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  1. #1
    dan725's Avatar
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    #2 piston rings excessivly worn {05rxp}

    Ok, I figured I before i build my (squid) a squid {ihear is the only thing that can kill a shark (jaws) } Is that enough trash talk for ya Jeff . anyway i performed a leak down test on all three cylinders 12% on #3 28% on #2 and 10% on #1 when I pressurized #2 i could hear gurggling in the oil, Soooooo I yanked the motor and tore it down. After very close inspection the rings were pretty tore up meaning the ring was almost Knife edged and the width of the ring was 10k less than the other rings out of #1hole and #3hole. The boat is/ was stock not sure of the hours but #1and #3 cylinders and pistons and rings all look great any advice why #2 cylinder seamed to take alot of abuse??


  2. #2
    GTXX's Avatar
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    did you check piston/bore clearances? with a feeler gauge is good enough on teardown. if the clearance is big the piston will rock in the bore and make the rings look funny.

    squid, jaws. that's funny....

  3. #3

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    Quote Originally Posted by GTXX View Post

    squid, jaws. that's funny....
    It is funny...too bad....I don't HAVE to pull my motor

  4. #4
    dan725's Avatar
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    yes the piston rocked a little more than the other 2. But after measuring everything the only diff was the2 top rings were almost 10ksmaller[thinner] I expected,the ring groves to show some excessive wear but checked the same as other 2 {good}. Since I,m changing out the injectors{fuel}. Which someone suggested I check for leakage. The next thing is the piston oilers. So as i fight with the banjo screw witch i think dirtysanchez warned me about,hopefully I'll find some dirt in there, and that will be problem solved. If not what else???? I think jaws might have pulled his motor more than once. the sqid is comming for you

  5. #5
    GTXX's Avatar
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    Quote Originally Posted by dan725 View Post
    I think jaws might have pulled his motor more than once. the sqid is comming for you
    not in the ski he has today

  6. #6

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    Quote Originally Posted by GTXX View Post
    not in the ski he has today
    Have NOT even taken the valve cover off.

  7. #7
    dan725's Avatar
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    really what are you waiting for,

  8. #8

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    Quote Originally Posted by dan725 View Post
    really what are you waiting for,

    If the sewing machine works...I'm NOT going to break it.

  9. #9
    at 28% i would have left it alone unless u r looking 4 all out proformance

  10. #10
    dan725's Avatar
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    oh-well to late it's out thanks

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