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Thread: '02 R1150RT Gearbox Pressure

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  1. #1
    Southbound gregh64's Avatar
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    '02 R1150RT Gearbox Pressure

    I changed the transmission fluid last weekend. When the fill plug was removed, there was pressure in the box.

    Any thoughts? I'm about to replace the breather (if I can get to it).

  2. #2
    Pepperfool GSAddict's Avatar
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    How much pressure? The breather will hold back a bit of pressure in either direction - this is to prevent ingress of water or dirt, it is designed that way.
    '
    Ufda happens..........

    It's all about the details.

  3. #3
    Southbound gregh64's Avatar
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    GSAddict,
    Not known. Enough to give a good "whooosh" when I removed the fill plug. I'm concerned about the seals.

  4. #4
    . AntonLargiader's Avatar
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    Some of those breathers were made wrong; the little slot in them is not actually cut all the way through. It's easy enough to fix, so I wouldn't worry about replacing it. Just remove, clean and open the slot if needed.
    Anton Largiader 72724
    largiader.com bmwra.org

  5. #5
    Southbound gregh64's Avatar
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    Anton, Thanks. I'll try that this weekend and let you know what I find. Hope I can get to the breather quickly.
    '02 R1150RT

  6. #6
    . AntonLargiader's Avatar
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    I just remembered I had a case where the gearbox seemed pressurized, but the breather in fact was clear and the box vented properly. I still don't know why it really seemed pressurized when I opened it.
    Anton Largiader 72724
    largiader.com bmwra.org

  7. #7
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    Chris is the absolute best at what he does. We can all learn a lot from him. I wish he was a bit closer to Colorado.


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