Help with piston ring orientation
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Thread: Help with piston ring orientation

  1. #1
    Junior Member bigwilly's Avatar
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    Jan 2019
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    Help with piston ring orientation

    Hello!

    I'm in the process of replacing my base gasket, and whilst I'm in there I'm freshening up the top end.

    I've got the manual, but the piston ring end-gap placement seems a bit vague. Can someone point me in the right direction please?

    Screenshot 2019-04-19 at 20.48.31.png

    I'm happy with the end gaps, but which way is the cylinder facing? And where does the expander ring go?

    Cheers!

  2. #2
    Senior Member elime's Avatar
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    Jul 2010
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    San Jose, CA
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    This is what Wiseco encloses for their high compression piston. Did you upgrade or are you keeping it stock?

    P7060031.JPG
    JerseyJeeper and Fred like this.
    Long live the internal combustion engine!

  3. #3
    Senior Member buellzebub's Avatar
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    Breedon on the Hill, UK
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    When I fitted mine I oriented them as per the diagram below so that the top ring was at the rear LEFT when viewed from the front of the bike. (edit: I originally typed right, I meant LEFT, although it would be rear right if sat on the bike looking down on it. )
    Hope that helps a little
    Last edited by buellzebub; 04-20-2019 at 02:14 AM.

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