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Pressure check: Cooling and Crankcase

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  • Pressure check: Cooling and Crankcase

    Is it possible to pressure check either the cooling or crankcase with a 97 XP 800 engine still in the hull?

    I guess the cooling system would be, but crankcase would need carbs and exhaust removed?

    I rebuilt the engine last year (25 hours) ago, and it held pressure fine then. And just didnt want to risk destruction.

    What do most engines fail from? I guess carb and water/rust issues?

    Would you more exprierenced guys do a pressure check after 25 hours? Just a everyday rider. No racing, or high jumping. Always flushed and oiled and sprayed after everyweekend of riding.

    Thanks Guys.

  • #2
    Re: Pressure check: Cooling and Crankcase

    you can check both in the ski , but no big need to if its running good or unless you see leaks . most engines fail due to lack of up keep the seat or hood should come off before and after every ride to inspect things .
    PRIDE IN SERVICE<br /> <img src="http://www.sbtontheweb.com/images/forposts/4609/1.jpg" alt=" - " />

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    • #3
      Re: Pressure check: Cooling and Crankcase

      Gday mate,

      Good to see there is another aussie on this forum:emoticont....About your question.....you could remove your carbs and exhaust and use block off plates to pressure check the engine. It's a bit of work-but if your worried about air leaks in your crank case then it could be a valuable indication of a potential problem. But, you say that your engine was just rebuilt and it only 25 hours old....Unless there is something to indicate that there is an air leak, then i wouldn't start pulling things apart. You can use a compression tester to test the compression in the cylinders. If you take care of your craft then it should be ok.......A lot of PWC's do actually have tiny air leaks.....the fact that they are not modded of their titt**ies means that they can remain operational and reliable. Once you start the heavy modification, air leaks become a big problem. I'd consider doing a crankcase compression test at say 100 hours, or at the same time as getting the carbs rebuilt. That way you are getting 2 things done at the same time without creating unnecessary work for yourself.

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