I'm at my wits--what's left of them--end. I've replaced at least a
half-dozen exhaust flange gaskets in the last couple years (the ones
that go between the exhaust manifold and downpipes). I've flat-filed
the downpipes flanges, and the manifold flanges are smooth and flat.
I've used the 'std' brass nuts and regular 5/16" with split washers and
anti-seize--which seem to work the best--but I keep blowing out the
gaskets. I've been religious about keeping the nuts torqued up.
The contemporary gaskets seem to be an unknown fibrous material
sandwiched between two thin, perforated pieces of a thin, metal-like
material--have also tried the ones made of copper donated by a generous
Lister--but no matter what I do the gaskets blow out. The filler
material--whatever it is--seems to turn to a white powder which, of
course, is not a good sealer. The latest replacements I got from
Moss--the metal is kinda yellowish--look like they might be of a
different construction/composition, but I'm leery at this point. I even
tried to get a custom copper gasket shop to make a set for me, but they
flaked out.
Anyone have a source for gaskets that don't decompose and blow out?
Man, I'd give anything for a NOS set of asbestos-filled gaskets, OSHA
be damned.
Or, will any of the goops work at the high temperatures?
TIA
Bob
--
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Bob Spidell San Jose, CA bspidell@comcast.net
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