just rocks. Imagine being his son. Being able to work in this shop and learn all he knows. Priceless.

[@steveo6034]

You aint kidding!! Im going to get my CDL and ever since that decision ive become fascinated with diesel engines! This channel is awesome, Dave has a knack for explaining complicated mechanics in layman's terms.

[@carl2591]

I can be up for adoption if needed.. LOL.. priceless for sure. My dad made dentures, false teeth etc for dentist, which while fun it was not working on engines like I liked to do.. LOL..

[@copeland694]

Hope he stays humble. He seems like he is. Idk tho

[@florenbaron7111]

My parents weren't even parents so it would sure be nice to have a dad like him.

[@njfinests]

I agree. His son is exactly where he should be, with his father!!!

[@FirewoodJim]

I think you already know this, but in case you don't know. You and your team are providing a great service to this nation's people. America needs honest, professional, highly intelligent role models who actually provide a very very valuable service. By sharing real knowledge and real world senerios with up to date technology, your unique draw is refreshing and needed in a world of bs. In an age of smoke and mirrors, your shop will lead a generation of Americans into a career that we desperately need. Keep up the work yall love and know yalls hard work doesn't go unnoticed.

[@DavesAutoCenterCenterville]

That means a great deal to me, thank you. It is part of my mission to spotlight the hard working men and women in this country

[@traviscorcoran1337]

It's actually inspired me to get back into the business and buy my old bosses shop

[@hotwheels9963]

This channel is blowing up because you can’t get this level of detail and experience ANYWHERE else without actually doing it. I love every second of this!

[@KyleFrybaugh-wn7jt]

Im a gasser tech for the last 20 years. I get much grief from my coworker when i tell him that i watch videos of a repair shop/machine shop after work. Dave's videos are so informative and i was pleasantly surprised to see Dave professing his Christian faith on his Easter video.

[@Ruhdiculus]

Amen, Christ is king 👑

[@ding9633]

I was quite disgusted by his religion 🤮

[@KyleFrybaugh-wn7jt]

@@ding9633 I'll pray for you. Eternity is forever brother

[@ding9633]

@@KyleFrybaugh-wn7jt Don't waste your time

[@redbaron6805]

What does that have to do with anything...?

[@williamtiebout4142]

I'm not a mechanic but, I'm addicted to watching these CRAFTSMAN work. Incredible content!

[@boblinda1738]

Ditto

[@EShirako]

I'm not a machinist, but after watching these and other GOOD machining channels/motor-rebuild folks work, I might be interested in learning how to be one! It's interesting. Wish I'd seen this sort of thing back in high school.

[@samte4672]

i bet 95% shops does not surgically inspect cylinder walls like these gentlemen.. again and again insane knowledge giveaway on that channel 👍

[@DavesAutoCenterCenterville]

Wow, thank you!

[@1krista1969]

The idea is to educate people, not withhold info worrying it may take away business. Most trade secrets are ridiculous, usually just basic knowledge. The problem is the clueless customer who doesn't know any better because the knowledge is being kept from him. I learned everything I know because it was passed down from the previous generation. When these guys are gone, the knowledge and skill dies with them. Its better to share it and pass it along than being greedy and taking it into the grave forever.

[@robertmiller5333]

I would love to know who taught him and what they know he is incredible

[@mechanicdrew3375]

Everytime I watch Dave's video I want to pack my box and family and go work this man. He is truly a great owner. He does everything proper and just seems like he would be the best place to work. Been doing this work for 15+ years. You can tell he is just a good human being not a shister

[@tioswift3676]

You should do it

[@DavesAutoCenterCenterville]

Wow, thanks!

[@BAJARACER43X]

My thoughts exactly

[@mechanicdrew3375]

@tioswift3676 don't temp me I got half a mind to drive across the country to do it. I'm tired of some shit in my area plus that area of ut is a wayyyy better place to raise a family

[@shawnhooton8375]

@@mechanicdrew3375Then do it. You only have one pass through life. Research it and if it makes sense for your family then go for it. You will look back and be so thankful you did.

[@Fridge_is_cold]

As someone who’s been in mechanical engineering for only 8 years after leaving school. I am amazed at how much I don’t know still, and how much this channel teaches me! So many tips, tricks and advice I can use in my career. Dave and team, I thank you from the UK! Your channel makes education exciting!

