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  1. #1
    auto culto's Avatar
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    Stubborn jet pump removal - 780 SLX

    780slx. Day 3 now of soaking with penetrating and forcing. All bolts etc have come out first time with no effort but I can't break the pump housing seal. I have tried the 2x2 plank to force it but am reluctant to get heavy handed with it as the housing looks like it could crack easy.

    Any sugestions or just keep at it ? How strong is the housing ? I definitely need to strip it as the prop is in poor cond.
    Last edited by K447; 03-13-2013 at 11:17 AM.


  2. #2
    Banned User
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    I doubt you will break it. Use a 2x4 for more leverage. It will flex less than a 2x2. Just use steady even pressure and it should pop free.

  3. #3
    urugol's Avatar
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    Apply heat with a propane torch. That never fails.

  4. #4
    Click avatar for tech links/info, donation request K447's Avatar
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    Do you have the steering and pump exit nozzles removed?

    Have you seen this thread showing how to lever a long 2x4 to crack the pump free from the pump base?

    How to remove and re-install the Polaris 148mm jet pump

    YouTube - Polaris PWC 148mm jet pump removal

  5. #5
    auto culto's Avatar
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    Done it. Got mad and used a 6ft scoffold pole. Have now found out the drive shaft and crank coupling are fubar. So thats stuffed up that job big time. no wonder when I gave it a 30 min water test it hit the rev limiter instantly and slowly picked up speed.That proberbly explains the noise I first posted about. So I now need a second hand driveshaft and coupling if thats possible in the uk otherwise its scrap. If thats the case that I cant get the parts without spending big money I will just weld it up solid and ride it till it dies.

  6. #6
    BlueFishCrisis's Avatar
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    Quote Originally Posted by auto culto View Post
    Done it. Got mad and used a 6ft scoffold pole. Have now found out the drive shaft and crank coupling are fubar. So thats stuffed up that job big time. no wonder when I gave it a 30 min water test it hit the rev limiter instantly and slowly picked up speed.That proberbly explains the noise I first posted about. So I now need a second hand driveshaft and coupling if thats possible in the uk otherwise its scrap. If thats the case that I cant get the parts without spending big money I will just weld it up solid and ride it till it dies.
    I would imagine you could come up with a shaft and coupler here in the states for around $50. Looks like shipping would be around $70-90 USD depending on which coupler / drive shaft combo you get....

  7. #7
    auto culto's Avatar
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    Quote Originally Posted by BlueFishCrisis View Post
    Quote Originally Posted by auto culto View Post
    Done it. Got mad and used a 6ft scoffold pole. Have now found out the drive shaft and crank coupling are fubar. So thats stuffed up that job big time. no wonder when I gave it a 30 min water test it hit the rev limiter instantly and slowly picked up speed.That proberbly explains the noise I first posted about. So I now need a second hand driveshaft and coupling if thats possible in the uk otherwise its scrap. If thats the case that I cant get the parts without spending big money I will just weld it up solid and ride it till it dies.
    I would imagine you could come up with a shaft and coupler here in the states for around $50. Looks like shipping would be around $70-90 USD depending on which coupler / drive shaft combo you get....

    I may just have to do that if I cant come up with anything over the next week. I was hoping to use it at easter but that plan has gone out the window. Ah well nevermind.

  8. #8
    BlueFishCrisis's Avatar
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    Regular pump or extended?

  9. #9
    auto culto's Avatar
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    Quote Originally Posted by BlueFishCrisis View Post
    Regular pump or extended?

    I have no ideal, as I am new to jetskis. how do I tell the differance ?

  10. #10
    David Drkvampire2001's Avatar
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    If its an extended pump it will have a 4 inch extension between the hull and the stator. would you be able to take a picture of the pump tunnel from behind your ski.. tha would give us a good idea if you have extended pump or not

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