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  1. #1
    Kristian Keppel Waterholics's Avatar
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    Pump Removal with a Slide Hammer

    Hey Guys,

    In a rush putting back up my pump I forgot to grease the shaft 😉

    Now I have a pump thatís stuck by the spines Iím guessing and was thinking about using a slide hammer to remove it.

    Has anyone used a slide hammer to remove a pump before?

    Have you used any other methods to remove a stuck shaft?

  2. #2
    Click avatar for tech links/info K447's Avatar
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    How long has it been since you last put the pump on?

    Is the pump body stuck in place?
    Can you get the pump body to separate from the forward portion and move a few mm rearwards?

  3. #3

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    How do you know it’s the spines that are stuck?

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  5. #4
    Kristian Keppel Waterholics's Avatar
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    Quote Originally Posted by K447 View Post
    How long has it been since you last put the pump on?

    Is the pump body stuck in place?
    Can you get the pump body to separate from the forward portion and move a few mm rearwards?
    Yes with a pry bar the pump is separating from the the wear ring a tiny bit but not enough to get it out.
    This is what makes me suspect its the splines that are stuck because I forgot to grease it.

  6. #5
    100 MILES OF HEAVEN AND I AM SMACK IN THE MIDDLE KEYZBUM's Avatar
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    Why are you pulling pump?
    I have had to remove rideplate and use a small sledge hammer to get a few pumps off, but those were real real bad..
    Have you tried pumping starter while applying pressure with pry bar??
    Never really had splines stuck in jet skis, yami jetboats is a whole nother story, but some have to be pulled with winch or come along..

  7. #6
    Click avatar for tech links/info K447's Avatar
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    Quote Originally Posted by Waterholics View Post
    Yes with a pry bar the pump is separating from the the wear ring a tiny bit but not enough to get it out. Ö
    Make sure you removed the small single bolt along the left side of the jet pump.

    I forgot about that small bolt once, ended up bending the little bolt before I realized my error. Bought a replacement bolt from Yamaha.

  8. #7
    Kristian Keppel Waterholics's Avatar
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    Quote Originally Posted by K447 View Post
    Make sure you removed the small single bolt along the left side of the jet pump.

    I forgot about that small bolt once, ended up bending the little bolt before I realized my error. Bought a replacement bolt from Yamaha.
    This bolt is on the wear ring which doesn't need to come out to remove the pump.

  9. #8

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    I made a plate with 5 holes. 1 in the center for the slide hammer. 4 to match the pump bolt holes. I used a 1/4 aluminum plate. Works well adjust the bolts to pull straight and i have removed some stubborn pumps. You can add heat to melt the sealer but go easy.

    Robert


  10. #9
    Kristian Keppel Waterholics's Avatar
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    Quote Originally Posted by rcrisafulli View Post
    I made a plate with 5 holes. 1 in the center for the slide hammer. 4 to match the pump bolt holes. I used a 1/4 aluminum plate. Works well adjust the bolts to pull straight and i have removed some stubborn pumps. You can add heat to melt the sealer but go easy.

    Robert
    Wow that’s an amazing idea. I think I wanna make one of these just to have.

    Fortunately I saw that the flex I was getting was from the fire wall flexing. So I welded two angle irons into a U to slip over the coupler to stop the flexing and was able to pry it out.

    If you have any pics of the slide hammer I would love to see it.
    Last edited by Waterholics; 10-27-2021 at 11:54 AM.

  11. #10
    Kristian Keppel Waterholics's Avatar
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    What anti seize do you guys use to stop the splines from sticking?

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