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Thread: Help/advice please - gearbox/transfer case problems

  1. 11th June 2014, 03:39 AM #11
    Jode
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    Quote Originally Posted by Brett1066 View Post
    Will get a new master cylinder too, I put a new one in about four years ago, and pretty sure there are no problems with it at the moment, but having said that it is probably buggered!
    IIRC, I've seen somewhere in the wsm a statement to the effect that all brake and clutch rubbers should be replaced at max 4-year intervals - maybe they've designed in a 4-year self-destruct mechanism in the rubbers....

    But as noted above, if the seals inside the cylinder go, you end up pushing fluid past them rather than pushing the clutch via the seals and hydraulics, which of course results in no clutch engagement. You can engage the gears when the engine is off because the gearbox isn't spinning.
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  2. 17th June 2014, 07:14 AM #12
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    Brett1066
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    Originally Posted by Brett1066
    Will get a new master cylinder too, I put a new one in about four years ago, and pretty sure there are no problems with it at the moment, but having said that it is probably buggered!


    So took out the old master cylinder and went to put in a new one, only to cross thread the fitting where the hose goes down to the slave. So while I wait for a replacement to arrive, I thought I would pull apart the old master cylinder and inspect it, picture below shows what I found. The seal is clearly buggered, but would this be enough to stop enough hydraulic pressure from getting to the slave to disengage the clutch? There are no leaks, and I have not been losing any fluid, so perhaps it is just recirculating in the master cylinder. Would have expected to see more damage than this though. Thoughts?

    20140616_152926.jpg
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  3. 17th June 2014, 07:29 AM #13
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    Brett1066
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    master1.pdf
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