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Subject: Re: [FlyRotary] Oil Seal Gasket vs Sealant   was FlyRotary] Re: The
 adventures of Chris and Dave..
Date: Thu, 12 Jul 2007 16:06:32 -0400
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Ed, and group,
I Spoke to the engineers at Permetex and they said in an oil exposed=20
seal surface, "Use the Ultra Black silicone." This formulation provides=20
good resistance to both engine oil and ATF. I did the transmission in=20
the car with this after another product leaked. The Ultra Black hasn't=20
leaked a drop in 20,000 miles.
Bill Jepson

----Original Message-----
From: Ed Anderson <eanderson@carolina.rr.com>
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Sent: Thu, 12 Jul 2007 12:50 pm
Subject: [FlyRotary] Oil Seal Gasket vs Sealant was FlyRotary] Re: The=20
adventures of Chris and Dave..


I find this discussion about sealant Vs gasket interesting. My "Plugs=20
Up" installation has the engine sitting on its side, so naturally the=20
oil flows right across the seam of the oil pan and block. I use the Red=20
RTV sealant for sealing and have for six years. When I tried (early on)=20
a gasket, I found that the gasket eventually soaked through and=20
dripped. So I guess I am really surprised that with the engine in its=20
normal orientation (with the oil pan on the bottom) that some are=20
having problems with leaks.=A0
=A0
I would suggest a close examination of the fit between pan and the=20
mounting plate. One way is to stick a light bulb in the oil pan (remove=20
oil first) and then put the pan on. If you see any light around the=20
seam then you may have a dented, ding or mussed up surface causing the=20
leak.=A0
=A0
Ed=A0

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