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  1. #1
    Blackhawk36's Avatar
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    Impeller and Wear Ring

    2015 SeaDoo GTX iS Limited. The ski doesn't hook up like it used to. The ski gets lent out too much. See the attached file. Is that enough damage to the impeller and wear ring to impact acceleration very significantly?
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  2. #2
    JT jpt7779's Avatar
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    Yup, and your pump shoe has obviously eaten some rocks also.......

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    moparguy's Avatar
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    Props not looking too healthy either

  4. #4
    Blackhawk36's Avatar
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    JPT, Is this what you mean by the pump shoe damage? The word "shoe" doesn't appear anywhere in the factory service manual. Could it be called something else
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    Last edited by Blackhawk36; 09-14-2018 at 09:27 AM. Reason: Elaboration

  5. #5
    E.U. Premier's Avatar
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    Quote Originally Posted by Blackhawk36 View Post
    JPT, Is this what you mean by the pump shoe damage? The word "shoe" doesn't appear anywhere in the factory service manual. Could it be called something else
    The pump design in a Seadoo is ‘axial flow’. An ‘impeller’ with twisted vanes in a pipe with an intake and discharge area.

    ‘Shoe’, to describe the pump housing, is not an engineering term.

    Pump performance is a science and even what we may consider to be minor damage can have a great impact on performance.

    I learned the hard way: Swim your craft into a min of 4ft of water and idle forward until you have 10. No heavy throttle until you’re in deep water.

    Coming back in, kill the engine as soon as possible -you don’t want stones being pulled of the shallow floor and colliding with the innards of your propulsion system.

    Anyway, your impeller has some damage. That’s probably where the issue is. Hard to tell how badly the ‘pipe’ damage is affecting the performance but it may well be affecting fluid dynamics too.

  6. #6
    JT jpt7779's Avatar
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    part 22 Pump support is commonly known as the pump shoe.

    http://partsfinder.onlinemicrofiche....20-%20INTERNAL

    In your photo, 10 o'clock there are numerous perferations in your pump shoe. Like I said somebody ate some rocks and caused all of this damage!

  7. #7
    Blackhawk36's Avatar
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    Thanks JPT. That is helpful. I won't be doing the repair for about two weeks but I will post the results.

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