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Piston had indentation mark

  • Thread starter Thread starter Anonymous
  • Start date Start date
A

Anonymous

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The exhaust valves rammed into one of my pistons and made indentations and it has sharp edges sticking out on the outside of these indentations. What kind of file, or whatever should I use to debur this?
 
You should be able to use some emory paper to sand the marks off. If you can remove the piston before sanding so that nothing will get in the crankcase, wash the piston good before reinstalling
 
Keep in mind that any material you remove will change the weight of the piston. It is possible to remove enough to throw the crankshaft assembly out of balance. If it's not much material, you might be ok.
 
Be sure to look close at the underside of the piston, if it hit that hard look for stress cracks directly under where the valves hit
 
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