Machining G1000 Minneapolis-Moline Cylinder Heads... WE MESSED UP! 

My first carpentry job my boss told me that it isn’t a mistake as long as there is a solution to correct it . And 25 years later I still apply this to my job almost every day . We face challenges, we adapt and we learn . That’s what makes us masters at our craft . There isn’t a person out there that never makes mistakes. I appreciate you guys showing us everything, because that’s how life really is .

Man, that cleaning guy knows his stuff, and he’s a natural on camera!

Love the video!! Thank you for less music and production add ons. The more raw and unedited, the better. 👍🏻

That’s not a mistake - it’s part of the fun of bringing new life to old equipment. 😎👍

my father raised me that if you made a mistake you fixed it. this is an example of that and from your videos i can tell you both have very good ethics and do everything right and to the utmost level of quality you are able

DEAR JIM AND SON; NO ONE...ABSOLUTELY NO ONE ON RU-vid OR ANY OTHER PODCAST SHARES TECHNICAL DETAILS ON THEIR MACHINE WORK LIKE YOU GUYS DO. NO ONE CAN COME CLOSE TO YOUR TEACHING TECHNICS!! THERE ARE NO WORDS TO EXPRESS MY APPRECIATION OF YOUR PERFECTION! God bless!!!!😂😊❤

Your pops is humble and proud of you. The comment about you teaching him to use the lathe. Your a lucky whipper snapper. The cleaning guy shows a lot of patience, with all the RU-vid stuff.

I was a tool maker for over 40 years you guys are good! As I used to tell my apprentices not so bad to make a mistake just find a way to fix it!

A $50,000 replacement valve guide insert? Is that all? Make 2! But truly, you do an awesome job Jim. It's like I'm there with you on the job. Keep up the great work, & a 1 hour video feels better than a short one.

Nicholas with the assist on the new $50k CNC lathe!!

50 grand for a guide - what a deal! Make sure you pass that along to this one guy, then it's 100% gravy from here on. ;)

As long as you fixed that valve guide problem that's all you need to do. 30 years ago we were reconditioning some cylinder heads when I did a small automotive course at tech during my high school years & we reconditioned the cylinder head which was off a 202 cubic inch (3.3 litre) L6 engine in the Metal fabrication tech teachers Holden VK Commodore & we all took turns at cutting valve seats with a hand held tungsten carbide cutting tool & grinding the valves. On a lot of the valve guides we just knurled then reamed the valve guides back out to their original size but a couple of them needed K line inserts installed which are similar to what you installed but the work was outsourced to a local mechanical engineering company. We also reconditioned a set of 308 cubic inch Holden V8 cylinder heads which a student brought into tech for his brother,we reconditioned them but I am not sure if they were even used. Since the Holden brand is GM in Australia they drilled the valve guides straight into the cast iron cylinder heads, people get them machined for positive valve stem oil seal fitment because the O ring type of seals are prone to splitting !

If a mistake can be corrected, then it ain't a problem unless you didn't learn anything. Those old Molines are great tractors.

Anyone who has the opportunity to hear one of these tractors, running and working under a load? It's a sound like no other… Because of those power cells these engines were huge torque power houses, even naturally aspirated.

I would have never guessed that those 'spring locator' flanges were not a part of the head casting! I guess you're lucky they are not! Fairly easy fix and another job for that fancy new lathe!

Love learning from my mistakes, but love learning from others’ mistakes way more, thanks for your videos guys

I would have made completely new valve guides from scratch with that new cnc lathe! The perfect job for such a Maschine! Program the part ones, pump out 12 pieces with no afford, profit! 😁

We have a G 1000 vista. It's on its third set of heads they like to crack in between the valves. Pretty cool to see you guys working on these. I would ship these from Connecticut to Colorado to have you guys do it in a heartbeat lol

Thank You for showing the mistake and what you needed to do to fix the mistake.

Love this video. I work on restoring old diesel engines and trying to show how much work is involved in engineering your way out of parts issues is a constant battle. Excellent work guys.

