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  1. #1

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    How does beach sand get in here ?? :(

    Hi,

    How does beach/sea sand get on the inside of the PTO bearing assembly

    This is a sand and oil paste...

    What would be the next step here ?




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  2. #2
    ABBOTT's Avatar
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    Riding the ski on land vs water will do that. May want to clean thoroughly, put new grease in it and keep the ski in water when riding. Preferably a foot or more of water works well.

    Are you going on shore with your ski and not cutting it off? You may need to be checking lots of other parts around drive shaft and pump/prop area too for damage. If you have open loop cooling, then this is the beginning of a very long journey.

  3. #3
    EVN81's Avatar
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    Wow
    This is first time shaft comes out?
    I would at least pull the complete PTO cover and clean / inspect the oil pump / filterscreen what's located in the PTO cover.
    Last thing you want is sand in your oil system!

    This is the PTO seal your looking, not the bellow boot which holding carbon seal.
    I cannot imagine how sand can possibly come there.......

    While you have the PTO cover of, also upgrade the flywheel bolts

  4. #4

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    The carbon seal was replaced by an authorised dealer about 60 hours ago... he had the shaft out then...

    I wonder if he maybe did not assemble everything with the sand ?? As I can't think of a way that sand could actually get in there once assembled...

    The ski is used once or twice a year for deep sea fishing, then I usually have to beach properly if there's a pushing tide... so this involves a 5-10m beach drive

    But for the rest of the year, the ski is being used on a fresh water dam...

    So I would say 80% fresh water and 20% salt water...

    I'm stripping everything now to upgrade to the 2011 shaft...

  5. #5
    ptscon's Avatar
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    No water in the oil? Oil cooler leak could potentially cause something like that.

  6. #6
    This is how I run a jetski shop in the desert nmpeter's Avatar
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    Quote Originally Posted by SinWolf View Post
    Hi,

    How does beach/sea sand get on the inside of the PTO bearing assembly

    This is a sand and oil paste...

    What would be the next step here ?
    so you still haven't figured that out yet?



    obviously the entire area needs to be properly cleaned and then reinstalled Should check the bilge siphons to make sure they aren't clogged up too.
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  7. #7

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    Quote Originally Posted by ptscon View Post
    No water in the oil? Oil cooler leak could potentially cause something like that.
    No, new intercooler also fitted 60 hours ago (Fizzle)... Oil service done about two weeks ago, no water in oil.

  8. #8

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    Quote Originally Posted by nmpeter View Post
    so you still haven't figured that out yet?



    obviously the entire area needs to be properly cleaned and then reinstalled Should check the bilge siphons to make sure they aren't clogged up too.

    I can't figure out how the sand could get on the inside of all the seals... No amount beaching could get the sand past those seals and the beering ??

    Or am I missing something here ?

  9. #9
    African-American
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    The sand is under pressure and forced through the system, the force of the sand under pressure will easily cause it to go behind the seals.

    Pretty much that extra 5-10m of beaching your high pressure sandblasting everything.

  10. #10

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    Quote Originally Posted by spaceman View Post
    The sand is under pressure and forced through the system, the force of the sand under pressure will easily cause it to go behind the seals.

    Pretty much that extra 5-10m of beaching your high pressure sandblasting everything.
    Yes, I understand the theory...

    But with the location of the sand, there is no path for the sand to travel here even under high pressure... If it travels up the shaft and manages to get past the carbon ring, then it will end up in the hull...

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