[AT] resurrection contemplation

Herb Metz metz-h.b at comcast.net
Thu Apr 6 03:32:48 PDT 2017


Don’t remember Spencer's piston details but do remember his trying to find 
"thin glass" so he could restore a damaged gauge.
Herb


[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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