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Oil in the bilge , Sea-doo 3 seater

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  • Oil in the bilge , Sea-doo 3 seater

    My Seadoo has sat covered unused 2 seasons . .before Winterizing 2017, added marine fuel stabilizer and ran in..
    Then fogged the cylinders and topped of the oil tank, pulled drain plugs to hull ect.
    So I uncovered this weekend , starts ok - wont keep running at low RPM in the water, but has lots of snap when the rpm hits 3000. I expect new plugs will remedy. Will find out very soon.

    My concern was the purple oil fresh in the bilge. My Sea-doo guy is on vacation next 8 weeks. he told me on phone the tank may be split along the seem. he said that is common. And the tank is half full , but filled before winterizing.
    He said look at both ends at the oil lines. See if they are leaking.

    I do not know what to look for or where to look for it. All i see is a fill tube to oil tank . I have the small compartment where you would put docs and keys uncovered as well as the front cargo basin removed and the seats out. I do not see where the oil from the tank feeds to.

  • #2
    Your seadoo guy is dead on, its the tank of lies. Had an old doo and the tank cracked and had a real slow leak and was hard to see. Found it but feeling around on the tank and finding the wet spot. Same goes with the lines, have to feel around
    94 Formula 27PC Custom 509MPI MEFI3 , B3 XR
    95 Rinker 232 w/ 7.4L Carb 0F425011 B1 0F486471
    07 Seadoo GTX
    Merc Adults Only VP Adults Only
    G-Dad always said "First Liar doesn't stand a chance"

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    • #3
      Thanks post #2. I will keep looking for the lines. Could a temporary remedy, if it is the tank could I just run it half full / empty and just keep an eye on the oil level? I think the motor is the 951.

      A bit OT - is spark plug gap .20 or .16? Did a google search. Seems opinions vary widely .Suggestions here?

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      • #4
        Yes, 1/2 full works, we did that for a while waiting for the tank to come in

        Never said what model you had, but if its a GTX or GTS DI gap between .022 with BR8ES. Plugs come out of the box at .029
        94 Formula 27PC Custom 509MPI MEFI3 , B3 XR
        95 Rinker 232 w/ 7.4L Carb 0F425011 B1 0F486471
        07 Seadoo GTX
        Merc Adults Only VP Adults Only
        G-Dad always said "First Liar doesn't stand a chance"

        Comment


        • #5
          That should get me by until the tank is replaced. I'd went and bought plugs right after I posted & gapped the plugs at .020 and snugged them.
          I may pull them and re-gap , or let them burn down to .022 (?)
          Apparently I was off a decimal point on the post #3 !

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          • #6
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            The book does call for .020 but most gap at .022 and I would say your fine either way

            Easy fit .020 comes to about .022
            94 Formula 27PC Custom 509MPI MEFI3 , B3 XR
            95 Rinker 232 w/ 7.4L Carb 0F425011 B1 0F486471
            07 Seadoo GTX
            Merc Adults Only VP Adults Only
            G-Dad always said "First Liar doesn't stand a chance"

            Comment

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