[@leewalker3514]

I am 100% convinced that this is where you need to get your motors built after 30+ years of being a tech myself. It is absolutely top shelf

[@treeguyable]

Even top shelf!

[@thomasperina2990]

Hello Dave: Thank you for this important video on surface finishes, use of a profilometor, + the basic dressing of the grinding wheel prior to grinding of the journals of a crankshaft. Dave you are to be commended for your detailed explanations of surface finish per application as well as the proper setup prior to grinding. I must say that you & your son are the first time I've ever seen a profilometer used in an automotive application. After 18 years in the aerospace industry we utilized a profilometer almost on a daily basis especially for armatures, & bearing bores. You also brought back many memories of the proper grinding operations especially needed for close tolerance work per application. Sorry for the rant but you & your crew constantly amaze me regarding knowledge, individual abilities, + the discipline to adhere to proper procedures & practices. Thank you again sir. God Bless you, your family, and your crew. TMP from N.J. 🙏

[@DavesAutoCenterCenterville]

Good to hear from someone in the aerospace industry. You add a depth to this channel 👏👏

[@thomasperina2990]

@@DavesAutoCenterCenterville Thank you Dave. You & your crew are awesome 👌 👏 👍. TMP from N.J. 🙏

[@pgmurray76]

No seal surfaces!? Ok, ok, apples with apples. You are relating the bearing mating surfaces with that of a crankshaft. PTFE impregnated, anodized hardcoat FTW! (With perfect cylindricity too)

[@Renville80]

I usually pick up a Haynes book for each of the vehicles I've owned over the years - not necessarily to do the shade-tree mechanic thing, but to be informed on what is involved in repairing or replacing a specific part on that car. Each copy has a chapter on the steps involved in a general rebuild of an engine, and it includes how to assess certain major defects in the bottom half of the engine by the type of wear in the bearings on the crankshaft. One failure mode was 'tapered journal', and here you've finally explained how that failure mode comes to be, so thank you for that!

[@thomasmleahy6218]

Bellmouth.

[@prowler2358]

Brilliant as ever, as an engine builder this guy is on the money, listen to him, he knows what he's talking about.

[@kennethduffield8684]

Back in the late 80s, early 90s, I worked at a machine shop. I helped an old timer who built race engines in the 50s & 60s. So much if this information you talk about has been lost through the years. It's refreshing to see someone who knows what to look for and how to diagnose the failures

[@ronsullivan132]

I spent my entire lifetime working as a Machinist and Tool & Die maker. When I got near retirement age, what you would think a responsible employer would do is pair me up with a newbie coming into the trade so I could pass on my 45 years of knowledge. What happened was nothing happened. Packed up my tool box and left. Years of knowledge and experience gone with the last click of the timeclock.

[@tp8030]

Dave doesn't take peoples money and run. I have a ton of respect for this man! What a 💎 he is.

[@kevinw7575]

Thos guy is so thorough. Gotta be worth the extra money to ship to him vs so many other places

[@tomm487]

I would pay up no questions...I thought i knew all there is to know about motors...then i hear bellmouse......turns out i don't know squat😂

[@1krista1969]

Over polishing a crank journal can cause that too.

[@user-bt1nd9fl3c]

I appreciate your knowledge, and being a stickler for details, and not being stingy with that knowledge!

[@DavesAutoCenterCenterville]

Glad to help

[@StuartBlake-iz6rf]

Very impressed with all the well-spent money on tools and equipment. You have a wealth of knowledge and constantly improve. And it shows in your work and exposes the mediocre shops.

[@stephanebolduc6501]

Always been interested in automotive technology, you guys provide the back room stuff that one never sees. What a great educational channel, so glad I found you guys!

[@DavesAutoCenterCenterville]

Our pleasure!

[@shanechostetler9997]

I love Dave’s ability to describe the nuances in these projects. I was fortunate enough to have gone to a small voc-tech in Washington State, and luckily the old timers stressed the importance of each step to be done with cleanliness and accuracy. Checking tolerances every step of the way. Ring gaps, oil clearance see on every bearing surfaces, etc. I built two diesel engines with their supervision and each one turned out very good.

