Subject: Need clarification on O-ring dimension
From: ACRE
Date: 5/21/2003, 8:10 PM

snips.....


-Jeff Chrysler wrote:

Hello Sirs,

After further discussion with Mark and using 11.34 as a groove
centerline
instead of an OD measurement as mentioned earlier, I believe a seal
ID of
11.240 will do the job. It is best to describe all 3 seals in terms
of ID
measurement for ease of future reference.

Also- if you wish to obtain a quick and permanent stretch, try
heating the
o-ring in boiling water, with a heat gun, or in a 400F or lower
oven. The
heat only needs to be applied for 10-20 seconds and from there it
can be
placed on the plywood form mentioned by Paul below. The stretched
o-ring
will be ready in minutes.

Happy building,

Jeff Chrysler


Thanks for the tip Jeff. It just keeps getting better and better.

Paul Lamar


Paul/Jeff,

I received the re-sized outer coolant o-rings yesterday and they fit
perfect.  The tag shows a dimension of 11.230 ID.  I think there are a
few
on the list that were waiting to hear the final word on this
dimension.  So, the final dimension is .093 x 11.230 ID fits for the
outer
coolant o-ring.  This dimension forces the o-ring to the outer wall of
the
groove, so they could be a tiny bit smaller, but no larger.

Jeff Chrysler of Creavey Seal deserves a big attaboy for all his help
and
understanding.  I can't say enough good things about him and Creavey
Seal.  Thanks Jeff for all your help.

Thanks,
Mark

"Brian D. Cain" wrote:

Great stuff!  I'll be fashioning up a set of water jacket o-rings and oil
control
ring o-rings to order from Creavey here in a bit to try in my next race
engine I build.
I'll try and beat the snot out of these things and see if I can get them to
fail (doubtful).
Has Chuck Dunlap got any more hours logged on his oil control ring o-rings?
Last I saw the engine had over 20 hours on it and was still ticking nicely
w/o
any signs of crank oil blow-by.

B

 
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