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  1. #1
    PWCToday Newbie tburb's Avatar
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    Exploded js550 Pump Case

    So quick back story I'm restoring a 1985 js550 that I picked up from some guy in the desert for dirt cheap. It was even running when I got it so I had the joy of riding it in Havasu before I took it under the knife.

    I've recently just been going through and finding all the things that need to be rebuilt, etc. Well to my surprise today when I took of the ride plate and pulled out the pump case I found some ultimate carnage. The case looks like it exploded, I don't know if this is a thing that happens to other people but it surprised me. Needless to say I will be needed to replace the case and most likely that whole pump as well. Should I put back in a regular 550 pump or is it worth upgrading it to a 650 pump?
    IMG_5697.JPGIMG_5698.JPGIMG_5699.jpeg

  2. #2
    PWCToday Newbie tburb's Avatar
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    Re: Exploded js550 Pump Case

    It looks like the only thing that survived was the pump outlet

  3. #3
    PWCToday.com Is My Home Away From Home Camasaki's Avatar
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    Re: Exploded js550 Pump Case

    Crazy. I can imagine if it broke while riding those pieces jacked up the stator vanes. I don't see any damage to pump in pictures. Looks like you can slap a new shoe on it and go.
    You can't drink all day, if you don't start in the morning.

  4. #4
    PWCToday Newbie tburb's Avatar
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    Re: Exploded js550 Pump Case

    Yeah that's what I was thinking as well. It was like that when I bought it and I had no clue. Believe it of not it actually rode normal but once I found it I was shocked

  5. #5
    PWCToday.com Is My Home Away From Home fastgtfairlane's Avatar
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    Re: Exploded js550 Pump Case

    take the 4 long bolts out and separate the pump so you can get the impeller off. then youll know if the stator section is damaged. the pump shoe is replacable.
    91 440; PJS Viper 7000, jetsport exhaust mani, factory full pipe, coffman waterbox,solas 17*, jetco worked 440 pump, ocean pro nozzles. shredmaster ocean rideplate and grate combo, wide tray, footholds, deep strake mod, driveshaft fill,650sx quick turn

    build thread part 1: http://www.pwctoday.com/showthread.php?t=331343
    build thread part 2: http://www.pwctoday.com/showthread.php?t=364872
    build thread part 3: http://www.pwctoday.com/showthread.php?t=396154

  6. #6
    PWCToday Newbie tburb's Avatar
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    Re: Exploded js550 Pump Case

    I did, the only thing to survive was the pump outlet and nozzle. The rock (I'm assuming that's what got sucked up) did a number on some of the zanes, decent chunks taken out.

  7. #7
    PWCToday Newbie tburb's Avatar
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    Re: Exploded js550 Pump Case

    I'll upload pics later so you guys can see.

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