[@squatchpnw2331]

Your son is extremely lucky to be able to work with his father and learn so much every day. My dads clock is counting down, just diagnosed with cancer and I've been a wreck...

[@DavesAutoCenterCenterville]

So sorry to hear😫. Wishing you and you dad the best

[@wildmanturner]

Best machine shop and engine builders for the average driver Iv ever seen. Get your engines built here folks…. Dave’s the man

[@getstuk87]

DAVE. THIS IS WHAT THE WORLD NEEDS. I worked for a automotive certification company, you need to put out a "XYZ Certification" of shops who are QUALIFIED to do your level of work so that not everyone who lives near you can get repairs done right. Our company became rich, but what we did was we certified which body shops had the right types of equipment to do a quality repair and gave them a "certification" with a wall plaque, etc, and then we did a little marketing for their shops that got them business (this was how they justified the COST to become certified). If you need help, I'm a programmer who does and did this work for them to make this all easy for both sides.

[@bhollingsworth]

It's shocking to me you seem to be the ONLY shop in the business doing the right things. Kudos to you and your team. If my LML ever dies, I know where I'm going.

[@pgmurray76]

The only other is Banks.

[@markm0000]

@@pgmurray76 that you see on KZbin. There’s more honest shops out there.

[@pgmurray76]

@@markm0000 I actually know the owner of an engine shop that grew up across the street from me. He builds for manufacturer and petroleum industry life cycle testing, along with all the race engines and rebuilds. He rebuilt a 5.9 mechanical for his son's Cummins swapped Dodge Ramcharger. Smoothest, most deep, and cleanest, smokless build I may ever see. So jealous. I was wrong. Not even sure Banks does any rebuilds anymore or at all. Dave and that man think alike. Anyway, my old neighbor prefers n/a builds, but was a specialist racing with roots style blowers decades ago.

[@paulbrown3180]

This is one of the best videos you have put out , please do more of these explanation videos , the basic how and whys are so important

[@r.b.ratieta6111]

This video is an example of the quote (paraphrased): "The young professional knows all the rules. The aged professional knows all the exceptions." Young professionals have a good grasp on the general ideas. But the experienced professional knows all the fine little nuances that only experience can teach.

[@allancharleschalmers4072]

Thanks Dave, I love how thorough you are with all the teardowns and explanations, your videos are the highlight of my day

[@ThosLLeto]

I wish I was a young man trying to figure out what livelihood to embark on and having a mentor like Dave. I have Netflix and AppleTV but prefer Dave’s videos. He has that rare gift of knowledge and the ability to articulate it, empathy to his customers and crew and the experience of being an entrepreneur all rolled into one great package. Thanks Dave. If anything, what I’ve learned is to take great pride in whatever I do. 4 C’s baby!

[@NobbiesGnomeRescue]

No way I would let anyone else, other than Dave and his crew/family, touch a rebuild job on my LB7…! Waiting to get a LB7 “tow monster” with iron heads, Speed of Air pistons and a few other goodies. These guys just do it right, with a smile and the talent to back it all up.

[@davidanderson8469]

It's highly doubtful that my low mileage Cummins will croak but I'd drive or transport mine to Dave's in the event.

[@wildbill1313]

The tools and technology just blows me away.Love the channel Dave.❤❤Your boys are the best.

[@nephron9924]

Looks like a good candidate for those Speed of Air pistons and Total Seal rings 🤔

[@jeffbeerwort7886]

Since I’ve come across your videos, I’m hooked! Very informative and you’re a perfectionist which gets my respect. Watching this video I literally thought, man it would be cool to see how cranks are ground and about 5 seconds later you were letting us into your crank shop. Much respect and thank you for being honest and informative. Cheers guys!

[@bobwarlord8782]

love the lessons in the videos and how you go full circle with it

[@willkay73]

As always, I learn something new every time I watch your videos. I LOVE them. Thank you.

[@DavesAutoCenterCenterville]

You are so welcome!

[@sammorgan2390]

Dave! I learn so much from your videos. Love you guys man really

[@DK-421]

Absolutely love your shop setup. It's like a hospital!

