Check the surface of the header (Extractor) flange with a straightedge. If
it is warped excessively you will get a leak. Some headers have a weld
bead around the seal side of the tubes and may cause leakage if not even.
In this case it is necessary to have individual holes in the gasket for the
center exhaust ports.
If the head is flat and the header is flat then one normal gasket should
At 11:57 AM 8/5/02 +1000, Marko Lahtinen wrote:
>I'm having difficulty getting my extractors to fit
>properly and not leak. It was suggested that I
>replace my single gasket with a thicker one made of
>two gaskets that have coppercoat in between them - so
>I have bought extractor gasket material (with a metal
>layer) and slowly cut out two new exhaust manifold
>Before I fit this monster of a gasket, does anyoe on
>the list have any advice on this. My head is clean as
>are the faces on the extractors. I tried tightening
>the nuts as much as I could but to no improvement.
>64 1500 with R16
>http://digital.yahoo.com.au - Yahoo! Digital How To
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