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  1. #1

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    Feb 2012
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    Running a 155mm pump on a hull that's normally 159

    Hopefully someone has the answer.

    The story-
    Are the pump shoes equal on both the 07 rxp 155hp and the 215hp?
    I know the 155hp runs a 155 mm. And the 215 is a 159mm pump wise.
    But pumps are the same, seems wear ring is only difference.

    I have a complete 155mm pump, and 155Hp motor electronics etc and I want to put into my 08 rxt hull. But it was a 215HP. So will the pump work correctly or cavitate badly due to the 2mm all the way around "bump" where it's reducing to 155mm.

    I have eveything else I think figured out and this is the last thing in question.


  2. #2

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    Or am I better to run the 159mm pump. And have impros custom pitch a prop

  3. #3
    Quote Originally Posted by ChrisFiore15 View Post
    Or am I better to run the 159mm pump. And have impros custom pitch a prop
    I gotta hear this! Struggling my self on a little build here.

  4. #4
    For a NA motor the 155mm liner.

  5. #5

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    OK, so now the question is .
    can i run a 155 liner pump... in a 2007 Seadoo RXT 215(so prior that ski had a 159... (

    Worried aboue pump shoe not lining up right w pump and causing cavications or something.

    i know it bolts on properly.. but want to make sure there is not an underlying problem.

  6. #6
    The pump shoe is 155mm on the 215 RXT, so it will not cause any issues.

  7. #7

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    Excellent thanks !

  8. #8

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