[Farmall] Farmall M transmission locked up

[Robert Johnson]

Years ago , I had the same problem with my W6 , and wrote to the list for 
help.
Initially , I had trouble sorting out the box , then I tried another 
approach.
The fork on the gear lever was very worn , it would have to be rebuilt , or 
replaced.
I had an AW6 in the shed , a wreck , so I took the gearstick off that , and 
found it to be in very good condition.
So , I put it on , and sorted out the box quickly !.
FWIW Rob Johnson.
----- Original Message ----- 
From: "Mike Sloane" <mikesloane at verizon.net>
To: "Farmall/IHC mailing list" <farmall at lists.antique-tractor.com>
Sent: Saturday, July 28, 2007 8:10 PM
Subject: Re: [Farmall] Farmall M transmission locked up


> This is actually a pretty normal situation. What happens is that the end
> of the shift lever gets worn and permits it to slip between two of the
> shift "forks". what you need to do is remove the three bolts holding the
> shifter in place on top of the transmission. It comes straight out. Then
> you need to use a large screwdriver or small crow bar to force the three
> forks to be lined up in a row (that is the neutral position). then you
> just stick the shifter back in and bolt it up. '
>
> The problem is that you need to restore the proper profile to the end of
> the shifter -  a flat taper that is wider at the bottom than the top.
> Unless you have another tractor's good shifter for a pattern, it is hard
> to guess at the shape. So what I have done in a similar situation is to
> use the welder to build up the end some and then test fit the shifter. I
> use a bench grinder to remove and shape any excess material. It is only
> the very end of the taper that gets worn, so you don't need a lot of
> material. Unfortunately, the new material won't be all that hard (unless
> you heat it up with a torch and quench it in oil), so it will wear down
> again.
>
> Mike
>
> Bill Boyd wrote:
>> My neighbor has gotten their Farmall M transmission lock up.
>> Any hints or tricks to fixing it?
>> I haven't looked at it yet. Probably will tomorrow.
>> Thanks for any help.
>>
>> BillinNETX
>>
>>
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