Clutch problem, please help asap

[jamesvfr]

Hi all

Ive got a series 1 trialler on rrc axles

v8 on a series 2a gearbox

Problem ive got with the clutch is that with just 1 pump of the pedal the slave cylinder does not push clutch release arm far enough to disengage clutch

If i pump it very quickly it pumps the slave out a bit at a time like a hydraulic jack + pushes realease arm far enough to disengage

Its the 2a slave clylinder which sits vertical on drivers side of the bellhousing with what looks like an original series 1 master cylinder

What ive been thinking is that the capacity in the master is too small to move the slave in just 1 push + when pumped quickly the master refills from reservior + pumps more fluid through + eventually pushing it right out

Is there anyone that can confirm this or has any ideas of how to get round this?

Anyone know the bore + length of the series 1 clutch master?

Cheers all

James

[ejparrott]

just checking, are you sure there's no air in the system?

[jamesvfr]

No air in there

I checked, double checked + then got a mate to triple check just to make sure it wasnt me having a funny day

Slave was originally leaking so that was replaced + theres no leaks at all from any where

once the slave is fully out it does stay there if i hold the pedal down

Also clutch is extremely heavy

All of these reasons are making me think that the master is no large enough

Will a rangie / discovery or even series 2 or 3 master bolt in?

The connecting rod isnt realy a worry as i could always modify one of them to fit

Cheers

James

[Phil Hancock]

For a start off the series 1 clutch was fully mechanical not hydraulic. As its now hydraulic then its been converted. Series clutch master is 3/4" bore and slave IIRC is 1" bore.

[missingsid]

Did it ever work correctly?

I have the same set up on a Series 1 gearbox but I had to cut and shut the arm and bits to make it work.

Marc.