I've rebuilt motors without using this tool and a some with it. Either way I
don't seem to get any oil leaks. I think that part of my success is that I
take my time and insure that everything is clean and fitting okay (flush and
in the same place as it was originally if I don't have the tool handy). Given
a choice, I'd use the tool, but it's not the end of the world if you don't
have it.
My tool was made by Bob Schaller (of Desert Centre TRA fame), and I think it
was the one that TRF used as a pattern for their own tool that came out in
the late 80's. Bob made a few changes to the factory manual tool to make it
easier to use (mostly cosmetic changes).
Bruce Clough
cloughbt@batman.flight.wpafb.af.mil
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