Topica Loopframe_Guzzi Archive


Subject: RE: EX. Leaks

Author: Zerhackermann .

Date: Oct 25, 2001, 1:22 PM

Post ID: 1708699089


I am sure it does to a certain extent, but it tends to expand where the
metal is (i.e. push along the circumference of the port) and that makes it
open up. Probably not entirely accurate, but this is why you heat the
race/journal and freeze the bearing when installing a new bearing.






 From: Greg Field <gfie-@pop.mindspring.com>
Reply-To: Loopfram-@topica.com
To: Loopfram-@topica.com
Subject: RE: EX. Leaks
Date: Thu, 25 Oct 2001 12:31:40 -0700

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I guess when I tightened mine hot I was thinking that the exhaust port was
a
larger size than normal,


I guess this is what I was really asking.

As the aluminum of the head "grows" with heat, doen't it expand in
all directions, which would mean the circumference (inside) of the
port would actually shrink?

Where's a mechanical engineer when you need one?

GF

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