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  1. #1
    JLewis's Avatar
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    wear ring gap? how much?

    hey guys, got major cavitation problems on my 00 GPR. PPK is on the way but looking at my prop with some feeler guages, i found that there is .010" clearance between prop and wear ring all the way around. Is that way too much? and is that one of my main cavitation issues?


  2. #2
    This is quoted directly from one of Impros recent post>>>>

    "The least gap between the impeller and the liner the better. .007-.010" per side is doing real good. If you get beyond .020" per side, you're losing efficiency and performance."

    I would say your fine.

  3. #3
    WATER WOODY's Avatar
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    Quote Originally Posted by porksword View Post
    This is quoted directly from one of Impros recent post>>>>

    "The least gap between the impeller and the liner the better. .007-.010" per side is doing real good. If you get beyond .020" per side, you're losing efficiency and performance."

    I would say your fine.
    There it is......mines at .007,you are good with .010

  4. #4
    JLewis's Avatar
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    Cool, thanks guys for the input. i'll what to see how it does after the PPK is installed. i takes off like there is 10lbs of weeds stuck up in there.

  5. #5
    Moderator RX951's Avatar
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    thats good, yur fine


    manual specs>
    Impeller clearance mm (in) 0.35 ~ 0.45 (0.014 ~ 0.01

  6. #6
    Is there supposed to be a gap at the back of the liner where the pump halves come together I have one, about an 8th of an inch. Just seeing how deep into this pump I need to go.

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