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  1. #1

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    How-To: Flushing the open loop cooling for winter

    This is the setup I’ll be using to flush the open loop cooling in my rxp for winter. I tested it with water only and it worked fine. The water inlet hose has to be removed and the reducer connected to it, then connect the bilge pump hose. Mix the antifreeze to the correct temperature in a 5-gallon bucket. Put the bilge in the bucket, start the engine, connect the bilge to the battery…when the antifreeze comes out the exhaust disconnect power to the bilge and shut off the motor.

    This will flush out water in the cooling system that may freeze and cause harm to the intercooler, exhaust manifold and other parts.
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  2. #2
    Site Admin MikeTrin's Avatar
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    Nice work.

  3. #3

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    From the Service Manual
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  4. #4

    Join Date
    May 2005
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    St. Louis MO
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    Do I need to be concerned about winterization for my RXP this winter? I live in Dallas and temps will get below freezing sometimes! Also Plan to ride at least one time a month with a wetsuit in NOV,DEC,JAN,FEB, and more in March!

    You may think I am nuts but I practice in Rain, snow, Hot or Cold doesn't metter for my races next Spring!

  5. #5

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    Jul 2005
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    Coral Springs
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    here

    http://www.sea-doo.net/pdf/sbs2005-011-en.PDF
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  6. #6

    flush outlet

    just go right to the flush connector..no need to remove any hoses. Grab a femail connector 3 ft hose. a bucket filled with plumbing antifreeze. Through the bilge pump in the bucket, start the engine and connect the bilge..thats it very simple

  7. #7
    Quote Originally Posted by 007rxp View Post
    just go right to the flush connector..no need to remove any hoses. Grab a femail connector 3 ft hose. a bucket filled with plumbing antifreeze. Through the bilge pump in the bucket, start the engine and connect the bilge..thats it very simple
    What do you mean "plumbing antifreeze" ?

    Is it the pink bio-degradable antifreeze they sell for fresh water systems on boats and RV's ?

    Or do you mean just plain old regular automotive antifreeze?

    Does the suction of the flush connecter pull the antifreeze up through the line in the bucket?

    Thanks, Tim

  8. #8
    plumbing antifreeze..for rv's,pools cottages ect.. non toxic and cheap. you will need to empty about 1 gallon into a bucket. Buy a bilge pump hook it up to the flush connector. thats the only way you will pump all the fluid throught the whole system untill you see it coming out of the exhaust while the motor is running.

  9. #9
    Quote Originally Posted by 007rxp View Post
    just go right to the flush connector..no need to remove any hoses. Grab a femail connector 3 ft hose. a bucket filled with plumbing antifreeze. Through the bilge pump in the bucket, start the engine and connect the bilge..thats it very simple
    And that would take care of the entire cooling system without having to disconnect any other hoses to pour antifreeze in it ?

    It almost sound like winterizing a boat engine. Except with a boat engine, you take the hose from your seacock inlet and place it in a bucket of anti-freeze. You don't need to forcefully "pump" it in since the intake impeller suctions it through the hose.

    I assume there is no such suction impeller on the ski cooling system.

    Is that correct ?

    I have a GTX Limited - Does this procedure still work for my ski?

    Thanks, Tim
    Last edited by pratzert; 10-29-2007 at 01:46 PM.

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