[Farmall] 39 A: Crankshaft pulley with setscrew!

[Al Jones]

On the Cub, I used a couple pieces of flat steel, like 1/4"x1", to form a 
"backing" on the back face of the pulley to get it off.  Worked well with 
moderate pressure on the puller and then a couple of medium-hard blows to 
the pulley with a hammer.  I have not tried to measure but to me this pulley 
looks to be even thinner material than on the Cub.  Has anybody tried 
putting a little heat on the pulley?  I never see that mentioned but can't 
see what it would hurt.  Either way I'm not trying it until we can locate a 
splitter.

Al

--------------------------------------------------
From: "Stan Bass" <srbheadlight at yahoo.com>
Sent: Saturday, March 06, 2010 1:42 AM
To: "Farmall/IHC mailing list" <farmall at lists.antique-tractor.com>
Subject: Re: [Farmall] 39 A: Crankshaft pulley with setscrew!

> That's correct, Al. The early ones did use a set screw, and at least to 
> me, seem a little easier to go on/off. I think I have two of that style 
> around here. Definitely get the bearing splitter to go behind the pulley 
> if you want to save it.
> Stan(VA).
>
> --- On Fri, 3/5/10, Al Jones <farmallsupera at earthlink.net> wrote:
>
>> From: Al Jones <farmallsupera at earthlink.net>
>> Subject: [Farmall] 39 A: Crankshaft pulley with setscrew!
>> To: "Farmall/IHC mailing list" <farmall at lists.antique-tractor.com>
>> Date: Friday, March 5, 2010, 11:28 PM
>> My students got the front bolster off
>> and we are just about ready to get the
>> engine free of the tractor onto a stand.
>>
>> I found something I have never seen before on Cub's, Super
>> A's, etc.:  About
>> a 5/16" setscrew in the pulley.  From the way it's
>> cast, it appears that the
>> setscrew is over the keyway--the pulley has a raised area
>> like it was cast
>> to accommodate a keyway.......all way different than what I
>> have seen!
>>
>> I have to see if I can borrow the proper tools to get the
>> pulley off this
>> weekend.  We don't want to just throw a puller on it
>> and break the pulley to
>> begin with.  Now since it appears to be a tad unusual,
>> I DEFINITELY don't
>> want to break it!
>>
>> Al
>>
>>
>>
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