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DT125R FORUM

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  4. Gearbox breather blowing

Gearbox breather blowing

Scheduled Pinned Locked Moved Engine
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  • C Offline
    C Offline
    callumcull
    wrote on last edited by
    #1

    Hello,

    I’ve been having a few issues with oil leaks.

    I can’t seem to stop loads of oil blowing out of the breather. Oil level is fine and case is pressurising. Does anyone know what is most likely the culprit before the parts canon gets fired? 😂

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    • C Offline
      C Offline
      callumcull
      wrote on last edited by
      #2

      Oh, and no coolant is making it in as oil is completely clear.

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      • CalumC Offline
        CalumC Offline
        Calum
        wrote on last edited by
        #3

        If you're not getting coolant into the oil then it sounds like it's the right hand crank seal.

        This can be done if you're careful with the engine in situ, although I always the split the crank cases.

        Do a compression check to see if it's leaking through the cases.

        Always Originate, Never Pirate!

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        • C Offline
          C Offline
          callumcull
          wrote on last edited by
          #4

          Nice one, thanks for that suggestion! I’ll give that a go.

          Ps. Nice name!

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