Mailing List lml@lancaironline.net Message #63177
From: <Sky2high@aol.com>
Sender: <marv@lancaironline.net>
Subject: Re: [LML] IO550-N Leaky valve covers
Date: Wed, 17 Oct 2012 08:43:30 -0400
To: <lml@lancaironline.net>
Adam,
 
I use silicone gaskets on my 320 valve covers and, once the cover screws were tightened to 9 inch pounds (or so), they have remained leak less for the last 6 years.
 
Grayhawk
 
In a message dated 10/16/2012 9:19:51 P.M. Central Daylight Time, Adam@ValidationPartners.com writes:

Even after replacement, my valve cover gaskets leak. I am using the stock TCM p/n 655705A gaskets, which appear to be a heavy paper impregnated with something. I’ve re-tightened the valve cover screws, but the leaks keep coming back, especially on the exhaust valve covers. Will the gaskets eventually compress and seal properly? Should I try gasket sealer? Has anyone had better luck with aftermarket silicone gaskets?

 

Thanks,

Adam Molny

Lancair Legacy N181AM

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