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Toofah King Bad
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Wastegate Gasket
Looking for the round asbestos-looking gasket between the lower iron part of the wastegate and the upper aluminum can (or, reasonable alternative). I was originally thinking heat insulation was the primary purpose for the part, but then realized a boost/vacuum leak could also result from this gasket failing.
How hot do you think the top of the WG gets? I am looking at different materials, one being teflon, which is supposed to be good to 500°. Thanks, Rasta
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» 1987 924S - Pro44 Race Car • 1987 924S - Got Boost? « "DETERMINATION. Sometimes cars test us to make sure we're worthy. Fix it." - alfadoc |
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Manassas, VA
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There was a Pelicanite that was making those gaskets. He told me to use two of them and some copper gasket spray during reassembly. It worked great and I have never had a leak since then.
I think the pipe would go over 500 degrees when the waste gate valve lifts. Mark
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1991 964 Polar Silver Metallic Turbo Coupe |
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Registered
Join Date: Jul 2008
Location: Central Washington State
Posts: 3,893
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Pretty common failure part on stock WG's. Mine was leaking there as well, and I gooped (sandwiched) some sort of high-temp epoxie there as a short term fix. Pretty crude, yeah, so don't flame me. But it worked until I lost confidence in the WG due to valve guide excessive clearances and leakage there. The solution: Tial
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Mark H. 1987 930, GP White, Wevo shifter, Borla exhaust, stock everything else. The result of a massive Pelicanite good will fire recovery effort. Truely an open book, ready for the slippery slopes to modification. |
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Toofah King Bad
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Well, the Tial will have to wait until I win the lotto. I actually have a new valve guide, so the gasket is all I need to do a good refurb.
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» 1987 924S - Pro44 Race Car • 1987 924S - Got Boost? « "DETERMINATION. Sometimes cars test us to make sure we're worthy. Fix it." - alfadoc |
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