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  1. #1

    Jet Pump impeller Help

    Hello any know what would cause a 1998 yamaha XL760 impeller to start hitting the housing after not being used after sitting for a year.
    I just rebuilt my carbs and when i went to start the ski it was frozen wouldn't crank i took off the intake duck assembly and jet pump and the impeller was stuck to the housing. (The ski started fine with out the jet pump on)
    I got the impeller free and it looks good no dings or chips. I spined the shaft with the impeller and it seems to spin nice and smooth i tried looking for bearing play and it had none.
    After cleaning the blades with sand paper a little i put the housing on and it spined freely.
    when i assembled it back into the intake duck assembly the impeller starts to hit the housing again. can anyone help me out with this



    Thanks
    BadBoy


  2. #2
    fx160's Avatar
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    very normal for the housing to swell causing it to hit the impellor
    you can just ride it and it will wear the impellor as it swells
    or you can get a new liner fitted
    if you go for a new liner you will probably also a new impellor
    as it will be worn from the old liner

  3. #3
    Quote Originally Posted by fx160 View Post
    very normal for the housing to swell causing it to hit the impellor
    you can just ride it and it will wear the impellor as it swells
    or you can get a new liner fitted
    if you go for a new liner you will probably also a new impellor
    as it will be worn from the old liner

    Thanks will try and see if it will go away after use.


    Thanks
    badboy

  4. #4
    Moderator OsideBill's Avatar
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    It will go away as soon as the impeller wears down, you need to get a new housing

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