We Wish We Would've Caught This Sooner...

Рет қаралды 227,250

Жыл бұрын

Sometimes you break your own rules... We normally don't order any parts until we have done a complete teardown & diagnosis. In the case of this C12 CAT head, we got in a hurry and ordered all of our parts in before we had checked if the head was rebuildable. Here's how we fixed it after we already had all of our ‪@IPDParts‬ components!
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Websites: www.jamsionline.com
www.jimsmachineinc.com
For business inquires: Contact info@jamsionline.com
#automotivemachining #jimsautomotivemachineshop #CAT

Пікірлер: 319

@tricycleguy2657 Жыл бұрын

"New bare casting" "ready to assemble" I like the thorough check of the new head they are never right on

@JAMSIONLINE Жыл бұрын

We check every new casting! Never know what you're gonna get.

@tricycleguy2657 Жыл бұрын

@Jim's Automotive Machine Shop, Inc. you aint kidding even brand new heads from cat get a straight edge check

@ctdieselnut Жыл бұрын

Do you guys get many 6.0 ford diesel heads come through the shop? Or did you in the past? They were kind of notorious for the head bolts stretching/heads warping/cracking (which lead to head gasket problems) . 6.0's are starting to get kind of old now, but there are still plenty of them on the road, was just wondering.

@Sunspot-19 Ай бұрын

QC was smoking too much pot, Jim and Nick had to redo their shoddy work!

@johnelliott7375 Жыл бұрын

I'm glad to see that there is a honest company still.

@sonyhk3824 Жыл бұрын

Agree 👍

@tracewallace23 Жыл бұрын

In my limited experience, small companies that have been in business for a while, tend to be much more honest than ANY big corporations 🤷‍♂️

@noahingram8052 Жыл бұрын

@51-FS Жыл бұрын

Yeah theirs a transmission shop in Texas that's the same way.... I would love for these guys to build me a motor and the Texas guys build me a transmission.....

@noahingram8052 Жыл бұрын

@@MikeRatcliffe24 haha ok

@kruyf73 Жыл бұрын

I'm not a machinist or (car) mechanic. Just a electrician. But i really enjoy watching your video's. The skill involved doing the things you guy's do is really great to see. Greetings from the Netherlands

@matthewb8229 Жыл бұрын

"Just an electrician" he says! A cousin of mine was electrician, and the problem solving skills he had when it came to figuring out a scheme for the multitude of jobs he did was amazing. As a telephone/comm network installer, I've done the same kind of thing. None of us are "just".

@Z-Bart Жыл бұрын

Never sell yourself short. You are a skilled tradesman. There will always be a need for the trades. Signing off, Plumber Ray.

@JAMSIONLINE Жыл бұрын

Thank you for taking the time to watch!

@harrywalker968 Жыл бұрын

@@JAMSIONLINE send it to india,,they,ll fix it.. watch there vids.. amazing..big diesel re builds..

@ctdieselnut Жыл бұрын

@@harrywalker968 was just watching a vid from india/Pakistan of them casting a huge involute gear, like multiple feet thick. Those guys are impressive for making do with less, but it's kind of scary the lack of any saftey equipment (open sandals in a metal shop, plus the child labor).

@ronbunker5778 Жыл бұрын

It's impressive that you check the heads to spec even though the manufacturer stated they were in spec. Thats an extra step you take to give you the confidence that the parts you give to customers are the best than can be. Really nice work!

@bcbloc02 Жыл бұрын

They can print anything on a tag. If you don't want comebacks you better check EVERYTHING especially these days. Just the other day I had a set of new pistons come in for a job that 2 of the 6 were .005" oversized past the limit. While they physically would fit in the bores it would have seized as it was warming up and failed the engine.

@hiteshadhikari Жыл бұрын

@@bcbloc02 always amazing as to how for close tolerance parts, the manufacturers charge so much yet never seem to be anywhere near desired tolerance limits

@logancarter2134 Жыл бұрын

I admire and respect the that y'all don't settle for " good enough" and always go the extra time and effort to make things "as good as they possibly can be." Great content, keep up the good work!

@philr3510 Жыл бұрын

I work in healthcare, so I don’t know much at all about machining, but I really enjoy watching your videos! Very informative and educational!

