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  1. #1

    Stripped impeller and shaft, shaft rubbing on carbon ring.

    I've got a 2011 GTS. around 350 hours. The splines are almost completely stripped on the impeller and the drive shaft. After I pulled the pump and shaft I noticed wear on the shaft and found it had been rubbing on the carbon ring. Is my engine way out of alignment or did the play caused by the loose spline allow the shaft to float into the carbon ring. The pump was not loose when i pulled it off. bearings and wear ring look good. Wear ring has very minimal and even wear.


    Thanks guys


  2. #2
    This is how I run a jetski shop in the desert nmpeter's Avatar
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    sounds like a lack of grease/service at the impeller end of the driveshaft,

    running hard with no grease for a hundred hours or more could conceivable lunch the shaft

    has the engine been removed..motor mount changed?

    Stock impeller?

  3. #3
    Quote Originally Posted by nmpeter View Post
    sounds like a lack of grease/service at the impeller end of the driveshaft,

    running hard with no grease for a hundred hours or more could conceivable lunch the shaft

    has the engine been removed..motor mount changed?

    Stock impeller?

    When you mention grease on the impeller end o the drive shaft are you referring to the actual splines being greased. It did seem a little dry but the grease there was in there was grey with metal dust. The pump was in awesome shape just the impeller carbon ring and drive shaft were damaged. I don't think the engine has been removed but the timing chain was changed under warranty. I assume they do that with the engine in the hull. It is the stock impeller.

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