(800) 853-2651
SHOP NOW

Stuck cylinders on MM-U

A

Anonymous-0

Well-known Member
We have a Minneapolis-Moline U tractor that has had the head removed from the engine for several years. It has been kept inside for this time, but the cylinders are now stuck with rust. We would like to free the cylinders without dropping the heavy pan. What do people recommend we use as a penetrating solution, poured in from the top of the pistons, to free them up? Thanks in advance for the help.
 
Fill the cylinder with ATF and let it sit. Be sure there is no water in them before doing that. Let it sit a week or so then if it has a starter on it try a 12 volt battery and use short fast taps of the starter to see if it frees up. If after a week or so it does not free up and you can do so safely put a tablespoon of gas in each and light the gas mix up. Let then burn till they go out on there own then add a bit more gas and do that a few times till most of the mix has burned away then they the starter again. I did that to an RTU MM years ago and it freed up
 
I think you'll be able to apply more leverage than the starter could by getting a couple of Bubbas on each wheel and rock it back and forth while it's in gear.
 
PS. I've never been a big fan of Minnyanoplace Moline anything but they sure did make a great corn sheller.
 
Remember the blocks are not bolted down now. I would cut a few 3/4 pipes and put at least 2 bolts in each block. With the heads off no problem getting them unstuck. I have had good luck in 5th gear and rocking a rear wheel. And you can beat on it with a 2X4. and 2 lb hammer.
 
Not bolted down?? On the RTU the head comes off the side so the block is in fact still bolted down. Also on the MM engines the head is on the side not on the top of the engine
 
The starter will in fact apply much more torque ti it then any 2 people can by rocking the wheel. BTDT to many times and the only time that did not apply with one I did was my 1935 JD-B and I used a 10 foot bar that I welded up to fit the flywheel
 
On a Moline U series eng. the heads are on the top of the eng! Trust me ,I have owned at least 40 Molines in my life time.
I usually use 4 bolts to hold the blocks down.
I have held the blocks in place with 4 pairs of vise grips too. As others say , use lots of Pee oil or what ever else comes to mind. clint
 
So not like the RTU then but even so would not be hard to do washers and nuts to hold the block down. Sorry but in this area you see few of the MMs and all the ones I have seen have the head on the side
 
the heads are on the top on a U, if it is stuck very bad I would remove the jugs and pound the pistons out with a block of wood or push them out with a press
 
On my Jd 420, with the vertical pistons, I freed it with hot water. The head was off too. I drilled some pieces of square tube so I could use the head bolts each side of the cylinder to put down pressure on the piston that was up with steel blocks.

I plumbed a hose into the bottom of the block going into a tank I could heat, filled the tank and engine with water and fired it up. Got the water boiling and cool a few times, then tightened the bolts and the piston went down.
 
The head was removed years ago when we had someone try to get the tractor running for us again. He never finished the job, and never re-assembled the tractor. Neither did we. Thus it languished, inside a shop, for years. This isn't a tractor that we acquired in disassembled shape; this is a tractor that we farmed with for a long time, and even after we stopped using it regularly, we used to turn it over with the crank every so often in order to keep it loose. But, the crank mechanism broke, and it sat around until it was partially disassembled, sat some more, and seized.
 
You must log in or register to reply here.

Similar threads

C
Stuck engine
2
Replies
20
Views
692
Pappy
P
R
Question on selling price
Replies
12
Views
410
Leroy
L
grandpa Love
Stuck B
2
Replies
25
Views
2K
BarnyardEngineering
BarnyardEngineering
M
1952 MM U tractor restoration
2
Replies
29
Views
1K
MinniMan
M
T
MM Canadian UTS - Date of Mfg?
Replies
12
Views
570
tirediron
T
Tractor Parts Tractor Manuals

We sell tractor parts! We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today.

Copyright © 1997-2024 Yesterday's Tractor Co.

All Rights Reserved. Reproduction of any part of this website, including design and content, without written permission is strictly prohibited. Trade Marks and Trade Names contained and used in this Website are those of others, and are used in this Website in a descriptive sense to refer to the products of others. Use of this Web site constitutes acceptance of our User Agreement and Privacy Policy TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. John Deere and its logos are the registered trademarks of the John Deere Corporation. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V.

Yesterday's Tractors - Antique Tractor Headquarters
Website Accessibility Policy

Back
Top