Rebuilding jacuzzi wj?
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Rebuilding jacuzzi wj?

  1. #1
    Senior Member 71kona's Avatar
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    Default Rebuilding jacuzzi wj?

    anybody done this at home, i figure rebuilding it for $250 for now is better then not doin it at all untill i can afford to blow $1600 on the energizer kit, any advice, pictures maybe? what would i need to do this?
    this boat will be the death of me

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    blown mopar moparjet's Avatar
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    very easy, may need a press to get the impeller off. ther is no set up just put wear ring in and go
    throw it in reverse

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    Senior Member Brendellajet's Avatar
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    Quote Originally Posted by moparjet View Post
    very easy, may need a press to get the impeller off. ther is no set up just put wear ring in and go
    Not True!

    It can be done at home. But there are a few steps you need to be concerned with.I've never seen a manual on one, but the berk manual will give you the right idea. Hopefully somebody ditched the plastic wear ring before you got it.

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    NW Spectraholic Malcolm's Avatar
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    Quote Originally Posted by Brendellajet View Post
    Not True!
    Really??? All the ones I've seen still have the plastic wear ring. How you gonna set that up? I've built mine before, not much to it. Just takes 4 seals. Hopefully the bowl bushing is OK, they're expensive.
    Malcolm

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    Senior Member jetboatperformance's Avatar
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    71 Kona ,this is a simple jet to overhaul or repair post up questions or problems you may encounter or call if you need help Tom

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    Senior Member 71kona's Avatar
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    now this is the first time i have had to deal with a worn out jet, so if i rebuild this jet with the new seals and wear ring will that help me get up on plane faster? possibly be more efficient? and is the energizer kit worth the money when the time is right?
    this boat will be the death of me

  9. #7
    NW Spectraholic Malcolm's Avatar
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    The energizer is only said to be 10% more efficient than a stock WJ. I don't think that's worth the cost.

    Are you sure it's worn out? Does the engine rev up and you not go anywhere? You might just have an engine problem slowing you down. That's way more common than a bad pump.

    If it really does have bad performance, check out the impeller for nicks and missing pieces on the intake side, then remove the bowl and see what the outlet side looks like. If it's boogered up, send it to MPD or some other jet shop to be repaired.
    Last edited by Malcolm; 04-09-2008 at 01:14 PM.
    Malcolm

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  10. #8
    Senior Member 71kona's Avatar
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    it takes for ever for me to plane, once im on plane its all good, also, i can wiggle the nozzle from side to side about an inch or so
    this boat will be the death of me

  11. #9
    NW Spectraholic Malcolm's Avatar
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    Sounds like back when I first got my boat running. Turned out the secondaries on my 4 barrel weren't opening.

    What RPM does the motor spin up to?
    Malcolm

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  12. #10
    Senior Member Brendellajet's Avatar
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    Quote Originally Posted by Malcolm View Post
    Really??? All the ones I've seen still have the plastic wear ring. How you gonna set that up? I've built mine before, not much to it. Just takes 4 seals. Hopefully the bowl bushing is OK, they're expensive.
    You can shim the impeller, index the bowl & if the wear ring is plastic either upgrade or atleast make sure the clearances are proper for starters. The bowl register on most suction housings are pretty sloppy, depending on the wear ring clearance care needs to be taken to make sure that when bolting the bowl on, the impeller spins freely without making contact with the impeller. You can half ass it and bolt it together and hope it works out or take your time and do it right and know its good.

  13. #11
    NW Spectraholic Malcolm's Avatar
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    Not sure how you'd shim the impeller, they're tapered to the shaft. And why would you want to? Honest, they work fine without getting half the machine shop involved.
    Malcolm

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  14. #12
    NW Spectraholic Malcolm's Avatar
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    Quote Originally Posted by Brendellajet View Post
    I've never seen a manual on one
    And before you get too carried away, I have a manual for the WJ.
    Malcolm

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  15. #13
    Senior Member 71kona's Avatar
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    my boat spins about 5200rpm, the motor seems to be runnin with no problems, it just does not want to get on plane, when its up it runs awesome, its just gettin there that drives me crazy, and were can i get a wj manual
    this boat will be the death of me

  16. #14
    NW Spectraholic Malcolm's Avatar
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    Northamerican Marinejet owns Jacuzzi.
    http://www.marinejet.com/

    Have you looked in the intake for junk stuck in the impeller? Mine gets little pieces of bark and grass in it sometimes and refuses to go. Doesn't take much to make them cavitate. I just find it hard to believe it's that worn out. Mine ran the same right up until the front bearing went out. When I finally pulled it down the impeller had missing pieces and was still working pretty good.
    Last edited by Malcolm; 04-09-2008 at 10:25 PM.
    Malcolm

    75 Spectra 18
    77 Spectra 19 project

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