Quote:
Originally Posted by PAUL K
I disagree that .002 clearance will not make a difference. There are millions of General Motors cars that would agree with my thoughts.
I'd also bet that .002 clearance going the other way will make a difference and a big expensive mess of things.... JMHO
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In the case of the OP's situation, the extra clearance shouldn't amount to more than a light "rumble" when the engine is cold. But I agree with you on the modern engines, especially Honda. They spec. ZERO piston to wall clearance as OK on many of the new 4-cylinder engines as a minimum. The piston skirt coating begins to wear off on start-up and creates the "optimum" piston to wall clearance according to their service info. Man, that's tight tolerance.