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To: Rotary motors in aircraft <flyrotary@lancaironline.net>
From: Bulent Aliev <atlasyts@bellsouth.net>
Subject: Exhaust flange gaskets
Date: Wed, 24 Jan 2007 18:22:44 -0500

I posted this on Paul's site, but somebody here may benefit also:
When I tried to get new metal exhaust gaskets for my 13B I almost had  
a stroke. $90+ each. So, i got me think'n
and looking around my hangar. Found left overs from my firewall  
insulation material Fiberfrax:

"Fiberfrax
A new material made from washed ceramic fibers with binders added to  
form a lightweight, flexible asbestos-free insulation. Withstands  
temperatures to 2300 F. Excellent for aircraft firewalls."

  So, I used the metal gasket and cut 4 copies from the material.  
Used the old metal gaskets with one of my fresh super secret liners  
on each side. It works better than advertised. 100% leak free even  
with my 1800F EGT's. Removed them after few hours and they were  
perfectly white on all sides with no signs exhaust gasses penetrating  
out. Only draw back is every time you remove the flange, you must cut  
new liners. They compress and stay that way.

My hangar mate races rotaries and his buddies and engine builders  
started asking how to get this "magic" stuff.  Aircraft Spruce is the  
place.
Send all royalty checks to my Paypal account, or I'll sue!
Buly