Minneapolis-Moline Prototype 445 Tractor

[@scottgm321]

I'm all caught up on the D2 series so I decided to see what else you have and I've been binge watching all day. I can't add much to what everyone else has said. You're amazing. Thanks for the videos.

[@billkahl1147]

The machining setup for doing all this work is ingenious! You're certainly one highly skilled mechanic.

[@paszkors]

This series is epic. Since I found your channel, I cannot stop watching. The attention to detail, painstaking care, top quality craftsmanship, patience, skill and knowledge demonstrated is fantastic.

[@kentpanter2044]

Thank you for this incredible series! The external lathe you created was ingenious and well engineered. The work you have done is tremendous and you should be very proud. I will continue to watch your channel with great excitement. Thank you!

[@johnalexander4356]

Very impressive job of machining and creating home made, one off, tooling.

[@crazydave4455]

Fantastic work. Been on a series binge on this snowy February day. Guessing you are in MN, by some of your videos. Hope to see this thing at one of the threshing show's in the future. I currently have a MM in pieces, although not the same model, I'm picking up some pointers. Keep up the good work!

[@rogercarrico4975]

Very impressive work! Really looks like you retained as much " beef" as possible in the casting. Can't wait to see it all coming together!

[@bradbeasley7669]

that's a lot of love my brother

[@johngormley2192]

Knife edges garunteed to crack. Nice job. Hard to find this video I am on my second run through the series. It's a shame I can't Re- like a video.

[@knuteivindharris6031]

Impressed!!!

[@Crazibeast]

This is by far my favorite series I’ve been following. Thanks for the work you’ve put in and documenting it for others to view here on KZbin!

[@shaneharrison4775]

Awesome job looks so sweet

[@ozzyfranf]

I'm new to your channel and I don't know what your day job is, but whatever it is I'm sure they're not paying you enough.

[@lewiemcneely9143]

WOW, what a deal. That WAS like a cat eating a grindstone! Sure turned out REALLY good though. I was with you hoping on the 1/4 but it wasn't there yet. And now a gasket will take up the slack you need. The guys that fixed the case did a good job too in leaving you plenty to work with. Your channel out to be titled 'Home MADE Machine Shop'! Hope the weather is calming down a bit and you're getting a little break at work. Days are winding down and the shop will be open again before too long. Maybe even a little diesel smoke blowing. Who knows. Take care, Pal! I'm with you!

[@lewiemcneely9143]

Sounds like a plan 2 me too but don't O.D. on that sweet stuff!

[@garethhoward3995]

Have you ever shown how you clean up the metal surfaces to look like pewter? If you have, what episode? Enjoy your metal work and machining.

[@brianarps8756]

Very impressive. Great innovation. Well done.

[@darrenblattner2508]

After this the rest of the job should be easy. Looks darn good

[@therealspixycat]

The production version has a "lip" on the underside to add more rigidity. Well done the brazing and line boring. Looks like a big big job

[@Flyanb]

I watch this channel for all the cool old castings! It pains me to see how much effort you’re having to put into repairing. Sometimes you can save time and money to let a pro drop it into a big horizontal mill 3-4 hours including setup and done. You spent 10x that making the 1 off custom machine. Impressive just really hard.

[@johnmezera2862]

This is such an interesting series.

[@davidbramel345]

Been watching for this to happen!! Awe inspiring work!!

[@barrywhitley2535]

Amazing job. You should be very proud of yourself. Great boring tool you made for the job too.

[@bobuk5722]

I'd just like to join with those below. WELL DONE! BobUK

[@seniorelectrician6831]

excellent

[@michiganfarming1955]

nice work bud! cant wait for the next video!

[@pbgd3]

When you started doing this project I tried to come up with a faster method and I'm just not sure if there is one. Might be able to mount a flap disc angle grinder on a bit of an arm so you could hold the trigger engaged and rotate the arm into and out of the part and slide it in/out for depth. Would remove material faster but be a mess.

[@regsparkes6507]

That did take a lot of care and attention to the machining process, and I can understand you being tired after that job. So does the belt drive housing attain it's clearance with steel shims and a gasket to the main case now ? Tedious job to be sure,...you deserve to be proud of the work so far.

[@regsparkes6507]

I'll be watching,...this is why I 'clicked on' the bell icon next to Subscribed.

[@khadijagwen]

Wow, that case looks like it was designed to fail from the factory. I did not realize that the bearing was just hanging out there all alone.

[@l337pwnage]

I agree that it does look scary thin around there for how much power is going through there. They did add significant reinforcement on the production one, tho.

[@caterpillarchris2311]

Superb video

[@maxpuppy96]

Your a magician

[@scottcardwell3520]

You are amazing!!!

[@1crazynordlander]

Is there a hydraulic pump off the back of that shaft? I see the PTO gear behind the wet clutch.

[@geckonz1]

Nice repair, did you consider when they added all the new material to the broken bearing housing adding more material to connect the broken one to the one below it, like in the production gearbox, is that possible or do you like to keep things as original as possible?

[@geckonz1]

Squatch253, thanks for the reply, we used to have a MM Rte here in New Zealand that was parked up because the rims had given out, it sat for years and eventually we put it in a vintage tractor magazine in the late 90’s as “free” the phone didn’t stop ringing, these days I wish we had kept it but the new owner was a MM collector and was able to give it a good home, he was excited cause he had plenty of RTU’s but no RTE’s

[@getprobed838]

i wish i knew what "the material" is they added that needs to be milled back down...is it steel? bronze?

[@billrey8221]

I'm not sure what we are "Repairing" here I see the bronze.....that is the repair? Did the cast iron housing break?

[@Happyfacehotwheels]

Yes, the cast iron housing broke. He has a playlist on this tractor that you can watch from the beginning. It's a 1 of 1 Minneapolis-Moline prototype tractor.

[@rammatic7881]

Just out of curiosity, why couldn't both of the bevel gears be larger in diameter, keeping the same reduction ratio, but just so the pulley bevel gear didn't have to be in as far?

[@tmack2090]

how many hours did you have just in milling ?

[@berlpyle1704]

I do have a line bore stuff that would have made it easier

[@horatiohornblower868]

The jig you built for the boring job is amazing. Far from amazing is the design of that gear box. Simply a disgrace. And the fact MM kept the same design for later models does not give them credit. Obviously the engineers did not learn from their mistakes. No wonder MM is no longer in business.

[@alberteinstein9045]

I take it machine shops with a horizontal boring mill wanted to much to mill this for you??

[@jameshendrickson4428]

Not very fun grinding cast iron. Spent hours doing it on 4 different U tractor transmissions to put g engines in them

[@cavemanballistics6338]

Who the hell is paying the bill for all the cubic man hours you have been investing in this build?