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Re: GT6 Thrust washer question?

To: <spitfires@autox.team.net>, <mikeross@Prodigy.net>,
Subject: Re: GT6 Thrust washer question?
From: "Nolan Penney" <npenney@mde.state.md.us>
Date: Thu, 27 Sep 2001 08:52:29 -0400
As I recall, you purchased this engine from someone who supposedly
was a good engine rebuilder or such, correct?  If so, the evidence
is pretty clear that they were not an up to snuff rebuilder of GT6
engines.  I'd consider action back that direction, unless too much
time has gone by.

In any case, I'd do quite a bit more examination of components before
simply buying a bare block and attempting to swap components into
it.  Many other components have been stressed as a result of the 
loss of the thrust washers, and the improper installation would give
me grave concern about other components that were used in the
rebuild.

>From wear on the timing chain and sprockets by the forward motion
of the crankshaft, to worn out lifters being reused and piston rings
being installed upside down.  I'd examine everything closely and 
compare the cost of building a new engine myself from old parts, 
vs purchasing a shortblock outright.  

>>> "Mike Ross" <mikeross@Prodigy.net> 09/26 5:47 PM >>>
Unfortunately, after removing the oil pan I found the two thrust
washers.  They were worn differently indicating that the rear one had
been install backward.  The rear bearing cap was severely worn, the
journal of the crank was smooth and highly polished.  The thrust
flange on the crank was worn, but looked repairable.  I put photos of
the affected parts on my website at:
http://pages.prodigy.net/mikeross/TW.html .  At the bottom of the
first page are links to two others.  The consensus appears that I need
a new block, but can reuse the crank.   I'm going to get a spare
engine from Ted Schumacher for the block for around $250.

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