Nobody else I'd rather have working on an honest mistake than the cleaning guy. Seriously, you guys run a great business and I just love seeing the father and son banter.

Oh wow I thought I would never hear we made a mistake 😢. But we are human and it happens good luck waiting to watch.

I’ll have to watch again for the mistake. All I saw on my first watch was solutions. Great work gentlemen. It is super satisfying to see crafstmen doing an honest days work with an emphasis on treating their customers how they’d want to be treated.

Hey I Stuck a 9/16 socket in one of those heads pushing A Guide out and cracked the head, I was only 18. Ist year in automotive class in college made my heart skip a beat sir. Love your work, they got me a sore head award. Oh to be young and stupid 🤬🦜🦜

Great content for a Sunday morning late breakfast

Brilliant work for an old fella. Show these youngsters how to overcome problems.

Good video. When working with older stuff, sometimes unexpected things break. But a pro like yourself just finds a decent workaround, and moves on. Glad you showed real-life problems, not just "easy" successes. You know what to do after a problem, but great that you share it with us. Indeed, I find your video series relaxing AND educational.

I like the fact that the head is separated into 3. Try lifting a big cast iron 6 cylinder head. It's also less prone to warping

From a standpoint of knowing the processes and all...I am glad I gave it up early and turned to electrical engineering. I'm not a current expert on machining but I can appreciate it(in fact I love it). Nonetheless as I am nearing retirement and I can understand the Janitor/cleaning guy getting involved just for fun. I do what I do but I think fussing and dabbling around with old machinery and new machines would be kinda fun.

I love what you’re doing especially when I’m over Minneapolis Moline Hege. I love seeing how you do. This makes for a great time watching. It is very interesting. Keep it up.

I appreciate that alarm of yours. You really are respectful to people's time.

Love the 'smoke' wafting out of Port as you ream the guides!!

Those things are beast. I have a MM G1000 "vista" . After about the third year production people complained the seat height was too low and they raised the seat frame and operator station about 9 inches and called it the Vista. Mine is a LP in the rice configuration with a huge rear tires, you can pull that 24 foot disc all day long with it, well as long as you have a Nurse tank out in the field with some propane because it eats fuel at about four times the rate of a diesel.

I am constantly astounded by the work you boys do, it is absolutely amazing!!!!!!!

Wow, got yourself a great lathe, you will wonder how you survived without ! No problem fixing broken old guide.

Great video ! Good to know many tricks of the trade ! Thanks for sharing !

My first factory tour as a machinist was at Minneapolis -Moline engine plant in Russellville Arkansas in 1980. Them guys were busy, but it didn't stay open long after that. I never went to work for them.

Great content again guys. As always I learn a few new ways to do different setups and repairs on non engine related parts for some of the work that I do. Thanks for sharing your work and time with us.

Built from 1965 to 1969 - 7,397 were built - New Price $8,200

I enjoy watching the older machines in action! They take more skill, proving someone's work.. great job cleaning guy!

Boy that takes me back. I spent the first two years of my apprentice ship at a dealership for Minnies.

Good job saving that head. I like hoe you can think past the problem and come up with a solution. A lot of people would throw un the towel and say the head was ruined, because they can't see past a problem. It takes a person with reasoning power to be able to accomplish this. Over the 45 years I was in the automotive repair business I saved several jobs where someone else quit when a problem arose.

WOW, another fantastic episode!!!

This channel is so good! Thank you guys

Hopefully we will see part 2 of this, would be nice to see how it gets fixed ❤

Isn't the power of the internet awesome? Someone was watching, and it got you a new set of valves and an awesome service manual. Service manuals are worth their weight in gold, in my opinion. There's no guessing on any repair or testing procedure it's all their in black and white. BTW, hell of a nice job on those heads 👍

Enjoyed the podcast style intro, videos keep getting better and better!

As I understand it, that pre combustion, indirect injection was known as a Lanova system. Common in older diesel.