[@blakeengland7784]

Dave.. I want to come and work with all the beautiful machinery. I was a mechanic for 3 years. I did aircraft jack cylinder boring and piston repair, and you make work seem like it isn't work. Your shop is always busy and someone like myself can get lost in work, its fun! I run a small biz, over 2k revenue this week, and i still wanna move to Utah!

[@jeffstieren4474]

Another amazing professional educational review. This makes me wonder how many builders are actually doing it right !

[@arthurbright1625]

Dave this is one of the best videos that I have seen on machine work bar none you would have made an awesome shop teacher

[@DavesAutoCenterCenterville]

Thanks 👍

[@knock904]

Man Dave the extra time u take ..to discuss & give post failure report .Awesome priceless info

[@ncey8713]

Such a complex thing it's basically hopeless that you can have any confidence in the final result unless you've got a guy like Dave who shows off every stage of his work on video!

[@charleshof6394]

With all of the knowledge and skill you and your crew have it is great that you share that with the public. But it is more than that, it is ethics to make a proper engine rebuild, keeping the oner informed, working with him/her to make a long lived reliable motor done really right. Thank you and your crew for doing it right the first time.

[@faulmannpictures]

Dave, I love watching your show. I sure wish I could find an aircooled vw builder that takes as much care as you and your crew. If I ever acquire a diesel that needs rebuilding, your shop will have the work.

[@ivanvarela3215]

Whoever oversaw that prior work didn't do the right job. If they hope to salvage their reputation then they should at least own up and pay for the lost time and labour.

[@user-rm7mm2fd6v]

Very few in the business actually care what product they put out. When I started in the business some 50+ years ago we were taught to do it right the first time, fix it if parts are available rather than replace it keep your work area clean and get very familiar with a torque wrench

[@danielhoffmann1325]

Your point of doing all or nothing is a valid one. I don’t build engines. But I have a shop and I will put rebuilt engines in. I will not give the truck back until I run it myself to break it in and change the break in oil. I am not going to rely on someone else to change the oil on time and possibly destroy what a good builder has done.

[@Ethan-xm4fv]

It's nice to have the fancy tools. Good point on North to South on the piston pins

[@MartiniPinball]

Amazing how much as a non-mechanic guy but just technical interest, i'm learning from dave! I love the detail in this channel!

[@DavesAutoCenterCenterville]

Glad you enjoy it!

[@ashokmohan399]

Absolutely in love with your content. I've been part of my father's machine shop for 4 years now. He's been running it for 40 years and his father before him for 20 years. We're amongst the largest in our country. Despite this me and my dad (I show him a lot of your videos) are still learning so much from your content. It's helped me set a bar for the standards I want to achieve and how I want to grow. Hope to see much more of your work!

[@ricturtle]

Hey Dave, just wanted to say that i am loving your video clips and i have learnt. So much from your clips. I am a technician from Australia. I have not much engine building experience, Thank you Sir!!

[@ianmcwilliam1753]

The engine builder went through all the effort it’s too bad they didnt catch those out of spec measurements before assembly. The surface profilometer that Dave has is probably 2500-3000$ bucks but there’s no substitute for it . I own three classic bmws .All with Alusil v8 blocks. Which is 80% Aluminum and 20% silicon. The surface finish is absolutely vital for the low tension rings to seal and prevent oil consumption/ blow by. My M5 engine is 25 years old now and quite rare (used motors are now 12,000$ and up) Dave is probably one of a select few who I would trust rebuilding that engine. His passion is still there after all these years

[@Gsnoop440]

Dave you have a first class shop! You want to please the customer and do whats best. That is so hard to find now days.

[@thomaslongshore1295]

I was an import car and light truck tech for over 35 years, retired now, but learning something. Thanks.

[@08Cruiser]

Thank you, Dave! I don’t own a diesel, but I learned a ton about engine builds today! 👍🏻

[@lothar52]

Thank You Dave’s auto center just for being you…. It’s great seeing a hard working American 🇺🇸 company doing things right and caring enough to inform the public! 👍🏻👍🏻💯💯. And as always…. Dave for POTUS!!

[@greggc8088]

You are a great showman Dave, which helps your business a lot for sure. Plus, unlike a lot of showman, you actually know what the hell you're doing. Good for you! And thanks for sharing.

