The V8 Owners Forum -

I have a very hard clutch which I put a 1.9:1 ratio servo. Clutch is now lovely.
The master cylinder is 0.75 and the Girling slave is a Q143 74660035 which I think is a 0.875 bore.
What I cannot understand how to make the pedal easier do I reduce the slave to 0.75?
I can't get my head around hydraulics, does the slave need to be bigger or smaller than the master to make it easier.
I could do with a new slave, just sorting out which one to buy.

If you want to make it easier, you need a smaller master cylinder or a larger slave.
Chris.

ChrisJC wrote: ↑

Wed May 09, 2018 6:53 pm

If you want to make it easier, you need a smaller master cylinder or a larger slave.
Chris.

But in doing so, you will also alter the length of travel the pedal needs to move.

The leverage is what it needs to be, you cannot magically make it easier, without it affecting something else....which will be pedal travel needed to achieve the same slave/bearing travel.

If you have the space to put it, you could fit a servo assist.

unstable load wrote: ↑

Thu May 10, 2018 12:00 am

If you have the space to put it, you could fit a servo assist.

I think he already has a servo but I don't understand "I have a very hard clutch which I put a 1.9:1 ratio servo. Clutch is now lovely."
If it's now lovely why does it still need work?

Wanted to remove the servo if possible. Although working fine, it looks horrible.
Thanks for the advice, with a 0.75 master and 0.875 slave, it seems I have the right combo.
Best to leave as it is and stop fiddling.
Thanks Mark.