[AT] JD B resurrection contemplation

[Dean VP]

The approach I suggested does take time and a lot of patience. But not
having to open up the engine is a real benefit.  An example, the  60 that I
was successful with had set out in the rainy Northwest without a cover on
the muffler for over 20 years. I soaked it for a long time (I had other
priorities that were higher) and tried to turn the flywheel daily with a
bar.  One day I was stunned to notice a little movement.  Wasn't long and I
was getting full revolutions. That tractor runs really good.

Dean VP
Apache junction, AZ

It's better to be judged by 12 than carried by 6. 

-----Original Message-----
From: at-bounces at lists.antique-tractor.com
[mailto:at-bounces at lists.antique-tractor.com] On Behalf Of Spencer Yost
Sent: Wednesday, April 05, 2017 3:46 PM
To: Antique tractor email discussion group <at at lists.antique-tractor.com>
Subject: Re: [AT] JD B resurrection contemplation

Not to be a wet blanket on all of this stuck piston fun, but I would say a
solid three out of five pistons I get out of a bore are unusable for one
reason or another. Either the bore is in such bad shape the engine has to be
rebored and fitted with new pistons, or the piston ring grooves are in
horrible shape, etc.  Turning the engine upside down on the stand and
cracking the off the top of the pistons is something I tend to do more of
these days:  Takes five minutes and the pistons then come right out :-)  I
do realize some replacement pistons are very expensive, and that determines
how hard I try before taking the easy way out.

I did unstick the engine in the Massey Harris mustang one time with a
concoction of diesel and ATF.  Took about a month with nearly daily
woodblock pounding(crankshaft had been removed).  I must admit it cleaned up
nicely and ran great afterwards.  That engine was the exception. Many of the
old list members remember my restoration of the Pacer. I tried everything
for months to get those pistons out and I never could.


Spencer Yost



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