[@adriangospodaru9733]

This blown my mind in 75000 pieces , the quantity and quality of the information is mind boggling . We need to protect this man with all costs ... God bless you with health and patience

[@Jay-xz2lo]

Let’s just say Dave catches 99% of shop mistakes I say this cause Dave is better than 99% of them out there.

[@JohnMagelius]

Dave is second to none i rather buy an motor build by him than a new one.

[@donjones3192]

You guys are just too good. Poor machinists and machine shop equipment ruin lots of motors. When you have rotating assemblies spinning like a child’s top, everything better be fitting flush and level or something will be stressed by a poor friction plane. Oil can only protect metal to metal if it has a an even lubricating film. I enjoy watching you guys analyze failures in your tear downs. Takes good equipment and good techs to use that good equipment. Keep ‘em coming Dave.

[@chriswright7748]

Really enjoy your video's, very informative. You have an awesome shop, It's nice to see the enthusiasm, pride and the quality work you do. If I ever need work done, it will definitely be Dave's Auto Center

[@simonmayle45-70]

Man if only more americans took this much pride in their work. You, dave, and your boys, and everyone at your shop are top notch 👌

[@teamgrizzly2859]

Iv been a automotive machinist for 10 years now. 6 months ago I decided to open my own shop but I’ll be honest I’d shut it down and move to Utah and work for Dave

[@michaelkeyes3856]

I learned from a man just like Dave. It made my life so good. Thank you for showing others what we take pride in Dave!

[@francisdelaney2228]

WOW.. Dave, I've been watching your company's amazingly informative video's since you (almost) 1st started on KZbin (less than a year & you're ALMOST to 500,000 subscribers). That is FRIGGING AWESOME!!!

[@DavesAutoCenterCenterville]

Appreciate you supporting our channel from the beginning 😃

[@matthewpetersen2328]

Dave you're the rainman of engine building. I love it! Keep giving us this great info.

[@junseoul5033]

i take notes on all your videos. got a notebook of DAVES KNowledge

[@jblob5764]

And THAT is how you really build knowledge. Writing things down does so much to commit to memory too

[@trinity7913]

@@jblob5764Yes that‘s right I have it on my working phone and if I need this knowledge or I‘m like damn I saw this problem in the past I can just look it up and take a look on my original troubleshoot notes.

[@nyplantings2420]

Great shop Dave. You are blessed with a good business, personality shop culture and crew. I worked in CAT dealer Long Island in my 20-something days that had similar operation with general repair and machine shop and that is the ONLY way to go. (I used to dream of being the field tech) Your shop is resurrection of a dying breed. Back when I was a kid, even most auto part stores had machine shops in the back. Not so today! We left Diesel School knowing basics to rebuild heads, turbos, alternators, starters, even high pressure pumps and run test stand. In the real world many of us lose some of those skills but in your shop can apply a full set. From fuel injection troubleshooting to engine building, suspension etc. The trainees should be paying you!

[@markm0000]

I’m learning so much it’s unreal. Thank you a million times over.

[@DavesAutoCenterCenterville]

Great to hear!

[@Andi_Doci]

They should play your videos in Automotive Tech and Engineering Schools because I am learning more about engines here than from anyone I have known, heard of, or has been famous for engine building.

[@royburnham100]

I really love these videos. I learn so much each time I watch. Next time I need a motor built, it's coming here. Gives me an excuse to go out to Utah and explore

[@harounakebbeh4801]

Am grateful to watch your videos

[@Ljosi]

Like someone else already said, the depth of your work doesn't go unnoticed. People will be thanking you for yor service like thanking a war veteran. You selflessly show actual trade secrets to the public, no smoke & mirrors

[@PlymouthVT]

Just crazy cool stuff Dave. I learn things on every single video you do well worth watching turned all my friends who wrench onto your channel. Thanks for taking the time to show us how well trained and super smart Engineers using the latest technology build a bullet proof engine.

[@douglasburnside]

Watching your videos I am overwhelmed by how much don't know. I used to be impressed by how much I knew about engines and machine work. Now, not so much.

