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Thread: Pump cleanup

  1. #1
    Vern's Avatar
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    Pump cleanup

    I was surprised to see major crude rough 'machining marks' in the outer wall of my jet pump when I took it off to send to Skat. They appeared to be greenish, and looked like divots from a madman with a drill , er somethin. When it comes back, I was thinking very much of doing a little power sanding/smoothing on the pump ... it just does not make sense, the marks almost look like the factory did them purposefully. Anybody else have this, or clean up their pump?

    Another thing I am doing is installing a bilge pump. I can then eliminate the twin bilge nozzles from the reduction/thrust nozzle, and fill that in and smooth it out. Wondering if that might help speed a little maybe ...


  2. #2
    EZ Dock of Long Island Shibby1485's Avatar
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    check out the work that Mike did on his pump!

    http://www.greenhulk.net/forum/viewt...t=pump+porting

  3. #3
    JD 1's Avatar
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    Its not even worth it, the pump that is, I did it and no gain, if you pull the 2 bilge tubes out of the nozzle make sure you plug the holes first. Funning you say that about a bilge pump, just got done doing mine on the RXPoopnugget

  4. #4

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    JD1 with the bilge tubes out did you see any gains? Show me! OOPS Just tell me.

  5. #5
    Vern's Avatar
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    Thanks Dan, I won't waste my time grinding on it then. Not surprising ... we played with that on GPRs and the only thing it might have helped with is pump recovery and hookup, never top speed.

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