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Rex Walter Rex Walter is offline
Registered User
Join Date: May 2005
Location: Bothell, WA
Posts: 239

A perfect cylinder with no wear will have a bore diameter of 84mm for a stock 2.4L engine. As your engine wears, the bore diameter will increase. The wear limit has to do with bore diameter you are allowed to increase your bore diameter up to 84.8 mm. The ring gap must remain within the tolerances given (0.2 to 0.4mm) regardless of bore diameter.

1975 911s
1997 Saab 900s
Old 11-02-2005, 07:12 AM
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