How to make clutch easier.

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Dixie6789
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How to make clutch easier.

Post by Dixie6789 » Tue May 08, 2018 8:29 pm

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.


Mark

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ChrisJC
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Re: How to make clutch easier.

Post by ChrisJC » 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.
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stevieturbo
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Re: How to make clutch easier.

Post by stevieturbo » Wed May 09, 2018 7:49 pm

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.
9.85 @ 144.75mph
202mph standing mile
http://www.youtube.com/watch?v=XgWRCDtiTQ0

unstable load
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Re: How to make clutch easier.

Post by unstable load » Thu May 10, 2018 12:00 am

If you have the space to put it, you could fit a servo assist.
Cheers,
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Re: How to make clutch easier.

Post by GDCobra » Thu May 10, 2018 1:15 pm

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?

Dixie6789
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Re: How to make clutch easier.

Post by Dixie6789 » Thu May 10, 2018 6:50 pm

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.
Mark

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stevieturbo
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Re: How to make clutch easier.

Post by stevieturbo » Thu May 10, 2018 10:07 pm

9.85 @ 144.75mph
202mph standing mile
http://www.youtube.com/watch?v=XgWRCDtiTQ0

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