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Nick in piston


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Whilst decarbonizing this piston I discovered two nicks in the valve recess. Does this render the piston unserviceable?. The piston is from a replacement engine that I have not seen or heard run. I checked the valves in the head that came with the engine and there is no evidence of piston valve contact. The scuff marks and scratches are also a mystery. I used a blue shop towel and carb cleaner to remove the carbon, so there not from me. Thanks.





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It does look like something got caught between the piston and head at some point, but given the minor damage personally I would run the piston if all else was well. Any marks on the head to indicate if it happened with the head on or off?

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