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  1. #1
    resident guru codybrown's Avatar
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    Mar 2007
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    Doing crank seals, have damaged O-ring

    So I tore my engine apart to do crank seals tonight on my 550, and discovered I have a damaged o-ring. What are my options here? Remove it, replace it with a new o-ring (I'm assuming the crank had to be disassembled), or get some cut seal and glue it together?

    2x 1990 550SX
    2001 Superjet
    2003 Superjet
    2015 Backie Chan
    1995 Seadoo SP


  2. #2
    PWCToday Regular Attacking Mid's Avatar
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    Re: Doing crank seals, have damaged O-ring

    The o-rings on the center spacer are available from Kawasaki. They can be stretched into place without disassembling the crank. I wouldn't have believed it if not for several posts claiming it so. You feel like you're going to break the o-rings, but they do stretch.

    AM.
    Last edited by Attacking Mid; 06-23-2016 at 12:45 AM.

  3. #3
    PWCToday.com Is My Home Away From Home Bruce in SB's Avatar
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    Re: Doing crank seals, have damaged O-ring

    Or you can get O ring stock and superglue the ends together .... typical for large non-rotating applications
    "Thanks" to Chris Newmiller @ Newmiller Machine

  4. #4
    Frequent Poster
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    Re: Doing crank seals, have damaged O-ring

    As Bruce said, I've cut them at an angle and superglued with success but if you already have it torn down, stretch it over the connecting rod. It will stretch.

  5. #5
    PWCToday.com Is My Home Away From Home MrSki's Avatar
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    Re: Doing crank seals, have damaged O-ring

    Just get the right O-rings and stretch them over the webs and rods. I do it almost daily, unfortunately due to high performance break downs.
    1993 Laser Jet F15 - Mild port to PJS Cylinder.
    1992 550 SX - R&R port Kawi Reed, Kind of fast.
    1989 JS 550 - PJS motor Dual 46's, 50 MPH on GPS.
    1989 Wet Jet - Upgraded 1994 50 HP motor & exhaust.
    1986 JS 550 - Engine built. Working on fiberglass!
    1976 JS 400 - Pretty much just a shell.

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