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Walt Fricke Walt Fricke is offline
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Join Date: May 2004
Location: Boulder, Colorado
Posts: 4,949
Porsche Crest

About ten years ago my SC started running hot. Racing, it would sometimes run strong and qualify well, but the power (measured against other cars) would fall off. Leakdowns were never as bad as yours, and were sprinkled around rather than just in one bank. A teardown revealed some broken rings. It is hard to imagine you don't have broken rings (which probably means you will need new Ps and Cs - in my case this was an excuse to upgrade to Nikasil, but you are already there I think).

I've got no ideas better than those already advanced as to why one side and not the other, but with plugs that look the same (making a restriction in the flow to the fuel rail on that side less likely to be the cause).

I never did figure out why I had the broken rings, but the problem has not reoccurred with the new Ps and Cs. And I did add a center valance front cooler, which really keeps oil temps down.

Walt Fricke
Old 09-06-2005, 08:39 AM
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