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  1. #1
    PWCToday Newbie
    Join Date
    Jun 2009
    Thunder Bay

    Oil Leaking in Hull when sitting extended periods of time

    I have 2 tigersharks;
    1996 Daytona 770
    1996 Monte Carlo 770

    Both were purchased brand new and still look brand new! From day 1 we've always had oil leaking problems in both machines. If the machines sit for extended period (say over winter) the hull will get coated in fresh oil. Our solution was to always drain the oil before winter storage.

    We've taken the oil tank out an inspected for cracks, etc and nothing.

    Does anyone know where this oil can be leaking from? Every spring/fall i need to degrease and clean the hull, would be nice to not have to do that... after 21years lol

    I figure there is something common as both machines do the same thing, and its just enough oil to make a mess of the bottom of the hull.

  2. #2
    Resident Guru JC-SuperJet's Avatar
    Join Date
    Jul 2013
    Cypress, TX

    Re: Oil Leaking in Hull when sitting extended periods of time

    Suggest replacing the oil lines. After a while, this hoses will develop tiny splits and leak.

  3. #3
    Frequent Poster Associated98's Avatar
    Join Date
    May 2014
    Cottage Grove, MN

    Re: Oil Leaking in Hull when sitting extended periods of time

    Sounds like a seepage problem. Unfortunately I have experienced similar issues. If oil has ever been allowed to sit in the hull it can work its way inbetween the two layers of the hull on the bottom deck and just seep relentlessly. I just let mine continue to leak for around a week or two and cleaned up any standing oil/water every day until it stopped. Then I degreased and its been fine since. Good luck with whatever happens, oily hulls are one those buttons of mine that gets me every time so I know how frustrating it can be.
    Last edited by Associated98; 07-25-2017 at 10:31 AM.
    99' TS770R
    98' TS1000R
    97' Daytona 1000
    97' Daytona 1000
    97' Daytona 1000
    94' Montego (my first) sold
    95' Daytona sold
    95' Daytona parted out
    95' Barracuda sold
    96' Montego sold
    96' Daytona (the one that got away...) sold
    96' Monte Carlo 900 sold
    97' Daytona 1000 clean and beautiful. You will be missed.
    97' Daytona 1000 sold

  4. #4
    Resident Guru
    Join Date
    Jun 2006

    Re: Oil Leaking in Hull when sitting extended periods of time

    I had a similar problem and after many years of seasonal cleaning, found the suction clamp on the oil pump wasn't matched correctly to the hose diameter and wouldn't pinch down properly. The hose combination yielded a diameter that was kind of in-between the available clamp sizes.

  5. #5
    PWCToday Guru Dan87951's Avatar
    Join Date
    Jun 2004
    Lansing, MI

    Re: Oil Leaking in Hull when sitting extended periods of time

    My oil lines on my Daytona 1000 were cracked and perished. I replaced them all and so far no leaks.
    04' Shorelander Double Trailer
    98' Sea Doo SPX Mint
    96' Sea Doo HX Mint
    95' Sea Doo XP800 Mint
    95' Sea Doo XP800 - Rescue project (almost done)
    99' Sea Doo XPL - rescue (project on hold)
    97' Tigershark Daytona 1000 - Another rescue project (see videos below)
    My Jet Ski videos below.

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