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  1. #1
    DaveC's Avatar
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    Pump pressure relief valves, when are they needed ?

    On the 08-11 Sea Doo RXP X, when do you need to be Installing them ? Also, how does the plate and intake grate combination effect when they are required.

    Wanted to ask this now instead of going through a pump stuff and then asking about it.


  2. #2
    dnielsen's Avatar
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    There are so many variables to calculate when due to all the combinations of aftermarket parts and modifications for these machines. Ride Plate, stock, modded, shimmed and etc. Grate, stock, Worx, R&D, Riva, and etc. Engine power plays a factor, prop pitch, the type of nose cone used, nozzle type, with or without a pump extention, rider style of riding, chopping the throttle vs easing up. Lake or waterway conditions, some have reported stuffing occurring only when they hit slow rollers in the water. The list just keeps going!!

    I have felt a slight stuff at 78 while running the Work grate and PRVs with the Riva pump extention. My opinion would be that any X in those year models are prone to stuffing, and yes there were some reports of the stockers stuffing.

    There is a thread here that is called "Anybody want to talk about the relief valves" that is full of good info. I wanted to share the link tonight but can't seem to get the Search feature to work.

  3. #3
    DaveC's Avatar
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    Thanks for the info ! I also tried the search function again today with the same results.

    I am using the R&D grate and stock rideplate. Beginning to look at options such as the SFR plate mod or others that may be available. Currently, if everything is perfect my X runs 75. From previous searches I believe that most called for relief valves in the mid to upper 70s.

  4. #4
    dnielsen's Avatar
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    The Riva grate stuffed at 77-78 with stock ride plate. If you go with a modified plate then don't take the risk without the PRVs.

  5. #5
    DaveC's Avatar
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    I have not seen the valve kit in person, only pics of assembled skis with them. Do they mount to the pump or the the pump shoe ?

  6. #6
    dnielsen's Avatar
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    I'm running three 1" PRVs on mine and still never chop the throttle. Funny how this topic came up today, I went riding today and managed to loose one of the poppets out of one of my PRVs. Water was choppy and I was letting the ski hang out. The poppet must have been working overtime and snapped the nut off the stem and spitting it all out. Never felt nothing until I started to pull off. Pump cavitated like hell and the ski would not get up on plane. I was finally able to hold the throttle at high rpm and it grabbed an took off, went straight to the trailer. Ordered some new valves and springs to modify. The Home Depot valves will work once they have been unshrouded and the springs changed.

  7. #7
    dnielsen's Avatar
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    Quote Originally Posted by DaveC View Post
    I have not seen the valve kit in person, only pics of assembled skis with them. Do they mount to the pump or the the pump shoe ?
    Pump shoe ahead of the prop. Once the search function is working the thread I mentioned is full of information!

  8. #8
    DaveC's Avatar
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    I am sure they will have the search function fixed soon

    Thanks again !!


    Quote Originally Posted by dnielsen View Post
    Quote Originally Posted by DaveC View Post
    I have not seen the valve kit in person, only pics of assembled skis with them. Do they mount to the pump or the the pump shoe ?
    Pump shoe ahead of the prop. Once the search function is working the thread I mentioned is full of information!

  9. #9
    wotxxxsd's Avatar
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    Good to know before a stuff happens.
    I watched a buddy stuff at 81-82mph.

    Had we not been there to help him I hate to think what would have happened.

    It's not something I ever want to see again.
    It's like he hit the ejection button...

  10. #10
    dnielsen's Avatar
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    Here it is I found it.

    http://www.greenhulk.net/forums/showthread.php?t=142488

    Take time to read the entire thread.....

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