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Thread: Changed brake master cylinder and now pedal stiff

  1. #1
    Guest clive12155's Avatar
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    Changed brake master cylinder and now pedal stiff

    Hello guys happy Easter. Just wanted some help here. Today I changed the break master cylinder on my ca18det s13 and swapped it with a z32 bmc for better brakes. The problem now is that my break pedal is hard and it takes long to stop. I have bleed the whole system 3 times to make sure there was no air. It never happened before with my standard bmc. Any help will be much appreciated. Kind regards

  2. #2
    Guest clive12155's Avatar
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    Any 1?

  3. #3
    Guest Barryjdart's Avatar
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    Servo problems?

  4. #4
    Guest clive12155's Avatar
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    I have pumper the brake pedal with engine off and then started the car as the pedal drops down a bit so I don't think it's the servo problem but not sure

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    Sounds like how the car would behave if the servo was disconnected.

    Is the vac hose from the plenum to the servo secure and has no leaks?

  6. #6
    Guest clive12155's Avatar
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    Yes mate the break pedal feels the same when connected the servo vac pipe and the same when disconnected. I can't see or hear any vac leak in the line

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