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Isn't it possible that you are or were getting blow-by from the rings being gummed up? Did this car sit for an extended time? If so, you can search the forum for methods that others have used to clean and free up the rings. I don't think there was anything just real difficult about doing it. Maybe Seafoam or MMO or something like that into the cylinders?
It's also possible that you may have already freed up the rings just by driving it more.
Have you done a compression test yet? Please get one done and post the results here.
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John Curry (Drift King) 928OC member
Grand Prix White 1994 GTS AT (The GTS)
Black 1989 GT (The GT) and Cobalt Blue 1989 S4 AT (The Blue Car) 1986 Euro AT
Indishrot 1984 Euro S AT (The Stepson) and Black Metallic 1984 Euro S 5 speed (The Schwartz)
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