7 replies to this topic

[Jordie]

Hey all.

I built my engine in march, put a new clutch in it. Its a pre verto, all standard components.

It was fine, but one day the 2 big bolts came loose and ever since ive had a short clutch pedal. Lifting from the floor to bite is only a couple of cm's

Before it was about half way, does this mean its out of adjustment? or is there another cause?

Jordie

[Monstrous]

Did you put a new slave cylinder on?

if the seals have gone in the cylinder you may not be getting full travel of the pressure plate, so it won't move away from the friction plate fully?

do you find it hard getting gears?

M

[Jordie]

get gears fine. I put a 2nd hand slave cylinder on, looks fine and it was working fine.

Just the pedal is very low when it bites, can drive it fine but its a tad annoying.

[jack_marshall]

I had the same.

I screwed in the bolt that sticks out the case and lets the clutch arm sit against. This moved my bite point up.

Its explained in the haynes.

[Jordie]

I dont have a return spring on it. could that be a problem?

[Surfbluegarage]

yeah if its pre vero the spring helps the arm come back in towards the casing. mine was the same and like sum have sed all i did was adjusted the throw out( the 2 big nuts on the end of the flywheel casing) then adjusted the bolt stickin out under the arm just try it. start the car and either adjust it in or out and see if it get better or worse.. if worse.. go the other way.lol

[dklawson]

Not having the spring won't affect this. Consider what it does and what the stop bolt mentioned above does.

The clutch is hydraulic. If you want it to actuate "higher" on the pedal, it needs to be set so the pushrod on the slave starts working earlier. To make the clutch pick up sooner you want to adjust the stop bolt such that you have the minimum clearance between its head and the clutch arm. Haynes says the correct set point is 0.020" (1/2mm). However, the guys who I've discussed this with say that's only a starting point. It really can be a lot less as long as the throw out bearing isn't riding the pressure plate all the time. The spring's job is to pull the assembly "back" so that contact doesn't happen. So, not having the spring isn't necessarily the problem but having the stop bolt misadjusted and possible wear in the other components (clevis pins, ball end of arm, etc. ) will make a difference as overcoming these factors requires more pedal travel.

[minislapper]

Before messing with the plunger make sure the end stop is adjusting correctly as per Haynes as this will adjust the biting point on a pre-verto !