Clutch help please

[MARTIN AIDE]

Hi Folks
wondering if air in a clutch slave cylinder wili cause a clutch to slip or is it the other way around?I have bled the cylinder a couple of times and it will be fine for a couple of weeks and then the clutch starts slipping again.
Do I need a clutch or cylinder?just wondering what the experts think

T
hanks

sorry 1995 993

[porterdog]

Air in the clutch line will prevent you from disengaging the clutch. I doubt that your slipping clutch is related...

Sorry!

[aigel]

Indeed - air in the lines would prevent the clutch from being disengaged. As a default, so to speak, the pressure plate pushes the clutch disk against the flywheel.

G

[MARTIN AIDE]

just strange in that it doesnt slip and feels stiffer when its bled,Wishful thinking i guess

[aigel]

Why does it need constant bleeding? There may be a clutch cylinder leak, but I doubt it leaks into the clutch / onto the clutch disk.

What are the miles / usage on the clutch?

To start, I'd track down the leak in the clutch hydraulics. You can get to those without transmission removal.

G

[Traveller]

Originally Posted by aigel

Why does it need constant bleeding? There may be a clutch cylinder leak, but I doubt it leaks into the clutch / onto the clutch disk.

That is what I was thinking.

As for the leak, where else can it leak from but from the boot and rod actuator end...right into the clutch area.

[MARTIN AIDE]

well i dont see any signs of leakage,it just seems strange that it would be fine for a bit and then start slipping again.if it were the clutch wouldnt it slip all the time?

[bazar01]

The reason why it does not slip all the time is the clutch disc is on the treshold thickness where it is just beginning to slip. Drive it a little more in this condition and you will be stranded with a slipping clutch.

Well if it slips, no amount of adjustment or bleeding will fix that on a hydraulic system. On clutch cable systems yes there is a possiblity of misadjustment.

As mentioned earlier, air will prevent clutch disengagement or release making it hard to shift. But air in the clutch hydraulics to cause slippage, no.

As far as fluid contaminating the disc, unlikely. The slave is too far in front of the pressure plate where the fork is.

Good luck.

[aigel]

It can have a leak in the clutch master cylinder and in the line.

I doubt the fluid makes it onto the clutch from the slave cylinder. But it isn't hard to pull the slave cylinder and inspect it. (At least compared to pulling the trans).

You need to start poking around and inspect the hydraulics carefully.

Also, you did not answer if your clutch is possibly at end of life from use / miles. If you have say 60k miles since the last clutch, I'd just bite the bullet and pull the engine trans and rebuild the clutch from the ground up. It may have lived another 20k miles, but who cares? You want to drive the car and not worry about a slippery clutch!

G

[MARTIN AIDE]

I think its been about 30000 km which is why I was hoping it wasnt the clutch but i guess youre right.which clutch should i get?is the sachs good enough?thanks guys

[aigel]

A stock Sachs clutch will be fine - whatever Wayne has listed here! 30k km seems early. You are hard on your clutch?

G