Brakes, normal Servo type.
Moderator: RichardW
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Brakes, normal Servo type.
Not hydraulic cit but a normal servo assisted set-up.(we will call it a ZX for arguments sake, its not but.....)
For some reason the caliper stuck on today and the disc pads etc got VERY hot.
I removed the caliper (a 2 piston sliding pin affair) and the piston would not push back in, so i cheated and removed the caliper and pushed them back in no problem by hand whislt there was no fluid pressure.
Cleaned all up and re-assembled, strange thing is though it will not bleed. Very very little pedal travel and even less coming out the bleed nipple. (im using a one man bleeder with the one way valve so can see if anything is coming into clear tube)
Any ideas?
For some reason the caliper stuck on today and the disc pads etc got VERY hot.
I removed the caliper (a 2 piston sliding pin affair) and the piston would not push back in, so i cheated and removed the caliper and pushed them back in no problem by hand whislt there was no fluid pressure.
Cleaned all up and re-assembled, strange thing is though it will not bleed. Very very little pedal travel and even less coming out the bleed nipple. (im using a one man bleeder with the one way valve so can see if anything is coming into clear tube)
Any ideas?
Sounds like the master cylinder return travel is restricted so that the recuperator ports are not being uncovered.
When the piston is at rest the seals should be just behind the ports (one for each circuit) communicating with the fluid reservoir. This allows the system to top up and any residual pressure to dissapate when the system is not in use. Press the pedal - and the first thing that happens is these ports are covered then passed by the seal which can then pump.
jeremy
When the piston is at rest the seals should be just behind the ports (one for each circuit) communicating with the fluid reservoir. This allows the system to top up and any residual pressure to dissapate when the system is not in use. Press the pedal - and the first thing that happens is these ports are covered then passed by the seal which can then pump.
jeremy
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- Posts: 562
- Joined: 28 May 2004, 01:02
- Location:
- My Cars:
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- Posts: 562
- Joined: 28 May 2004, 01:02
- Location:
- My Cars:
- x 1
Interesting! Sounds like typical compression damage on a composite hose. Do you think someone has been over enthusiastic in compressing the hose with some form of locking wrench to stop leakage while working on the brake?
We use a largeish diameter airline at work in our trailer loading bay and regularily this suffers from this sort of damage (separation and splitting of the inner layer) due to being driven over or some idiot leaving it under a trailer leg when unhitching.
Jeremy
We use a largeish diameter airline at work in our trailer loading bay and regularily this suffers from this sort of damage (separation and splitting of the inner layer) due to being driven over or some idiot leaving it under a trailer leg when unhitching.
Jeremy
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- Joined: 28 May 2004, 01:02
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It was the wifes Ni***n MPV.
Its had a new steering rack at MOT time couple of months back and some welding to the strut top inners. Was going to do it all myself (wish i had, would have done a better job than the garage) but time was short so pointed and paid. I imagine the garage did clamp it off, would explain the damage/problem within the hose. I've had motorcycle lines collapse or go spongy never on a car though, only ever had cracking etc on car hoses.
Its had a new steering rack at MOT time couple of months back and some welding to the strut top inners. Was going to do it all myself (wish i had, would have done a better job than the garage) but time was short so pointed and paid. I imagine the garage did clamp it off, would explain the damage/problem within the hose. I've had motorcycle lines collapse or go spongy never on a car though, only ever had cracking etc on car hoses.
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- Joined: 28 May 2004, 01:02
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Hi Richard,
The front brakes are not too bad. Did a water pump on it a while back, thats a nightmare. Being midengined you have to raise and support car, climb inside it and work around blind corners. The waterpump is not cambelt driven so should be easy enough, but you have to remove the cambelt and tensioners to take the pump off, how silly is that?
All in all i preferred the CX familiale we had previously, thats a proper car, that doubles as an MPV by being big enough for many people, plenty of luggage/furniture etc or in a tight spot could make quite a good bed in the back (although safari;s are better for this)
The nissan does a job though, is basically reliable and big enough to tow 2CV/Dyanes behind on A-frames or trailers and motorbikes fit inside it with the seats out the way. And more importantly she seems to like it so i get to spend my time playing with old citroens
The front brakes are not too bad. Did a water pump on it a while back, thats a nightmare. Being midengined you have to raise and support car, climb inside it and work around blind corners. The waterpump is not cambelt driven so should be easy enough, but you have to remove the cambelt and tensioners to take the pump off, how silly is that?
All in all i preferred the CX familiale we had previously, thats a proper car, that doubles as an MPV by being big enough for many people, plenty of luggage/furniture etc or in a tight spot could make quite a good bed in the back (although safari;s are better for this)
The nissan does a job though, is basically reliable and big enough to tow 2CV/Dyanes behind on A-frames or trailers and motorbikes fit inside it with the seats out the way. And more importantly she seems to like it so i get to spend my time playing with old citroens