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Old 09-14-2011 | 08:02 AM
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chicky03
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Originally Posted by sammies
Hi,

When pistons have scratch marks on them, its usually on the exhaust side. Why is this so?

I just had a race last weekend, my nova flash PT siezed. I thought the rod broke. But when I took the engine apart, the whole exhaust side of the piston was badly scratched. Why?

Sam
Normally its from the engine not being fully broken in or not giving the engine enough time to warm up. Also lack of oil in the fuel.
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