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Thread: 787 oil leak

  1. #1

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    787 oil leak

    Guys,

    At the end of the season I noticed oil in the bottom of my hull of my 96XP. I pulled the motor, and bought new oil lines to the rave shaft gear. Ordered the oil lines form BRP, and they were way too small for the fittings on this engine. Went to the auto parts store and got the lines I thought fit nicely. I installed the lines and had the motor on blocks, so I could be sure I had the leak fixed before I sat it back inside the hull. Still leaking around where the lines are clamped to the fittings on the motor. I used 1/2 hose with worm gear clamps. Is that the incorrect size hose? Any help apperciated.


  2. #2
    Cliff's Avatar
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    If you use a thin wall tubing with a cheap worm gear clamp it can still leak. Probably need to use an Oetiker clamp to get it stopped.

  3. #3
    i used some clear pvc lines i got from home depot. they wre slightly smaller,so i heatd the end up with a lighter and they slid right on and formed to the line. then i clamped it,no issues after 5 years.

  4. #4
    Myself's Avatar
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    I usually just cut the first 3/4" off the originals then reuse them, no problems.

  5. #5
    This is how I run a jetski shop in the desert nmpeter's Avatar
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    might be a leak from the rotary valve shaft seal..hard to spot with the engine installed.

  6. #6
    demian5's Avatar
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    I lost a screw on the top of my oil pump and it was dumping oil. Replaced the screw and added locktite no more problems.

  7. #7
    wkuadam07's Avatar
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    Quote Originally Posted by Myself View Post
    I usually just cut the first 3/4" off the originals then reuse them, no problems.
    same here.

  8. #8
    olds72's Avatar
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    I had a problem with oil in my hull and filling the cylinders, it turned out to be the inner seals of the crank.

  9. #9

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    Just an update guys. The correct size oil lines is 7/16 ID. They are hard to find at any store. I had to order them off line. They are on, and it is no longer leaking

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