@samrodian919 Жыл бұрын

You two are the most professional of engine re-manufacturers out there. If I lived in the states and needed an engine rebuild I certainly would send it to the cleaning guy and his kid!

@Zvertnie Жыл бұрын

To deliver high quality products, it’s the quality of service that overcomes quality in parts! 👏👏👏

@MikhailScottKy Жыл бұрын

I rarely do the work you guys do but I can honestly say that next time I do this work I will have new knowledge to use so my motor assembly will be even better than before.

@damianboyd Жыл бұрын

These guys are the definition of do you want this done right or right now. Their knowledge and attention to detail is well worth the costs to get your part is done “right”.

@SonicBoone56 10 ай бұрын

Spend more now, cry less later.

@TheFlanman10 Жыл бұрын

Those cracks are SUPER common on 3406E and Acert series. Seems the firing deck expands a bunch. The deck is very thick and if it passes a leak check we were instructed by CAT to never worry about it. But I agree with your assessment to replace.

@joshuabaker5712 5 ай бұрын

Was just about to say this. Almost every one I have seen has at least 1 cylinder with that crack.

@thephilosopher13 Жыл бұрын

As long as his injection components and his piston clearances are good, that’s gonna run like a scalded dog. Good, quality machine work on an engine like that isn’t commonplace. Even though you’re really far away from me, I might be in touch for some work from you guys purely for the quality of work that you do. Plus it’d be cool to see my heads on KZfaq lol

@montymartin4493 Жыл бұрын

Yes they really are meticulous

@EastBayFlipper Жыл бұрын

I noticed the same thing in 6-92 Detroit engines where they would crack between the valves and trash the head We'd get well over a million miles between teardowns on 6-71's and less than 250k on 6-92's Really enjoy the videos and your cleaning guy is top notch 😉👍

@davidjones8680 Жыл бұрын

You never do know whats behind the door until you open it up and have a good look. I was more surprised by the machining requirements on a new head. How many brand new vehicles out there are sold with an engine that could have been made to better tollarance. Keep up the great work guy's. David in the UK.

@andoletube Жыл бұрын

"How many brand new vehicles out there are sold with an engine that could have been made to better tollarance?" All of them!

@JAMSIONLINE Жыл бұрын

Yep! I'm sure 99% of new vehicles are "good enough", but that's one of my least favorite phrases haha

@bingusmctingus4395 Жыл бұрын

Cummins has a brand new manufacturing tolerance for all new engines and components, at .014", which is MASSIVE

@sgriffiths1448 Жыл бұрын

@@bingusmctingus4395 which tolerance in particular is .014"? Lots of different clearances in an engine

@phoenixrising4073 Жыл бұрын

Coming from a long line of machinists, it's nice to see manual machining done with care. Of course CNC has its place but there is no substitute for the art of machining something with analog tools.

@gerchwingallant654 Жыл бұрын

I have been in this trade for seven years now post my apprenticeship. Watching your videos has inspired me. I look forward to being the owner of a machine shop. You and your Dad make an awesome team and the workmanship is top-notch.

@bennyfactor Жыл бұрын

You always seem to make these parts *better* than new, which is really cool. Also the noise of taking the vacuum tester of the head was a nice satisfying PWOP

@JAMSIONLINE Жыл бұрын

I agree lol

@Choober65 Жыл бұрын

A TRUE Engineer ALWAYS will since factory are built to cost, with hand builds it's down to the skill and integrity of the Engineer.

@thomaswarnecke3991 Жыл бұрын

We all get caught up by the crush of time! Being man enough to admit to it just proves that you live with your personal standards and aren’t afraid to correct yourself ratther then send out a poor product!!!! Proud to watch your vids!!!!😊

@SonicBoone56 10 ай бұрын

Quality service right there. They could've just sold the new head without cutting the valve holes but they didn't. Never see companies that honest anymore. Any business that does something like this is worth the little extra money.

@pst3615 Жыл бұрын

I like your way of thinking, customer first, they expect nothing more than the best and you guys deliver. If everyone did as you do, the world would be a much better place.

@jackfrost1031 Жыл бұрын

Your ability to admit a mistake (parts before inspection) so candidly makes me wish you were closer so I could do business with you!