That lathe is a beautiful piece of equipment. We had an old 50's era Logan lathe on the farm. I learned a lot on that lathe though.

Congrats on the new machine!

I am liking the music overlay when zooming along :) love the content

You left the cleaning guy in the shop unsupervised?! All jokes aside, y'all are awesome. Good work, keep it up!

Very impressive video. You, sir, are quite the talent.

Really enjoyed this video, lots of clear information, thanks for sharing your vast knowledge with us all ... :)

That design reminds me of some of the older GMC designs where there were multiple cylinder heads per bank like their V12 engine IIRC.

Great watching all that is involved in rebuilding these heads! I bet somewhere those parts exist but finding the person with those is like a needle in a haystack. Was at a garage sale and a guy had lots of M&M parts but I was interested in the signs from the dealer, I mentioned he had lots of parts, he said yep , all from a defunct dealer and if they didn’t sell they were going to be scrapped, I’m sick thinking about it.

Nice lathe addition to the shop hope to see more content from that machine.... thanks

Maybe throw some giant magnets on the bottom side of that bench? That way you can remove them to clean up any metallic particles if necessary and then put them back to help you lock your parts in.

Jim and son, I have been watching your videos for quite a while and am always impressed with your knowledge and skills. A couple of years ago I had a Ford 250 Crossflow (non OHC ) rebuilt for my replica WW2 Willys. Had it balanced, and the shop threw in a stage 1 cam "to give you a little more low down torque". Do I look upset ??? It runs like a turbine!!. So after watching a few of your videos I visited the local engine shop and described the sort of things I had seen you doing and how I now understood a bit more about engine reconditioning. Their reaction: "We do do that stuff all of the time" So , no reflection on you guys, but heartening to know that my local engine shop is competent and skilful. BTW I am in Australia, and in another life would bring some of my vintage engines to you for attention. Keep up the good work and the excellent descriptions of what you are doing. Cheers, Wayne Jefferies

Get a bar of manganese bronze and whittle up new guides on that nice lathe. If not, well shoot me a print, those look simple to make.

Cool video it's good to see you run into the same things I do too😂 Just fix and keep going thats all you can do now. God bless you

Late friend of mine rebuilt antique tractors. Mainly JD but he did have a G-6 Moline. Stout old tractor. Another guy had a G-1000. Every year it got stronger. Eventually he won every pull. Everybody knew he was cheating but couldn’t figure it out. Turned out Moline made some water pump motors that were much stronger but not many in the country knew how to pick them out. He just went too far with custom camshafts and huge injectors with similar custom work to fuel pump. Year he was finally outed he was rolling smoke like a professional tractor pulling team.

I noticed the slight 'D' exhaust port shape! Obviously for extreme performance!!

i always appreciate your contents..thanks, for sharing...

Nice work, and the recovery plan will work out fine I am sure.

That "Power Cell" section of these heads kind of acts like a pre-combustion chamber. The very first Honda CVCC ( Civic ) cars that were imported into this country used this style head. The mixture ignited in a pre-combustion chamber then traveled out into the cylinder. It greatly improved fuel economy because the air fuel ratio could be leaner.

Great content thanks for sharing

now my sunday morning is complete

Great video as always 👍🇦🇺

Hey, stuff happens! Just an opportunity to develop new fixes. Love the new lathe!

Fun all day long!

Great video!!! 🙂

Thanks for the heads up for the alarm it gave me time to lower the volume down on my headphones 👍🏽. Ps. Bada$$ video 👏🏽

Love the content, would love to see the fix on the guide/spring seat too

You guys didn't mess up, that part was pretty close to failing by itself. You probably saved the engine for this customer. I would bet that this would have failed catastrophically on the customer, and it would have wrecked the engine. Good job. You and the customer should actually be happy and try looking at the others for signs of fatigue.

