12-21-2008, 10:18 AM
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CC Member
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Join Date: Jun 2003
Location: Freedomia,,
Il
Cobra Make, Engine: Coupe,Blue w/white stripes SB; Roadster, Blue w/white stripes BB w/2-4s; SPF installer/Hot Rod-Custom Car builder
Posts: 1,376
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there was a 2 post exchange on the first page and after reading all the posts it was never revisted, I am interested. Do rings rotate on the piston or not?. I have always worked under the impression that if they do it is minimal, for 2 reasons 1) it would create more wear in the piston/cylinder wall and after pulling hundreds of engines down the wear is usually relgated to the top groove/cylinder and attributed to the heat/ring tension 2) the crosshatch used to seat the rings would act to prevent/restrict rotation. So which is it?? Usually the sticking is the ring sticking in the groove and not expanding on to the wall correctly.
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