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  1. #1
    PWCToday Newbie
    Join Date
    Nov 2016
    Location
    Ontario Canada
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    20

    Help water in crankcase

    we have 2 770's. Had both out a few weeks ago.
    both ran fine. Been back on the trailer since.
    now one has water in the crankcase. Lots of water. Squirting out the spark plug holes when we crank it.
    what to do?
    how did water fill the engine?

  2. #2
    Frequent Poster
    Join Date
    Oct 2013
    Location
    Ohio
    Posts
    296

    Re: Help water in crankcase

    Did you have water in the hulls at any time during the ride? Did you flip that one over? Did you run it on a hose after the last trip out? How long between the last outing and the discovery of the water?
    2, 1998 TS 770 L, restored and running great. (Except for the one with engine that SBT put the WRONG crankshaft bearing into and is now sitting as I collect repair parts)

  3. #3
    PWCToday Newbie
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    Nov 2016
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    Ontario Canada
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    Re: Help water in crankcase

    No water in the hull, did not flip. Never ran on a hose.
    i think it sat for 3 weeks.

    But those are the things that would make sence, with water in both cylinders. I was wondering if the normal water in the exhaust could have found its way to the engine after a bumpy trailer ride?
    Last edited by shortrun; 07-01-2017 at 08:36 AM.

  4. #4
    Frequent Poster
    Join Date
    Oct 2013
    Location
    Ohio
    Posts
    296

    Re: Help water in crankcase

    I wish I had more ideas. Have you got it to start yet? I worry now about rust on the crank and bearings now.

    I always start mine after I load them on the trailer to blow out excess water from the exhaust. I have done that with every boat I ever associated with in the last 50 years.
    2, 1998 TS 770 L, restored and running great. (Except for the one with engine that SBT put the WRONG crankshaft bearing into and is now sitting as I collect repair parts)

  5. #5
    PWCToday Newbie
    Join Date
    Nov 2016
    Location
    Ontario Canada
    Posts
    20

    Re: Help water in crankcase

    Yup rust on the crank bearings will be really bad.
    It will not run yet.
    I think we should put it on the lawn, flip it upside down. Drain the motor.

  6. #6
    Frequent Poster
    Join Date
    Oct 2013
    Location
    Ohio
    Posts
    296

    Re: Help water in crankcase

    Is it possible that you towed it to the loading ramp, before you loaded it onto the trailer? Maybe you used on boat to two the other to the trailer? Or did you actually drive it, under power, to load it onto the trailer?
    2, 1998 TS 770 L, restored and running great. (Except for the one with engine that SBT put the WRONG crankshaft bearing into and is now sitting as I collect repair parts)

  7. #7
    PWCToday Newbie
    Join Date
    Nov 2016
    Location
    Ontario Canada
    Posts
    20

    Re: Help water in crankcase

    Drove the ski onto the trailer.

    I am wondering if the exhaust is cracked. Internally, from not being winterized?

  8. #8
    PWCToday Newbie
    Join Date
    Nov 2016
    Location
    Ontario Canada
    Posts
    20

    Re: Help water in crankcase

    The motor is coming out.
    No luck figuring out this driveshaft?
    is it threaded?
    Any help?
    Attached Images Attached Images
    Last edited by shortrun; 07-01-2017 at 04:35 PM.

  9. #9
    PWCToday Newbie
    Join Date
    Nov 2016
    Location
    Ontario Canada
    Posts
    20

    Re: Help water in crankcase

    Motor is out
    Still do not see where the water was getting in
    Attached Images Attached Images

  10. #10
    PWCToday Newbie
    Join Date
    Nov 2016
    Location
    Ontario Canada
    Posts
    20

    Re: Help water in crankcase

    I have been thinking about the white guey crap that came out of the motor. It was not clear water mixed with oil.

    So i am thinking that you only get this guey stuff if the water and oil are well mixed together. But i dont know if this is true.

    But if the water and oil have to be mixed up then the gue must have been made during the drive. Maybe a water leak into the cylinders??
    Last edited by shortrun; 07-01-2017 at 09:09 PM.

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