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Good explination BJ. I had never thought about the piston stopping before, but I guess it would have to at the top and bottom of the travel so it can change directions.

Learn something every day <img src="/forums/images/graemlins/patriot.gif" alt="" />


Fishtaker I will add this for you to chew on..
If your engine is turning 4000 revs.. ALL of the pistons STOP every .0075 sec. Or 8000 times a minute.. Them things take a beating.
Nascar is turning 9000 revs for 500 miles. That is stopping the piston every .0034 sec! Remember it stops twice on every rev. Usually a failure is that the piston ROD streches and gets too long and hits a valve.. It is rare that the piston itself fails.
Big Jim <img src="/forums/images/graemlins/pfft.gif" alt="" />

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