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41 M stuck cam followers

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Central Illinoi

12-12-2015 21:33:15

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I have a 1941 Farmall M that I am just starting on. The owner wants me to get it running again. The engine has been stuck for at least 15 years and the tractor hasn't ran longer than that. At least it was in a shed. The engine has a lot of rusty crud in it from old oil sludge and condensation. It's the worse I have come across. When I put the tractor in gear and rock the tires I can see the fan slightly move back and forth so I know the crankshaft is trying to turn. I removed the rocker arms and pushrods. Then I removed the cam follower cover and found a real mess. All of the cam followers are rusted in pretty good. My question is have any of you ran into this and what did you try or do? I am planning on cleaning the area as best I can and using some pb blaster. I have a picture so you can see what I am talking about.

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Central Illinois

12-15-2015 20:16:40

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Re: 41 M stuck cam followers in reply to Central Illinois, 12-12-2015 21:33:15

I thought you guys would like to see what the bottom end looks like.

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Central Illinois

12-15-2015 20:21:01

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Re: 41 M stuck cam followers in reply to Central Illinois, 12-15-2015 20:16:40

Another one.

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charlieu

12-15-2015 06:00:27

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Re: 41 M stuck cam followers in reply to Central Illinois, 12-12-2015 21:33:15

you could also give me a call 507-438-8172

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Central Illinois

12-15-2015 18:28:29

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Re: 41 M stuck cam followers in reply to charlieu, 12-15-2015 06:00:27

I'll try to give you a call. I can't seem to get the e-mail to work.

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charlieu

12-14-2015 19:12:50

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Re: 41 M stuck cam followers in reply to Central Illinois, 12-12-2015 21:33:15

I sent you another e-mail. My e-mail is also open. charlieu

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Tom Fleming

12-14-2015 16:06:32

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Re: 41 M stuck cam followers in reply to Central Illinois, 12-12-2015 21:33:15

Well, that block is junk from my standpoint. As has already been stated, the lifter bores are heavily corroded, and would require being cleaned up, which then requires sleeves or custom lifters. There is at least $500 in just that part of the machining.
If a running M or SM engine can be had for $500 +/-, I would buy and buy it right now before investing any more time in the block pictured at the beginning of the thread.

Unless you want significant "bragging" rights that you resurrected this engine, let it die in peace..... ..... ...salvage what you can from it, and scrap the block.

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gab

12-14-2015 13:21:29

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Re: 41 M stuck cam followers in reply to Central Illinois, 12-12-2015 21:33:15

Unless the owner is stuck on having that one rebuilt, I'd look around, junk yards are full of Ms. I bought a Super M engine a few years ago for $500., came out of a tractor with a broken rear end housing and runs like a new one. You can't do much to that one for 500 bucks.

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tom dowling

12-13-2015 19:20:08

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Re: 41 M stuck cam followers in reply to Central Illinois, 12-12-2015 21:33:15

thats really nasty looking,that blocks not worth the effort

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charlieu

12-13-2015 19:15:25

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Re: 41 M stuck cam followers in reply to Central Illinois, 12-12-2015 21:33:15

I sent you an e-mail this afternoon, I have a complete engine for a Farmall M that you may be interested in. The engine was rebuilt with new piston and sleeves and runs great. I'm parting the rest of the tractor. My e-mail is open.

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Central Illinois

12-14-2015 18:35:03

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Re: 41 M stuck cam followers in reply to charlieu, 12-13-2015 19:15:25

I never received your e-mail so check and see if you got one from me. Thanks.

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Janicholson

12-13-2015 18:40:06

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Re: 41 M stuck cam followers in reply to Central Illinois, 12-12-2015 21:33:15

M blocks (even the correct casting dates) would be far more likely to lead to success than that one. The rust pits in the lifter bores and probable corroded size of the bores is a death sentence to my mind. Unless you have a driving desire to make that one happen, I would replace it in a heartbeat. Jim

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Andy Martin

12-13-2015 14:32:38

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Re: 41 M stuck cam followers in reply to Central Illinois, 12-12-2015 21:33:15

Do you even have to water rubber cows?

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Duner Wi

12-13-2015 14:55:56

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Re: 41 M stuck cam followers in reply to Andy Martin, 12-13-2015 14:32:38

Not today! Been raining.

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rustred

12-12-2015 21:58:10

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Re: 41 M stuck cam followers in reply to Central Illinois, 12-12-2015 21:33:15

i would get the block bare bones and find a machine shop with a dunk tank, as it needs a good caustic soaking to get a good start on that mess. then after that you will need to bead blast it. then after that you can try and pound the followers out. then after that the bores may need to be touched up with a hone. its not looking good as it might just be best to get another block. that thing looks like it sat with out any oil in the pan.

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Central Illinois

12-12-2015 22:03:42

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Re: 41 M stuck cam followers in reply to rustred, 12-12-2015 21:58:10

Funny thing is the oil pan was full of oil and the radiator still had some coolant in it. The two didn't cross paths either. It reminds me of what the older automotive engines used to look like with the old formulation of Pennzoil. Then fast forward several years later to when that sludge was allowed to set there and here you go.

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Duner Wi

12-13-2015 11:08:19

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Re: 41 M stuck cam followers in reply to Central Illinois, 12-12-2015 22:03:42

I you had a big enough rubber cow watering tank I would use electrolysis.

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