@kerryminigringo Жыл бұрын

I’m a hobby car builder from an electrical background but I really enjoy these videos. The time you take to explain what and why you do stuff is just fantastic and I love the honesty in why you guys do things. All the best from Ireland 🇮🇪

@leftyeh6495 Жыл бұрын

The future is now! But I still can't see it yet?

@earnestbass1232 Жыл бұрын

Worked at a machine shop in the late 80’s interesting to see how things have changed.

@Matt_Vanepps Жыл бұрын

I would love to just hang out in the shop every now and then. So much knowledge there.

@johnelliott7375 Жыл бұрын

You were small when you got me as a subscription holder. Glad to see you are doing well and growing. Great day today to you both and have a great day today.

@JAMSIONLINE Жыл бұрын

Thanks for sticking around!

@johnelliott7375 Жыл бұрын

@@JAMSIONLINE I have been learning a ton of different things from watching the channel as much as I can. Quality content

@johnelliott7375 Жыл бұрын

@@JAMSIONLINE P.S., always welcome.

@johncholmes643 Жыл бұрын

Caterpillar heads crack between the intake valves. Cat spec is if it's not beyond the valve seats it's reusable. There is no coolant between the intakes seats, hence why they crack.

@MitzvosGolem1 Жыл бұрын

Very common on 4 valve heads . Kinda concerning but if no coolant behind and seat pocket s stay tight it's allowed.

@RockChuck Жыл бұрын

My dad would have plugged that old head, pressure tested it. God bless him he was an excellent Machinist.

@eddiepatterson5025 Жыл бұрын

Congratulations on approaching 500k followers. I respect your honesty and that’s integrity.

@briansmyla8696 Жыл бұрын

As the owner of one of these engines, I can tell you that those cracks between the valves are common on the C12, and generally don't cause any real problems. But I do understand that if you're going to stand behind your work, you'll want to reassemble it without the cracks. When I overhauled my engine, I installed a head that had a couple of cracks like that. 250000 miles later, I haven't seen any problems because of it.

@markchapman2585 Жыл бұрын

Great video, guys so relaxing watching you guys do some machining. If I wasn't dumb I'd like to be a machinist. I'm dyslexic and have ADHD ADD all the fun stuff, lol. But I still like building engines. I wish I could tune an ECU through. Cheers from Canada 🍻

@notyou6950 4 ай бұрын

I really enjoy watching you apply your skills and experience in your craft. It's part of my job as a cnc tech to make the machines deliver precision to allow the machinists to produce the best quality aircraft engine parts on this planet. I will fly on any aircraft sporting our handy work dangling below the wings. You only have one reputation to live by and you are doing a good job at it.

@donharper7759 8 ай бұрын

I’m not a fan of using aftermarket parts on motor overhauls but you being a competent machine shop I can see saving some money.

@sungear Жыл бұрын

I love learning from people that know what they're talking about. I've got enough machining experience to know when people are BS-ing. You, sir, know what you're doing.

@JAMSIONLINE Жыл бұрын

Haha, I hope you're right! :P

@genefogarty5395 Жыл бұрын

I might just have to bite the bullet and drive my stuff to you guys, I'm in awe that you take such measures to ensure the job is done right. Work like you all do is extremely hard to find nowadays and the extra expense would be worth it to me. I can't stand hearing the shop I use saying, "You're not building a space shuttle"

@peterstgermain1454 Жыл бұрын

It’s great to see a good honest company. I enjoy watching your videos

@flightforensics4523 11 ай бұрын

Excellent! Glad I was around this stuff when I was a kid!

@rowycoracing 5 ай бұрын

Interesting stuff. Thanks for posting.

@royhi1809 Жыл бұрын

Done Right Everytime with Excellence is your motto. Love your videos.

@user-ys7bm1cm8f 9 ай бұрын

Would appreciate you relocating the shop to Central Texas as soon as possible......Would be happy to make you our sole source machine shop for all our machining work... Great work as always.... Now to go to our shop and weld out two seized and broken 6.7 injector hold-down bolts in a method much like your way of doing it.

@beeman1885 Жыл бұрын

Not sure how this showed up on my feed, but loved the video. You all are masters of your craft.

