Pre verto clutch plunger travel
Turbo Mini Forums

This year I have converted to pre verto, I have no experience with this at all so with the problem I have Im a little stuck I have no idea how much does the plunger travel in opperation. The reason I ask is when I first replaced the slave cylinder the pedal traveled straight to the floor, so went about bleeding the slave got a load of air out but the pedal still hits the floor.
Spoke to Nic and he gave me a list of things to try and check to no avail, so ended up taking the clutch out to check everything, no fault was found, reassembled and made another attempt at bleeding and setting up return stop as per haynes.
This time the pedal was heavy as I would of expected from the grey diaphram, but still not huge amounts of movement on the clutch plunger. The pics below show the positions engaged and disengaged, your thoughts please, does this look ok, and am I just looking for a problem thats not there.
Cheers
Shane

should be about 0.150 to 0,160", or 3-4 mm travel,
your looks about right.


carl

WWW.FORCE-RACING.CO.UK PLEASE CLICK HERE

Thanks Carl, thats just what I wanted to hear.
Also thanks to Nic for his help
Cheers
Shane

Been pi**ing about with this most of the day, but still no major success. Managed to bleed a little more air out of the slave, which has made the pedal feel alot better. I have set the stops as per manual and the clutch works fine with the carpet out, with it in and the pedal to the floor it doesnt disengague as well. Have read and heard of people extending the pin or even heatin up the arm and bending it a little, is this what I need to do to resolve this? Really am tearing my hair out at the moment.
Cheers
Shane

Check the clevis pin that attaches the peddle to the master cylinder when i did mine this was the problem.
It was warn and lost a fair few mm of travel on the peddle did this and adjusted as per the following link and it worked fine.

give it a shot its a cheep fix if it is this, 40p :)

"Tuning should be a compromise between what is possible and what is necessary"

10)Thou shalt always quest for more power

master cylinder clevis pin and push rod, clutch actuating arm, Arm pivot pin, clutch plunnger.

little wear in all of these soon adds up to a problem, lots of wear in one of those will cause a problem.

Start will all new gear and if you still have a problem, then extend the push rod, but I doubt you would have a problem.

Also, I have heard that later clutch master cylinders are a smaller bore to the early ones, which will reduce the travel.

The pictures you posted however look about right.

I think you will find wear on all parts listed above if they have not already been replaced

Edited by Sprocket on 16th Mar, 2009.