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Help me figure this out...please

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Heard a knocking sound so I took the head off and found a 1/4 long pin stuck in the piston. I figured it was a needle from a bearing but no such luck. Its smaller than the ones in the balancer and bigger than the ones in the oil pump shaft. Also cant figure out where it came from..no cylinder,piston sides , crank, case or valve damage...pic is blurry but if ya got any ideas I'd appreciate it

1009111411.jpg

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Was it on top of piston? Had to come through intake. Possibly from carb? Looks like a roller pin from the slide.

As soon as I read this the light bulb went off....you are correct...Thanks

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Just had this happen to my 06.  I wasn't so lucky. Bent valves

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Found this post after the fact.  Took me a while looking through the fiche to come up with the slide as the probable source.

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