@michaelprue9024 Жыл бұрын

Nice 👍 ! I’ve had to learn over the years to pay attention to detail, several times. So don’t feel bad, it happens to all of us from time to time. At least you caught before any real work began. I hate investing time and labor into a piece only to find it was scrap from jump street and should have been caught up front. But still, with the work you did do to a brand new aftermarket cylinder head, I’m sure your customer had very little to complain about.

@holmes1956O Жыл бұрын

Wow you guys really do great work. Its near impossible to find anyone interested in doing the work to blueprint spec. Good job

@tracydiller9378 Жыл бұрын

Great video guys really enjoy watching. Been in the Automotive field going on 35 years including the manufacturing side. watching your videos makes me feel right at home. Keep up the great videos guys, be Blessed.

@jenniferwhitewolf3784 Жыл бұрын

Such care and detail... nice to see QC maintained as first criteria.

@fyreantz2555 Жыл бұрын

I could watch you guys do this all day.

@Roger-hp1yg Жыл бұрын

Wouldn't you get bored lol

@fyreantz2555 Жыл бұрын

@Roger-hp1yg ...well...maybe a slight exaggeration on my part...

@stephenalbright6961 Жыл бұрын

It's good to see people that take pride in their work

@alansvanes8479 Жыл бұрын

Thanks for posting the video, they are always interesting and informative.

@JJRrcracingfoam Жыл бұрын

Great work like always

@matthewnorris203 Жыл бұрын

Yeah, you’re almost at half a million, great job guys!

@fundamental_dissatisfaction Жыл бұрын

Awesome! You have such an amazing family your Dad is the greatest he should give fathering lessons best regards you guys🙏🙏

@glennbarker222 Жыл бұрын

Lovely work as usual.

@jekciso Жыл бұрын

I am just amazed as to how they divide an inch like it's in nanometer

@bitrage. Жыл бұрын

You guys do good work.... love the drive to improve..

@nickrider5220 11 ай бұрын

Really enjoy your thorough work - you've got another subscriber 👍

@hudbroad2659 Жыл бұрын

Always great content, keep up the good work guys. 👍

@tedmich Жыл бұрын

Nicely done! Experts still make mistakes, they just recover quickly and gracefully.

@Look_What_I_Did Жыл бұрын

I can count the number of diesel heads without cracks on one hand. Every single one of them went right back into service still running today.

@GickelsGaming Жыл бұрын

BEAUTIFUL!

@MASI_forging Жыл бұрын

Great work dude.😃😃

@sonyhk3824 Жыл бұрын

It is very interesting and enjoyable with honor and a living conscience. Cheers guys 👍

@floreswoestenburg9367 Жыл бұрын

Nice result!!, greetings from Dronten, the Netherlands.

@michaeljohn8842 11 ай бұрын

All I can say is you guys are artist at what you do

@bad406camaro Жыл бұрын

Where can I find the cylinder head spec sheets I see in your videos ? Having complete head information prior to performing a job is always a plus but as a "home machinist" not a shop I often do not have this critical information and have to search the internet for what often is found to be questionable information.

@JAMSIONLINE Жыл бұрын

The spec sheets we have come from AERA Prosis Pro. www.prosispro.com/

@crimsonblue88 Жыл бұрын

you guys do awesome work! love this format of video hope you guys can do this for a long while!

@Look_What_I_Did Жыл бұрын

Do they? Calling out cracks that exist on EVERY diesel head? I'll bet $100 you didn't know that, but still praise their work.

@ron827 Жыл бұрын

Love your voice-overs.

@tommyd1155 Жыл бұрын

Glad you double checked their work. Makes for a good machine job.

@MrDizzyDewil Жыл бұрын

That's what you call extra mile! Well done!

@warbirdwf Жыл бұрын

It's great to see your channel approach 500k subscribers. You and your Dad do a great job. It really doesn't take that much more time to be anal and shoot for the best results you can achieve. Machine shops are dying off and closing all over the country. So, I hope your channel and your workmanship is helping your business stay very busy.

@JAMSIONLINE Жыл бұрын

Thank you! We are actually busier than we can handle, but that is a good problem to have!

@RCinginSC Жыл бұрын

Nicely done ! 👊😎

@pjagger69 Жыл бұрын

I want my engine to fail so I can send it to you guys. Fantastic work.

@jimmattingly4234 Жыл бұрын

We all get cart before the horse at times great video thank you for your videos

@BobSmith-mj7ik Жыл бұрын

We all make mistakes. The thing is you corrected it by supplying the customer with a new head. Good job guys.

