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Discussion Forum
:

Farmall M Transmission leak caused by drive gear gouging hole in case

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Dennis

04-18-2002 14:44:20




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From what I hear this is is a common problem with these tractors. The inner bearing of the drive shaft goes and lets the big drive gear cut a hole in the case. This happened before I bought the tractor and just recently started leaking again.
The previous owner replaced the bearing and tried to seal the hole by welding. Several welding shops have told me they can't or won't try welding it. I would appreciate all input on this problem I can get. Please feel free to email me.
radios@midrivers.com
Thanks
Dennis

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Dennis

04-19-2002 13:27:21




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 Re: Farmall M Transmission leak caused by drive gear gouging hole in case in reply to Dennis, 04-18-2002 14:44:20  
Thank's guys for all the good ideas.
Dennis



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Dennis

04-19-2002 16:03:12




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 Re: Re: Farmall M Transmission leak caused by drive gear gouging hole in case in reply to Dennis, 04-19-2002 13:27:21  
How do I check for worn drive shaft bearings?



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RPM

04-19-2002 07:09:11




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 Re: Farmall M Transmission leak caused by drive gear gouging hole in case in reply to Dennis, 04-18-2002 14:44:20  
In our shop in the good old days when these were the tractor of choice this was a common problem in heavy tillage, we would advise the owner to let us take the rear frame/transmission/axles apart and check all the bearings, the old saying a ounce of prevention was worth a pound of cure really applied to this. The axle bearings were the most often failing and the bull gear would slowly grind a groove in bottom of main case. We patched the bottom as best we could, welding or even making a metal plate and bolting over the hole with small short bolts and a homemade gasket to seal it, this was before silicone sealant came out. If you are arc welding use nickel rod and drill a 1/4" hole at each end of crack or corner to help weld heat stress. LOL

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Tim Malin

04-19-2002 06:15:00




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 Re: Farmall M Transmission leak caused by drive gear gouging hole in case in reply to Dennis, 04-18-2002 14:44:20  
We have a 45 M that rusted a little hole(smaller than a pencil) in the bottom of the transmission case. My dad is an expirenced welder of 25 years and knew a few tricks to fix it. The second he touched it with the stick and made an arc the walls were so thin they disappeared, leaving a hole bigger than a silver dollar. After some more tinkering, he welded a patch to it. Somebody should be able to do it for you, but if it is really tore up in might be cheaper and safer to find a salvage rear end to part out. Good luck.

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BIG JOHN

04-18-2002 15:50:08




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 Re: Farmall M Transmission leak caused by drive gear gouging hole in case in reply to Dennis, 04-18-2002 14:44:20  
If you don't have any stress on it, just a hole, you can use JB Weld with good results.

Good Luck



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