Cant bleed air out clutch

[gsc1ugs]

I keep bleeding the clutch because the pedal is terrible, it once dropped to floor no clutch, i used ezay bleed same as power bleed and pedal was fine. After few mile pedal goes rubbish again, is this a slave cylinder problem? I have no leaks and lose no brake/clutch fluid.
Thanks in advance

Van is mk7 2008 tipper 2.4 diesel

[dumper]

You need to reverse bleed it if you haven’t the proper tools you can run a pipe from the front brake caliper to the clutch slave cylinder open the bleed nipples and pump fluid from the brakes through the clutch system back into the reservoir.

[van_man]

how old is the clutch master cylinder?
They are known for the seals leaking internally, then they don't hold pressure.

They are pretty cheap and quick to replace

[gsc1ugs]

Master cylinder that the big thing or one under pedal?

[dumper]

It’s under the bonnet the one with the fluid tank on is the brake master cylinder there’s a flexible pipe that comes out of the side of the tank into the clutch master cylinder they both use the master cylinder tank for the fluid.

[knobby1]

Master cylinder that the big thing or one under pedal?

If you have to ask, get someone who knows what thet're doing to do it.

How have you been bleeding it if you don't know where it is..?? Have you been bleeding it through the slave cyl..??

Lord Knobrot

[gsc1ugs]

Easy bleed goes on reservoir then pressurised pushing fluid through when nipple on gearbox is opened. That should push any air out the system but it doesn’t last long hence the question, is that the cylinder your on about on gearbox?

[knobby1]

Easy bleed goes on reservoir then pressurised pushing fluid through when nipple on gearbox is opened. That should push any air out the system but it doesn’t last long hence the question, is that the cylinder your on about on gearbox?

Reverse bleed it as our Dumper said. Air doesn't like going down pipes etc..

Slave cyl is on or in the gearbox bell housing depending on whether 5 or 6 speed. Master is on firewall. Both brake and clutch are fed by the same fluid reservoir. Fluid level can be deceiving as there are two chambers inside...can look full from the outside but clutch area can be near empty.

Lord Knobrot

[Bhorton5357]

Need to get your master cylinder checked. Really common for these to do this when they fail, luckily, they’re quick and easy to change. If it’s bleeding up, the pedal is fine for a while, then it’s causing you problems again, the chance is you’ve got a faulty part somewhere. Changed lots of master cylinders on transits. If you’ve got a 5 speed MT75, the slave cylinder is a bayonet fit, like a lightbulb, so you can pop it out and check it for leaks literally in seconds.

[knobby1]

Need to get your master cylinder checked. Really common for these to do this when they fail, luckily, they’re quick and easy to change. If it’s bleeding up, the pedal is fine for a while, then it’s causing you problems again, the chance is you’ve got a faulty part somewhere. Changed lots of master cylinders on transits. If you’ve got a 5 speed MT75, the slave cylinder is a bayonet fit, like a lightbulb, so you can pop it out and check it for leaks literally in seconds.

Slave is only easy to get at if he has the MT-75, not so easy if Mt-82...he hasn't told us what he has.

Lord Knodrot

[gsc1ugs]

Mines 6 speed is this it

[knobby1]

Mines 6 speed is this it

No, that's just the bleed "adaptor"...it plugs into the slave cylinder. Gearbox out job to get at the slave cyl on the 6 speed.

Adaptor is 7C560 here:

Slave or CSC is 7A564 here:

https://www.catcar.info/ford/?lang=en&l ... NCsxMzM%3D

Lord Knobrot

[gsc1ugs]

Ffs - i could be taking gearbox out for nothing, how i get a definitive prognosis ?

[knobby1]

Ffs - i could be taking gearbox out for nothing, how i get a definitive prognosis ?

If you replace the master cyl, (cheap and easy), and it still does it....must be the slave, there's nothing else in the hydraulic system. They don't last forever.

When was the clutch & flywheel last replaced..??

Lord Knobrot

[gsc1ugs]

I haven’t changed it