Bxers - On my ’88 GTI, I’ve removed the hydraulic reservoir for cleaning and painting, and will renew the LHM. If any air gets into the lines, is this a problem? Or will it be eliminated through several cycles of height adjustment?
A step-by-step procedure for renewing the fluid and cycling the system would be helpful. A couple of the drain lines from the rear cylinders are disconnected, now I’m unsure of the reattachment points at the reservoir. Does anyone have a good closeup photo of the octopus and all lines?
On the accumulator/junction block, where is the pressure relief screw? I cleaned and painted the whole assembly, but could not identify this.
Hydraulic fluid renewal and pressure relief
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Re: Hydraulic fluid renewal and pressure relief
Air will work its way out as lon as you remember to bleed all the brakes afterwards- they're the only dead ends.
I don't think it matters too much which return lines go back where- stand to be corrected on this mind you - but in the past I've got away with it with seemingly no ill effects.
Bleed screw is the only 12mm bolt on the pressure regulator. no need to unscrew it completely!
I don't think it matters too much which return lines go back where- stand to be corrected on this mind you - but in the past I've got away with it with seemingly no ill effects.
Bleed screw is the only 12mm bolt on the pressure regulator. no need to unscrew it completely!
1991 Citroen BX 16v
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Re: Hydraulic fluid renewal and pressure relief
The pressure release screw is also used to prime/bleed the system after you have changed the oil. Once the system is primed and the LHM is flowing any other air trapped in the suspension/steering will make it's own way out of the system as it flows round.
If you wish to change the LHM in the brake lines you will need to bleed each brake individually at the hubs.
If you wish to change the LHM in the brake lines you will need to bleed each brake individually at the hubs.
Kevan
1997 Mercedes C230 W202
2003 Land Rover Discovery Series 2 Facelift TD5 - Daily driver / hobby days and camping.
1993 Land Rover Discovery 200tdi Series 1 3 door - in need of TLC
2020 Fiat Panda 4x4 Cross Twin Air.
1997 Mercedes C230 W202
2003 Land Rover Discovery Series 2 Facelift TD5 - Daily driver / hobby days and camping.
1993 Land Rover Discovery 200tdi Series 1 3 door - in need of TLC
2020 Fiat Panda 4x4 Cross Twin Air.
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Re: Hydraulic fluid renewal and pressure relief
for me it was simple, to release the pressure in the system i just put the car to the lowest position then kept pumping the brake pedal. even though the car was already low with every pump i was able to make the car sink lower until the brake pedal did not do the "hiss" sound while taking the pressure i held down off the pedal.
filling and priming the system was a little more difficult, but when you forget to screw on the accumulator sphere... yeah it kinda primes rather quick.. :/
filling and priming the system was a little more difficult, but when you forget to screw on the accumulator sphere... yeah it kinda primes rather quick.. :/
- JohnDragonMan
Drives: Citroen Dispatch with retrofitted air conditioning
Classic Fiat Panda 4x4 Sisley named Talon (long term storage)
always buy base spec. that way you have the fun of putting all the cool bit on your vehicle
Drives: Citroen Dispatch with retrofitted air conditioning
Classic Fiat Panda 4x4 Sisley named Talon (long term storage)
always buy base spec. that way you have the fun of putting all the cool bit on your vehicle