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  1. #1

    Join Date
    Feb 2007
    Location
    Cincinnati
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    90

    Major Cavitation

    The ski has always had a little cavitation out of the hole but for the last couple of weeks it struggles to get on plane, then when it does my RPM at the big end is down from a normal ~8440 to about 8140, I'm running a 15X22R and put a stainless wear ring in this year along with an aquavein grate and up until the past couple of weeks its been dead nuts on topping out at 83+ and pretty decent acceleration. Did a wear out a stainless wear ring, not getting the big end issue either.


  2. #2
    boost junkie skidoochris's Avatar
    Join Date
    Mar 2012
    Location
    Davison, Mi
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    4,494
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    check grate and prop for damage or junk like fishing line

  3. #3

    Join Date
    Feb 2007
    Location
    Cincinnati
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    90
    Finally got down to the lake and took a close look at the bottom end and everything looks good. Will pull the pump over the winter to see if there's anything going on there.

  4. #4
    Site Admin Green Hulk's Avatar
    Join Date
    Apr 2005
    Location
    Morgan City, LA
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    Quote Originally Posted by sy34010 View Post
    Finally got down to the lake and took a close look at the bottom end and everything looks good. Will pull the pump over the winter to see if there's anything going on there.

    Change the pump seal
    http://www.4-tecperformance.com/inde...oducts_id=2295


    also change your carbon seal and bellow. Basically, you want items 34, 32, 33, 31, 36 and 37 from this page of the forums OEM online store
    http://partsfinder.onlinemicrofiche....TEM---INTERNAL

  5. +1 by:


  6. #5
    have seen some alot of carbon ring issues this year in the shop all the way from sinking the machine to just allowing enough air into the pump intake to make them cavitate, may be worth a visit.

  7. #6
    JoeGPR's Avatar
    Join Date
    Sep 2014
    Location
    tampa fl
    Posts
    18
    +1
    3
    check pump or pitch the prop

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