[@rickjones6798]

It just blows my mind the information you have I learned something every time I watch your video and with this one it really made me think about my engine builder and if he did that to make sure my crank was done correctly if he does the stuff you do my race motor should be built to the best it could be but thanks for the info buddy really love the videos

[@OpelSpeedster0641]

Dave give us a beard trim tutorial

[@08Cruiser]

Tell us how to get that facial hair “just right” 😉😃👍🏻

[@DavesAutoCenterCenterville]

😂. Ha ha I'll take any tips I can get on a good beard trim

[@thomasmleahy6218]

But it only lasts a couple days, especially if your metabolism is high. Dave looks like he's got a higher than average metabolic rate.

[@captaintoyota3171]

Built lots of engines, never machined a crank but makes sense. Thanks Dave learn something new after decades-ASE cert tech

[@DavesAutoCenterCenterville]

Thanks for watching!

[@Jimmy___]

Love these informative videos. Small note: I find it incongruous how the intro has the sound of an old F1 engine with the car being what appears to be a Lincoln Continental (or something like that) in the logo. Should be an American V8 rumble in my humble opinion.

[@MrMan5014]

I would love to see you guys do a tear down and full build on a 6.4 Powerstroke/Maxxforce 7 and see if it’s possible to build that engine and make it reliable!

[@papabapyro8169]

You are amazing. I’ve been working on motor’s all my life and and show me things I knew nothing about. Cheers

[@buby58]

I really like how you are using FORMULA 1 V10 soundbites in your intro. Its my favorite part of your videos

[@copeland694]

Someone who actually takes pride in doing it right. Good stuff Dave!

[@bobwilson758]

Top flight info guys - brings back old memories . Thanks fellers ! Good crew & shop .

[@abegiesbrecht1148]

After watching this channel, i have come to the realization that all the shops in my area are under-equipped.

[@CoCojoy420]

Amazing the knowledge he shares, without fear, also the terms that are emitted, are somewhat and understandable, to my small brain

[@SteveGentile-os3kk]

You guys are a plethora of great information. Love channel. Keep up the great work

[@timss7763]

I use to think I knew something about motor components, but mad scientist Dave is breaking everything I thought I knew. Keep it up the great videos Dave, I have a lot to learn. This stuff can’t be taught on instagram! 😂

[@Glocktard]

Dave, I love your ability to explain the how and why of things. After watching enough videos I’ve come to trust your son here, I would like to hear him do more explaining (if he feels comfortable) because we can see the competency in his actions.

[@DavesAutoCenterCenterville]

Absolutely. We will spotlight him more and more. He is a wealth of knowledge

[@wesoakes]

I work for a manufacturer and this is my favorite KZbin channel. Love it.

[@user-sf7kl9uh7k]

I like this guy, he feels more like an engineer than a mechanic. No, he's an engine builder, definitely an engineer.

[@garygardner6536]

Obviously from what you can see Dave and his crew are passionate about their job. Love your job and life is pretty damn good. If only more shops would take on this attitude. Get out of this trade if you hate it and give somebody else a go.

[@ZMAN_420]

These Dodge Trucks with the 5.9L are one of my favorite combinations. If you treat an old mechanical 5.9L correctly and change the oil when your supposed too. In the railyard industry from 1995-2008 all the spotter trucks and alot of the heavy equipment was all 5.9L non electronic, non emission great engines kept freight moving at all the Chicagoland area anyway.

[@pakviroti3616]

If I ever need a motor built, I'm going to see Dave and his crew.

[@munozinni]

11:11 Wow no wonder you are the best in this trade years of knowledge 😊

[@johnhart125]

Another great lesson Dave, always interesting

[@BenKlassen1]

Valuable information from true professionals!

[@superiorsteeljack]

Amazing Lesson, I get a Rush from these lessons. So Cool!!! Thanks Guys

[@ka-tengboyz5473]

Dave is very knowledgeable and so is his sons. Awesome content and very good information. Wow just wow

[@jaycoons2463]

Awesome job guys I really like how you go into detail and explain everything

[@traviscorcoran1337]

The world is hurting for guys like you to teach us dave

[@K-Rivs]

Excellent video with decades of knowledge that shines through. I can appreciate the attention to detail it takes to machine and rebuild an engine. Many times I've trusted my local machine shop to do all the work 100% spot on without knowing whether they did or not. Sucks to think that these machining wizards are a dying breed and will be gone in the years to come because of the EV movement. 👍