[AT] JD B Problems - An Update

[charlie hill]

Steve there is too much metal mass there for your plumbers torch to do any 
good, even with MAP gas.
You need an acetylene torch and a rose bud tip.  Heat the disc not the 
shaft.  Keep working the heat
round and round the disc just outside of the shaft.  If your puller is the 
type that has a screw that screws in
against the center of the shaft tighten the puller as tight as you can. 
Then take a big hammer and hit the
head of the puller bolt as hard as you dare.  Then tighten it some more. 
Try the bees wax.  It can't hurt.

Charlie

-----Original Message----- 
From: The Allen Family
Sent: Tuesday, August 06, 2013 12:38 PM
To: AT at lists.antique-tractor.com
Subject: Re: [AT] JD B Problems - An Update

First, I want to thank everyone who has chimed in with advice and ideas to 
help me with this old B.  I am especially grateful for those who suggested 
drilling out and rethreading the hole in the clutch disk rather than trying 
to drill completely new ones.

I have purchased a new 1/2" tap and matching drill bit, and I am looking for 
a good, heavy-duty puller, as the one I have won't accommodate the bigger 
cap screw.

Thinking about Dean's question about whether the disk moved at all, I find I 
am not sure.  It felt like it, but I have come to realize that the disk was 
never flush with the end of the crank, and that feeling may have simply been 
the puller starting to slip.  I will not be able to assess the condition of 
the splines till I have it off.  I have done this before on this tractor, 
but it was never so hard before.  I have seen beat up splines and crank 
ends, but I don't *remember* them being beat up on this one.  Still, I think 
Dean is onto something.

I have been hitting the thing with penetrant at least once/day since.  Now I 
am thinking about application of heat before/during the pull.  That disk is 
a pretty good chunk of cast iron.  I don't know whether my plumber's torch 
will do it (though I do have some of the extra hot gas).  I had been worried 
about buggering up the disk by trying to use the acetylene torch, but, since 
the disk is broken, that's no big deal.  Bill suggested I have the disk 
repaired--and I still might if I can get it off without more breakage--but 
getting it off is the first step.  I have found a replacement for $75 if I 
need it.  I am still worried about the big torch and the end of the 
crankshaft, however.  I have not used a big torch just to heat parts up, so, 
if anyone has advice, I'd be glad to hear it.

THE WAX TRICK:  I have used that on bolts with great success, but I don't 
know it would be applicable here. . . .

I haven't done much more with the tranny yet, figuring one step at a time on 
this part of the project.  I have been hitting everything in sight with 
penetrant, however, just as a prelude.

In any case, thanks for all the help so far and any to come.

The "original" Steve Allen
Fighting with a B near Rolla, MO

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