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  1. #1

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    2001 RX Pump rebuild

    I just changed the wear ring a little over 20 hours ago (2 years ago) during which time we checked all components for wear and replaced the pump oil. It was running just fine till last weekend.

    Pushed if off the FVP, started idling, and it was cavitating. Thought maybe i sucked something up but checked and all was ok. Hopped back on, tried accelerating more, heard squealing / squawking. Returned to dock, still nothing found in the intake or jetpump.

    Towed the ski to ramp, put it on the trailer. Pulled the pump yesterday and found the contents of the nose cone all melted and plastic shavings. No seal. Also found impeller able to move from front to back of the pump about .5 inches and metal bearings falling out.

    What is the likelihood I damaged pump shaft and housing? I haven't taken it apart yet.

    Pics attached.Click image for larger version. 

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  2. #2

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    The only usable parts most likely is the impeller, the spring inside the cone, the screws w/ washers that hold the cone onto the pump, the set screw, the neoprene seal and the impeller nose cone-- that is assuming the impeller splines are in good shape.

  3. #3

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    Impeller splines and drive shaft splines are all ok. So I'm thinking I didn't do much damage (other than melt the parts inside the impeller cover cone). So you really think the housing and shaft are toast as well? I figured at least thrust bearings and such.

    What set screw are you referring to?

    Please ignore the small dings on the impeller. That happened after first installing it.

    Click image for larger version. 

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  4. #4
    If i knew,...I wouldn't ask sea-one's Avatar
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    There's your problem!! it's in your left hand! lol,kidding get a picture of the other end of the pump with it taken apart for all to see....is that the plastic pump on that RX? meaning the stators are plastic and the bearing hub aluminum

  5. #5

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    set screw is in the pump cone-- used for checking and adding pump oil. Thrust washer and bearing most likely are toast as the pump shaft moving .5 inches is not good-- the shaft will mushroom over and eat into the pump housing and deform the thrust washer and destroy the bearing. Take it apart and check it out. The wear ring looks fine, but being after market, it would be on my list to replace w/ oem that fits the pump correctly-- I've tried the SBT $25 wear rings and was not impressed-- I ended up giving them away (2).

  6. #6

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    Removed the impeller and the shaft came right out of the bearings and the bearings stayed installed.

    I can see where the bearings are missing in between teeth but the shaft appears intact, although rusty. I sprayed some CRC on it to clean it
    up. The thrust washer is still intact, so I'm not sure that it needs to be replaced as well.

    Click image for larger version. 

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  7. #7

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    I have used aftermarket wear rings in my skis -- although I'm not a crazy rider -- and never had a problem. Reality is it's plastic, and as long as it has proper clearance and is installed properly, what difference is there really? If it arrived warped, and the clearance wasn't checked, that's something else. I have always installed it and spun the impeller around checking clearance. I have had this ski since new with zero hours.

    Are you a seadoo dealership? LOL. Anytime I hear the only oil you can use in your SD is SD, it makes me laugh. If there is something better why not use it?????

    I don't know everything, which is why I am here....but I have owned skis since 99. I have used and know others who use aftermarket wear rings which seem to hold up better than the SD. My SD ones were needing replacement every 30 hours even though I wouldn't suck anything up. The time before I rebuilt it, I paid Perry Pilfering Group over $300 to rebuild it after I already pulled the pump myself and reinstalled it afterwards. i was told I had new bearings, new shaft, and all new parts in the cone. After looking at the condition of the bearings and parts, I now wonder if the parts were actually replaced.

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