Skip to main content

0CE59DBA-68F8-47F1-AAA3-06ED7B89B01C_1_201_a

Our cars have a nicely adjustable limiter for the brake pedal return.  The red arrow in the photo points to it. It keeps slop out of the brake pedal and optimally positions it for its next use.  The gas pedal also has a limiter for both full throttle and no gas.  Yet the clutch pedal seems to be on its own.  There is no return limiter and thus the clutch pedal has a small amount of slop before engaging with hydraulic pressure.  And this is after a full rebuild of the clutch effort reduction system and the clutch master cylinder.  It looks like I can fabricate a limiter with a braided wire cable and some fasteners.  Has anyone looked into this already?

Attachments

Images (1)
  • 0CE59DBA-68F8-47F1-AAA3-06ED7B89B01C_1_201_a
Original Post

Replies sorted oldest to newest

Those are good questions that only the Italian engineers know for sure.  The springs in the clutch pressure plate are the primary source of return.  The counter spring on the pedal shaft intends to return the pedal to your foot in an effort to compensate for slop.  But the counter spring on the shaft overcompensates and there is a dead spot when you press on the pedal and hydraulic system starts to engage.  A limiter like the one on the brake pedal eliminates the dead spot.  It is not clear to me why the brake pedal got a limiter and clutch pedal did not get one.

It is not clear to me why the brake pedal got a limiter and clutch pedal did not get one.

I'd have to go look and reconfirm but from memory don't believe the brake pedal is positively linked to the master cylinder because of the push rod and booster, whereas the clutch push rod is held in the master by a circlip and can only come out so far.

Add Reply

Post
×
×
×
×
Link copied to your clipboard.
×