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  1. #1

    xp 1996 jet pump

    xp 1996 787
    i am in the middle of changing my pump oil. plastic pump. i have stripped it down (still in ski) i can see the wear ring but im not sure how worn it is or should i just pull the pump and replace it? i dont no when it was last done but the oil was nice and green and didnt look that old. i can see that my pump is on with black silicone was this standard or has someone else been in there??


  2. #2
    flyin' the friendly skies airbornexp's Avatar
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    sounds original to me... you should see no more than the width of a dime. check the edgesof the impeller also. if it is damaged you may consider replacing it

  3. #3
    ok i will take some pics what would damage look like? i can see that the ring is plastic and its got groves init

  4. #4
    20 feet Boy's Avatar
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    Make sure you don't cross thread the Allen bolt in the impeller cover, when you re fill it up with oil. It happen to me and it filled with water. Even after putting loctite on it. Lucky I caught it in time and just had to replace bearings and seal and impeller cover.

  5. #5
    RumRunnerRon's Avatar
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    Quote Originally Posted by 20 feet Boy View Post
    Make sure you don't cross thread the Allen bolt in the impeller cover, when you re fill it up with oil. It happen to me and it filled with water. Even after putting loctite on it. Lucky I caught it in time and just had to replace bearings and seal and impeller cover.

    I drilled/tapped my cone for 1/4npt solved the whole cross thread issue. Keep in mind I have a 155mm pump and the cone is different but if his cone is already cross threaded might as well give it a try. Only other thing I recommend is pressure testing. Let's you know that the front seal is good and that you haven't rolled the o-ring on the cover.

  6. #6
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    ok i have now removed the pump from the ski... with a big wiggle the glue come free.. i have removed the rubber seal off the impeller and taken out like a washer???

    now theres not that many groves in the plastic ring but should i just change it anyway?/
    i need to remove the impeller whats the best way to do this..
    the pump bearings feel fine..

    thanks

  7. #7
    2000 GPRXP 4tec shooter98xpl's Avatar
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    A vice and an impeller tool. Also, if you don't want to put sealant back on to seal the pump to the transom go to your local hardware store and buy you some 1/4" foam with the sticky back. Put the sticky back inside the transom and then when you bolt the pump down causes a seal. Makes it easier to take the pump on and off. No mess to clean either.
    The cone on the back of the pump is removed, but that bottom side down in the vice and lock it in place. Then use the impeller tool to take the prop off the pump. If your prop is not to dinged up, you can take a file and file the rough spots and reuse. If you have a feeler gauge, stick it between the prop and wear ring to get a measurement of the gap. I think its .008 to .0015 is the stock clearance.
    SHOOTER

  8. #8
    my prop is already off its still in the ski

  9. #9
    when i put the new wearing in.. will the impeller cut its way into the new wearing?

  10. #10
    flyin' the friendly skies airbornexp's Avatar
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    what do you mean?if your refering to the grooves thats from driveline vibration and turbulance thats normal. if the prop is wobbeling I would replace the bearings ifyou think that itsgoingto cut deep groves.

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