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  1. #1

    Need help with pump issue

    Went out for a test run today. When we first got there, all was good, it seemed to 'hook' good and really GO when you get on the throttle.

    As time went on, it got worse, still intermittant though, but it would feel like it would free spin. If we were cruising along just before planning, then give it some throttle to plan and get up some speed, it would bang the rev limiter. If you eased up on plan it would be ok, once there, you could pin the throttle and all was fine.

    THe only thing I think it could be would be the wear ring, but that doesn't explain the intermittant part. I did flip the ring since it's been sitting up.

    It's still got a stock prop. There is a Riva grate on it, other than that, the driveline is stock.

    Maybe something I didn't do right when putting the pump back on???


  2. #2
    Site Admin Green Hulk's Avatar
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    Sounds like you need a new wear ring. Your impeller nose cone may have walked up the shaft though.

  3. #3
    I did notice that when turning by hand sometimes the ring would turn with the prop.

    Also .. the prop wasn't spinning completely freely. I could turn it by hand, but had to put forth some effort. Normal???

  4. #4
    Just ion case anyone else has a similar problem ... I found mine. I had forgotten a seal in the pump that goes against the pump housing. I guess that's why it felt like it just gave loose when coming out the hole.

    FWIW the ski runs like a bat out of hell now.

  5. #5
    EZ Dock of Long Island Shibby1485's Avatar
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    yup, that'll do it good find, glad to hear it was a simple one. I've forgotten that dumb seal myself a few times

  6. #6
    Gotta love this sport! 05Limited's Avatar
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    BWAH HA HA HA ha ha haaaa........... so have I

  7. #7
    At least I don't feel as bad about it now.

    Something else I noticed is the little collet that screws into the prop thats on the shaft. It's to close up the gap where the shaft goes into the prop. I dunno if that was really hurting, but in theory it shoud certainly help.

  8. #8
    Resident Jicky Jack Jeff C's Avatar
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    Quote Originally Posted by Shibby1485
    yup, that'll do it good find, glad to hear it was a simple one. I've forgotten that dumb seal myself a few times

    What dumb seal are you talking about?

    I didn't know there was a seal that you had to do anything with. Everytime I have had my pump out, the only thing I see is the rubber seal on the pump support.


    Am I missing something here?

  9. #9
    Site Admin Green Hulk's Avatar
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    Quote Originally Posted by 05Limited
    BWAH HA HA HA ha ha haaaa........... so have I

    me too

  10. #10
    Resident Jicky Jack Jeff C's Avatar
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    Quote Originally Posted by Jeff C
    Quote Originally Posted by Shibby1485
    yup, that'll do it good find, glad to hear it was a simple one. I've forgotten that dumb seal myself a few times

    What dumb seal are you talking about?

    I didn't know there was a seal that you had to do anything with. Everytime I have had my pump out, the only thing I see is the rubber seal on the pump support.


    Am I missing something here?

    Am I?????????

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