|Subject:||RE: RE: De-luxe valve caps||Date:||Sun Sep 1 11:11:17 2013|
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Just like your BMW exhaust nuts, those DeLuxe valve caps need regular application of anti seize as a part of regular maintenance.
I think modern alternatives to asbestos make sealing more difficult. The copper crush washers are not the same from aviation supply.
In the KJ intakes I've been using a spiral wound S.S. gasket good to 1800F that has cured leaks and have the same design in the works for DeLuxe valve plugs. The gasket is ideal in that it can be compressed and conforms and springs back. Although I don't know how re-useable they may be in the DeLuxe yet.
I did have a conversation with Bill before I made valve plugs to get a green light before I made my offering, so they are available. I needed some for 2 engines as the old ones are either thread worn or cracked enough to make repairs uneconomical