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Re: 360 Thrust Bearings

Subject: Re: 360 Thrust Bearings
From: Mark J Bradakis <>
Date: Fri, 22 Nov 2002 15:41:20 -0700 (MST)
What I've done to Spit 1500 engines ( 2/3 of a TR6 ) is have the machine
shop cut a groove in the back of the main bearing cap which matches the
thrust washer groove in the block.  Then install a couple of pins in each
half, drill matching holes in regular half circle thrust washers (hint -
drill some holes in the next oversize at the same time, it will save
some trouble getting them to match when replacement is required) and
away you go.  There is some difference of opinion in the pin material
used.  Soft pins won't dig into the crank when the thrust bearing surface
is gone, the crank will get destroyed in the usual manner of trying to machine
it's way through the bearing cap.  Hard pins will destroy the crank before it
gets destroyed in the usual manner.

Only doing the back side is sufficient, as that is what takes the load
from declutching.


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