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  1. #1

    piston and cylinder destroyed photos what now ?

    Got the head off today and found cylinder 2 piston trashed and head has serious pitting , wave eater clips installed so how did this happen ? Looks as though Pv area was impacted , now from photos how much parts am I looking at ? Piston moves as it should but what about all the metal pieces ? Lol
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  2. #2
    silver93t's Avatar
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    It is still possible for the power valve to fall down even with the clips. I would contact Mike at pwcengines.com. He has always been fair with me.

  3. #3
    mod addict's Avatar
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    The ring land could of been impacted by detonation.

  4. #4
    Happily Self-Employed WFO's Avatar
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    ring spun around and hooked the exhaust port

    debris from ring pounded the top of the piston

  5. #5
    How does does this happen running lean ? So bottom should be fine u think new diaphragms in carb new piston head and cylinder and piston and I should be good to go ?






    Quote Originally Posted by WFO View Post
    ring spun around and hooked the exhaust port

    debris from ring pounded the top of the piston

  6. #6
    Happily Self-Employed WFO's Avatar
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    Usually happens from a lot of hours on motor, and piston alignment pin fails causing the ring to rotate around and catch the port. I would tear it all down and inspect. Crank may have debris from the damage

  7. #7
    Should I replace cylinder it's used or send out to bore out and sleev

  8. #8
    Happily Self-Employed WFO's Avatar
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    needs to be replaced... whether getting a used one or send it out for repair

  9. #9
    What should I do about the other cylinders ? While I am in there already ? Obviously Ill have to take the exhaust apart to get to everything , anything I should change to prevent any more damage ski had 160 hrs
    QUOTE=WFO;2387558]needs to be replaced... whether getting a used one or send it out for repair[/QUOTE]

  10. #10
    Update ... Removed engine from ski this is the piston damage that I found , no metal pieces in crank that I can see and appears to be fine , pre mix ski had oil lines blocked off but oil line in this cylinder had slid off ???? Issue ? , lean condition or to many hrs on ski ? 164hrs
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