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  1. #1

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    08 sho oil cooler leak

    Hey has anyone come across a oil cooler that leaks water into oil?


  2. #2
    Orange FZS's Avatar
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    Yeah I had this issue just the other day on a 2009 Fzs. Had a small hole in the cooler causing water and oil to mix. Also snapped off bolt heads on the oil cooler is another common problem I find resulting in a leaking oil cooler.

  3. #3
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    Pressure test the water side will show a leak. If it leaks no air its good.

  4. #4
    AWA MEMBER
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    might Check the head some been showing up leaking that could also put water in oil

  5. #5
    Ski Hacks MG's Avatar
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    There have only been 2 cases mentioned here on the Hulk where water was getting into the oil via a tiny fracture in the head. Search Jim's Performance's posts if you want to see a video on how to test it (even though this isn't your issue). More than likely due to salt corrosion in the cooling passages of the head and/or weak casting in 1 or 2 particular spots. Seems like both cases were heavy salt usage without proper flushing.

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