another clutch question.

[paulbn61]

Assuming the slave and master cyclinders are functioning fine, does the hydraulics need to be disconnected ( and hence need bleeding) when I only need to replace the basic clutch plates?

[macafee2]

On a diesel manual, I think yes, as you have to remove the bell housing.
It is one plate, not plates like a motorbike.

I would assume if the other versions of 75 have the slave in the bell housing it will be the same.

If you are undertaking a clutch change, bleeding will be a a piece of cake for you


macafee2

[paulbn61]

Originally Posted by macafee2

On a diesel manual, I think yes, as you have to remove the bell housing.
It is one plate, not plates like a motorbike.

I would assume if the other versions of 75 have the slave in the bell housing it will be the same.

If you are undertaking a clutch change, bleeding will be a a piece of cake for you


macafee2

I have also been told that once the hydraulics have been disconnected, the slave and/or master cyclinders often fail. Is that the case please?

[Lee T]

If you disconnect at the push fit connector, then bleeding is not required. Simply push back together once job is completed. If you don't know the age of the slave cylinder then change it whilst you have the box out. Not a job you want to be doing twice. If you do change the slave, reverse bleed it and flush out the master cylinder using a syringe and tube.

Lee.

[Lee T]

Originally Posted by paulbn61

I have also been told that once the hydraulics have been disconnected, the slave and/or master cyclinders often fail. Is that the case please?

If the slave only is changed then the master can transfer contaminated fluid to it and cause an early death. Flushing the pipework and master reduces that risk, but it is preferable to change everything including guide tube when renewing the clutch. DMF is usually ok on our cars but should be checked anyway.

Lee.

[Mike Noc]

Originally Posted by paulbn61

Assuming the slave and master cyclinders are functioning fine, does the hydraulics need to be disconnected ( and hence need bleeding) when I only need to replace the basic clutch plates?

Yes the slave cylinder needs to be disconnected to remove the gearbox, but won't need bleeding due to the design of the quick connector.
However, I'd replace the slave cylinder when replacing the clutch plate because they are relatively cheap, not particularly long lasting and taking the box off is a fair bit of work.
Also worth stripping and cleaning the master cylinder if you don't change it - bleeding it doesn't get rid of all the contamination.

As mentioned the DMFs can be good for over 300k miles and I'm still on my original guide tube at 433k miles.

[paulbn61]

Thanks to members' valuable info . Wish we had thanks button back.