SBT Jetski Engines, Parts & Accessories

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  1. #11
    Joined
    Apr 2004
    From
    HUMBLE /ATASCOCITA TX
    Posts
    763

    Default Re: clanking noise!!!!!

    The noise is NOT caused fron the impeller blades hitting the housing as the previous post suggested. The noise is created fron the driveshaft splines inside the impeller having no load and (clanking) around with every revolution of the engine as the piston rod rotates the crankshaft. The noise is not made with a constant load on the driveshaft splines when in the water.
    WATERCRAFT SERVICES. PROVIDING THE RESIDENTS OF HOUSTON AND SURROUNDING AREAS WITH QUALITY WORK ON THEIR PWC AT A FAIR PRICE.

  2. #12
    Joined
    Aug 2005
    From
    Strong Island New York!!
    Posts
    34

    Default Re: clanking noise!!!!!

    so i shouldnt bother takin the drive apart an checkin out the bearings? Cuz when i pulled the plugs an tried to turn it by hand i could only turn it a 1/4 way then the rest i had to use an open end wrench, an i could hear metal to metal contac an i rotated the shaft.

  3. #13
    Joined
    Jun 2002
    From
    Charlotte NC
    Posts
    1,868

    Default Re: clanking noise!!!!!

    On a 10 year old ski you should pull the pump and replace the bearings and seals as part of normal service to the ski every 4-5 years. If they go out you are talking hundreds to replace everything that gets damaged.
    Providing mobile JetSki service to the Charlotte / Lake Wylie area.

  4. #14
    Joined
    Jan 2018
    From
    Bunbury
    Posts
    4

    Default Re: clanking noise!!!!!

    I had a customer come in with a suspected failed jet pump on his Seadoo GTX 4tec S/C. I put the impeller housing on our stand and removed the cone and then used an electric drill to turn it over no noise other than from the drill. The bearings still had grease in them. We replaced the pump and it still had a “tinny ringing sound”. I have heard that this is because they are not submerged in water to act as a cushion. We checked the impeller clearances and it was within spec.

  5. #15
    Joined
    Jun 2016
    From
    Clearwater, Florida
    Posts
    279

    Default Re: clanking noise!!!!!

    usually just a tiny high spot on an impeller blade tapping the wear ring makes a ringing sound.

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