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  1. #1

    SLT750 driveshaft seal

    I'm in the middle of replacing the driveshaft seal on my ski. for the life of me I can't get the pump and driveshaft off. any tips?

    the bolts are off, all the clamps are loosened... but its on there good. any help is appreciated.


  2. #2
    She likes the bike. But the ski gets her wet!!!! xlint89's Avatar
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    Hopefully you only removed the 4 long BOLTS, not the nuts from the hull.

    Also the steering linkage and trim linkage needs to be removed.

    Then remove the siphon tubes from the venturi.

    After that, it's a pull and a wiggle.

    If it's never been off before, or if you ride salt water, it may be a beotch. So you may need to give it a smack with a rubber mallet or something similar.

    CAUTION: it's only aluminum, so don't get hammer crazy.....

  3. #3
    yep, pulled the long bolts, the linkages and hoses are off. It will not budge for anything! tried the rubber mallet, tried wiggling it lose. there is absolutely no movement, or play on the driveshaft or the the venturi

    my next move was tow straps, but that sounds like a way to break something. Any ideas?! should I spray it down with pb blaster?

  4. #4
    Click avatar for tech links/info, donation request K447's Avatar
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    Quote Originally Posted by nbuzz View Post
    ...It will not budge for anything! tried the rubber mallet, tried wiggling it lose. there is absolutely no movement...
    Did you get the pump nozzle off?

    Use a length of 2x4.

    Slide it up one side of the pump all the way to the front, then gently lever the pump body a little to one side.

    Then put the 2x4 on the other side, and work it back the other way.

    You don't want to move the pump a huge amount, just a 1/2 inch or less each way.

    After a few times back and forth, it should be ready to come off. It may still be partially stuck, so be ready for when it lets go!

    The drive shaft mayor may not come out with the pump. If it doesn't, just slide the shaft straight back to get it out, with maybe a little wiggling if it hangs up on the through-hull bearing.

  5. #5
    yes the steering nozzle is off, that was the easy part. but I tried the 2x4 and nothing. didn't budge at all. I don't know what the deal is, I'm getting kinda scared that I won't be able to get it off.

  6. #6
    any ideas? my last attempt was: brake rotor puller hooked on the venturi pump and a 2x4 wedged between the hull and the puller. i had pretty much my whole body weight on it and IT DIDNT BUDGE..wtf?

  7. #7
    Click avatar for tech links/info, donation request K447's Avatar
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    Quote Originally Posted by nbuzz View Post
    any ideas? my last attempt was: brake rotor puller hooked on the venturi pump and a 2x4 wedged between the hull and the puller.

    I had pretty much my whole body weight on it and IT DIDN'T BUDGE..wtf?
    Give us a couple of clear photos of the pump area, so we can be sure you have the correct bolts removed.

    I use a 6 foot or longer 2x4, and choose a strong one so I don't break it

  8. #8
    ok, here should be a couple photos
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  9. #9
    thanks K447 and xlint89 for your help. I guess I wasn't using a big enough 2x4 for leverage...haha I guess "go big or go home" is the right saying here..

    but I was able to pry it off, and the new seal is now in and Im ready to ride. thanks guys!!

  10. #10
    Click avatar for tech links/info, donation request K447's Avatar
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    Quote Originally Posted by nbuzz View Post
    ...I guess I wasn't using a big enough 2x4 for leverage...haha I guess "go big or go home" is the right saying here..

    but I was able to pry it off, and the new seal is now in and I'm ready to ride. thanks guys!!
    Did you check the impeller bearings while you had the pump off?

    And add grease to both ends of the impeller shaft?
    And check the drive splines?

    Make sure you grease that new through-hull bearing well. After the first ride, put one or two more squeezes of grease in.

    Add another squeeze after each ride, for the next few rides. Then you will know there are no air pockets, and any water that may have seeped in will be driven out.

    Enjoy the water

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