ByronJ
Well-Known Member
- Joined
- Jul 7, 2012
- Messages
- 349
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Hi guys. I would appreciate your thoughts on the behavior of the brakes on my 80. This is the 24v 1995 without ABS. While I was travelling in Greece Zelda reported that Zorro's (thats the 80 with the issue) brakes were 'a little soft'. I got back to Cape Town a few days ago and the brakes were indeed dodgy. When pressing the pedal the brakes were applied but the pedal slowly continued moving to the floor!
There is no sign of brake fluid leaking so I pulled the master cylinder. On inspection the inside of the cylinder looked mirror smooth so I ordered new seals for the cylinder (3 working days from Johannesburg). These I installed today. With the engine off (no servo) the brake pedal is rock hard (an improvement) but once the servo is working the pedal will slowly sink to the floor under hard pressure.
With the brake pedal fully depressed and the transfer box in high ratio I cannot move the car but in low ratio the car can be moved with a fair bit of creaking and groaning. I am certain the brakes are properly bled (I fit a long clear tube on each bleed nipple and raise its end to the car roof and all air eventually finds its way out).
My only thought is that the master cylinder itself is worn (despite its mirror looking insides) and thus oil is bypassing the new seals. I would appreciate any insights you guys can offer before forking out a small fortune on a new cylinder.
There is no sign of brake fluid leaking so I pulled the master cylinder. On inspection the inside of the cylinder looked mirror smooth so I ordered new seals for the cylinder (3 working days from Johannesburg). These I installed today. With the engine off (no servo) the brake pedal is rock hard (an improvement) but once the servo is working the pedal will slowly sink to the floor under hard pressure.
With the brake pedal fully depressed and the transfer box in high ratio I cannot move the car but in low ratio the car can be moved with a fair bit of creaking and groaning. I am certain the brakes are properly bled (I fit a long clear tube on each bleed nipple and raise its end to the car roof and all air eventually finds its way out).
My only thought is that the master cylinder itself is worn (despite its mirror looking insides) and thus oil is bypassing the new seals. I would appreciate any insights you guys can offer before forking out a small fortune on a new cylinder.