25:26 congrats. It's always nice cutting that first part. I usually keep the first parts in a new machine with the machine, like a dice with my first 3D printer and a small key chain peon with my first lathe. Enjoy the fresh, new machine smell while it lasts! :)

Cool video guys!

Love the hand wheels on the TL-2. Wished my had them.

MM calendar heads are notorious for cracking. We had a 1973 G950 and had to replace 2 of the 3 on it.

"these cut a little bit shorter, and these cut at an inch & a quarter" ahhh machinist poetry. Didn't know you were a famous poet! Jim Allen Poe lol

That’s a super nice lathe!

In Alberta Canada we used those engines for Dome Petroleum as pumps and natural gas engines to run generators they were famous for breaking piston skirts back in the 80's

Back in the day, factory manuals were total beasts, regardless of the application. Every facet of the items being was described in detail. Now you get a folded up piece of paper, and written in a dozen languages just says "plug it in, fuck you"

Those kinds of manuals are the very type "WE" Shadetree mechanics need so that we don't screw things up! I usually go to the library to get the info, but having those on my bookshelf, at my fingertips would be priceless! Like when I needed them for my 60 Chevy Impala -348 CI!

Your son's video work and your voice, knowledge and workmanship....👍👍👍👍👍 Brand new lathe? Like you put it out of somebody's barn. 😂😂😂

A great result on some old heads - 'adapting and overcoming' When you initially said that you were going to put the splice in the guides outside the head my distant thought that put it in a risk zone. During installation I saw that there was a bit more meat to the guide but with 20-20 hindsight it would probably have been safer to do them all the other way round and would have allowed an easier repair on the shattered ring?

You're real guys doing real work, so don't worry about sniping from a couch in some basement.

Excellent

Really good video

Have you guys ever used the K-line guide liner? I’ve used them in old tractors. They take a different kit for each diameter valve stem Thanks for the video and how nice to have the Cleaning Guy getting the first official use of the new lathe.

Thanks! Sure thought it was gonna split those guides.

Keep calm and machine on.

32:30 A wonderful shirt with black intersecting stripes. Wait ... they're not black

Great video. Maybe i can send an engine some day. Your dad saying "mayshur" (measure) cracks me up.

Because of the thin , unsupported old valve guides, why didn’t you elect to swap the position of the short and long replacement guides? Thereby having a longer guide firmly seated in the top of the head, where the most side loading happens ???

Almost 2/3 MILLION SUBZZZ !!!!

Way to go cleaning guy 👍

25:51 - You're a young man; you still have hair! 28:20 - Surprised the (cooler) intake valve is given a longer guide. 28:49 - What are you using as a 'cushion' between the clamps and the head surface? 42:33 - Never done diesel engines, but spark engines always have an intake larger than the exhaust. 49:54 - That 'tower' looks to be part of the head casting, but, regardless, it's gotta be fixed.

Are you going to the show? I can see you are picking your seat! 😊😂🤣

Dear jim,this is something I did out of necessity,i had a old cord the motor was that worn they machined it out to 60 thou,i had them machine up a equivalent aluminium piston out of solid bar ,redid the white metal bearings,i used a set of ford V8 rings,the rocker gear was like a new born calf, pretty wobbly,on the cam followers they where adequately repaired the valve guides were done with a sinstered bronze bush,now it came to valves themselves,i had next to no material left on the valve ,it had the biggest mushroom or ring on the valve,i them to a professional tig welder and had them tig weld them with a suitable material,they where then machined and came up like new,i had hardened valve seats installed on the blockthe valves sat up proudly on the seat,i found replacement valve springs,the cam was reground with a moderate sports grind,old cam bearings are original in excellent working order, i reconditioned the water pump,i also installed a super charger,the valves where a experimental,so far so good,they weren't sodium cooled,so i thought this is the most economical alternative,a tip for you dont sneer,the welder did a beautiful job on valves,the machine shop was faultless in the refacing of the valves, beautiful job on valve outside radius it must of done, million plus miles,two or three times around the clock,it runs like a dream