@stevengillmeister6062 Жыл бұрын

I want my to fail so I can send it to you haha great work like always!!

@miceinoz1181 Жыл бұрын

Love that Serdi!

@JHruby Жыл бұрын

Enjoy your videos. I've been burned by that old don't order parts until you know the whole situation rule as well. Difficult to resist trying to save the time.

@geoffreyweights7697 Жыл бұрын

Good video as always

@jocker621021 Жыл бұрын

job well done 🎉, chapeau bas monsieur, 😊 , from the technical view you and your dad are master of art , so glad you put your knowledge and expertise to the world to see 😊🎉

@MyChava69 Жыл бұрын

You all do damn nice work!!

@steinthms Жыл бұрын

Nice video. Your valve seat runout measuring tool is the coolest bit of hardware that I have seen in quite awhile.

@JAMSIONLINE Жыл бұрын

Thanks! I agree, it's a cool tool. We get lots of fun specialty tools in this industry that aren't seen other places!

@stevemuller82muller65 11 ай бұрын

Keep up the great work fellas 😎🤙🇺🇲

@mikeking3110 Жыл бұрын

Nice work 👍👍👍👍👍

@patrickwendling6759 8 ай бұрын

Thank you for your knowledge and video's USA 🇺🇸

@paulkurilecz4209 Жыл бұрын

Nice work.

@yafois988 4 ай бұрын

Really like your work , very satisfying to see quality work.

@charlesriggs6406 4 ай бұрын

Amazing work guys! Wished you was closer to me so i could use you.

@jmac5304 Жыл бұрын

Awesome video

@davidshay4773 6 ай бұрын

Great videos , very interesting 👍🇺🇸🇺🇸

@christophercastor6666 Жыл бұрын

Y’all kick ass.

@jonathanmacleith7810 Жыл бұрын

At least it was covered in the blue Smurf poop that CAT puts on their new cylinder heads😂

@tiredoldmechanic1791 Жыл бұрын

That's why many places don't even consider rebuilding heads. So many are cracked and a new head can often be purchased for about the same as it costs to rebuild.

@stephenpoe2037 Жыл бұрын

Like your video's very interesting ! Thanks for sharing !

@georgecurtis6463 Жыл бұрын

When we did valve jobs or whatever, the first thing done was to check for cracks. Was common enough for us to do this every single time.

@leightonreese1832 Жыл бұрын

That CAT will run better than new well done!

@HueToobBlows Жыл бұрын

Just send it to the Pakistani Truck channel. They "fix" these types of faults all the time!!! And they guarantee the repair to last until they give it back to you.

@fredproctor6973 Жыл бұрын

Good job

@markpeterson6836 Жыл бұрын

Half million subscribers that's amazing.

@macthemec Жыл бұрын

Dads new haircut looks good 👌

@davidlagle7000 11 ай бұрын

You all are very good

@jbcowherder6210 Жыл бұрын

Question: up until a year ago i worked for a car dealership as a master tech (finally retired...YAY!), we were always told to use valve lapping compound on new valves/heads and to hand lap in all new valvetrains before installing the new heads.....I am now wondering, is this because possibly the runout on the new heads seen here? what are your thoughts?

@JAMSIONLINE Жыл бұрын

Lapping valves is a pretty heavily debated topic, but at the MOST the only lapping that should ever be done IMO is with very fine grit (not what they sell at Autozone) and a very quick lap just to check the contact patch. No amount of valve lapping will correct an improperly cut valve seat. I think it's more of a situation of old habits die hard.

@MrRustyjackson Жыл бұрын

As someone who spent significant time in both worlds it's about time and money. Most mfgrs will have you swap valves, springs cam followers, etc into a new head. It would be rare for a dealership to have a valve grinder 9or someone with knowledge how to use it) and sending valves out to a machine shop would add multiple days to the repair. No tech wants a car torn down in their stall or a thousand engine parts laying around to get lost while waiting for valves to return from the shop. The valves are lapped simply to clean the face then visual inspected to see if they are reusable. With hardened seats lapping does nothing to enhance sealing. It's a throw back to the days of softer metals where you could enhance to seal by removing metal with lapping paste and lots of time.