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  1. #1
    Man of God brittrich's Avatar
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    Water in cylinder #3!!??

    Hey guys.

    Need ya'll big time on this one.

    2003 seadoo Gtx, 951 4stroke, 3 cylinder.

    Went riding last weekend for bout 1 1/2 hours and as usual she rode like a champ.
    turned her off to load up and she wouldn't start. Didn't think nuttin of it.
    week later I try to start her....nothing.

    pulled the plugs. Front 2 look normal. Last one, closest to the rear shows signs of slight water intrusion.
    Compression on front 2 cylinders good but about 95 on rear cyclinder.

    I suspect rust now on rings. Turns over but won't start. NEVER had a problem before now. Always well maintained.

    Question....Can I lubricate that last cylinder and run ski on just two cylinders to loosen up rings?

    Or am I looking at expensive top end job?

    thanks in advance


  2. #2
    wotxxxsd's Avatar
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    951cc is a 2 stroke 2 cylinder motor. Your talking about a 1500cc 4 stroke.
    You need to figure out why the cylinder had moisture in it and fix the issue before you fubar the motor.
    How many hours on it since it was rebuilt?
    In your sig it says 6 months ago the motor was rebuilt.
    Sounds like somebody didn't rebuild it correctly.

  3. #3
    Man of God brittrich's Avatar
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    Correct on engine. 6 months rebuilt was 2 years ago. I agree but will it run on 2 cylinders temporarily? Just need 2 heat that one cylinder up real soon

  4. #4
    wotxxxsd's Avatar
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    You can try it but i don't think it will run on 2 cylinders.
    Running it isn't going to fix the problem and could make it worse and more expensive to fix.

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  6. #5
    wkuadam07's Avatar
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    Running it without fixing the problem ALWAYS makes things worse. Pressure test your intercooler for leaks. That is your only hope that the head gasket is good, if the intercooler doesn't leak then the motor is coming out and the head need to come off. My bet is that the head gasket is leaking...or a cracked head...

  7. #6

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    Not intercooler - heat exchanger

    Pull the motor down and fix - otherwise big $$ repairs coming your way like a freight train

  8. #7
    Man of God brittrich's Avatar
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    I got that. Didn't plan to run to fix. Just to "remove" whatever rust may have settled into that cylinder. My thought was if it sits there its only going to rust more. Oh and this unit is a 4 stroke to whomever moved it 2 the 2 stroke forum.

    Thanks

  9. #8
    Myself's Avatar
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    I would spray a load of WD-40 or something like that into the cylinders and fire it off. It will smoke heavily but it will help lube the rings and burn out the moisture. I am suspecting either lots of water in the hull from a bad cable fitting got sucked into the intake, OR the head gasket went bad. IS there any water or coolant in the oil?

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