Rick:
My experience has been that a thin smear of Hylomar over the
mating surfaces takes care of the leak issue. As for the stripping the
threads, there is no doubt that steel is superior to aluminum. My
sealing block was heli-coiled long ago, so that is no longer an issue
for me.
It is clear that this is a weak spot in the engine design, but I
think viable solutions have been available for quite some time, and one
need not pop for a steel replacement. I am not certain that steel would
fix the leak issue by itself, either. But if you want durability, it is
the way to go.
As for the coefficient of expansion, aluminum will expand more
than iron or steel. When contemplating this, I can only conclude that it
is not a major concern. My reasoning is that since the sealing block
uses *wood* to form the final seal, it is a hack of the first magnitude.
Anything designed of steel CAN'T be any worse <grin>.
Vance
-----Original Message-----
From: owner-6pack@autox.team.net [mailto:owner-6pack@autox.team.net] On
Behalf Of Rick & Lori O
Sent: June 08, 2005 4:52 AM
To: 'Bruce Simms'; 6pack@autox.team.net
Subject: RE: Improved engine front sealing block - Good Idea?
One's gotta wonder if there is a technical reason for Triumph
specifiying
aluminum in the first place. Thermal expansion characteristics?
Rick O.
72 TR6
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