My car has had a vacuum servo conversion. It's a UR quattro with an ADU engine.
Basically when I took it for an MOT last week having been off the road for 10 years, the brakes jammed on in the middle of a busy railway crossing. Lots of revs and the smell of a clutch overheating and it limped to the other side whilst I awaited the AA.
After around 30-45 minutes of waiting, the brakes ease off and you can drive it for another 10 minutes or so before the inevitable happens again.
So having listened to lots of advice I changed the master cylinder. However, I still have the same problem and TBH the old one looked fine with good pressure and no signs of leaking.
Something that I noticed which is puzzling me is that when I put the master cylinder on, the piston engages the rod and is compressed around 20 mm. I might also add that there is separate bolt of sorts (could be home made) that the servo rod engages, which then loosely sits inside the master cylinder.
Should the rod from the servo be setup so that it is almost touching the master cylinder?
Basically when I took it for an MOT last week having been off the road for 10 years, the brakes jammed on in the middle of a busy railway crossing. Lots of revs and the smell of a clutch overheating and it limped to the other side whilst I awaited the AA.
After around 30-45 minutes of waiting, the brakes ease off and you can drive it for another 10 minutes or so before the inevitable happens again.
So having listened to lots of advice I changed the master cylinder. However, I still have the same problem and TBH the old one looked fine with good pressure and no signs of leaking.
Something that I noticed which is puzzling me is that when I put the master cylinder on, the piston engages the rod and is compressed around 20 mm. I might also add that there is separate bolt of sorts (could be home made) that the servo rod engages, which then loosely sits inside the master cylinder.
Should the rod from the servo be setup so that it is almost touching the master cylinder?
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