Large Bore Clutch Master

Forest,

A larger master cyl bore will INCREASE the required pedal effort. The original '71 clutch master cyl had a bore of 11/16", so a 3/4" bore master would have INCREASED the pedal effort slightly (~9%).

You might consider installing the clutch pedal effort reduction kit. It does make a difference. Wilkinson lists it for $207 w/o the pedal shaft (item #1), which you don't need.

John

Don't buy into the hype that a Ceterforce clutch will make it any easier. ..I picked up a complete pedal assy off ebay for 200$ or so.. It has the reduction. Not installed yet Bill

quote:

Originally posted by lastpushbutton:
Don't buy into the hype that a Ceterforce clutch will make it any easier. .....

I'll have to offer a different experience. I just changed to a Centerforce from an unknown 3 finger unit, and the pedal effort is much more tolerable.

I went from a Centerforce diaphram style to a Macleod 3-finger with no extra pedal effort.
Will

Hey John, I reconsidered the ratio for a large bore after I posted and thought that was stupid question but hey, it was a long hot day! Good advice on the pedal reduction kit - I will follow up on that first. I may still have to replace the clutch - years ago I installed a "racing clutch" that I bought from Dennis. That was before I got older and decided that I really just liked to cruise the neighborhood.

Second question, I have been off the list for awhile - does the Centerforce require a new flywheel? Will the Macleod fit the original flywheel?

Thanks to everyone that responded,
Forest - Still hanging in Hadlyme

quote:

Originally posted by Forest Majors:
...... does the Centerforce require a new flywheel? Will the Macleod fit the original flywheel?

The Centerforce is a 10.4" clutch, so you just have re-drill the stock flywheel. No need for a new one. A competent shop can do this for you when you have it resurfaced.

With a larger bore master remember that extra fluid volume has to go somewhere and from what I have heard it is possible to over extend a hydrualic throwout bearing and blow it out (maybe the new designs are different). I know Dennis no longer sells or recommends their use, having been one of the biggest advocates previously.

Julian

quote:

Will the Macleod fit the original flywheel?

Forest,

Yes, it will. Are you still running the dash 1 ZF, or the dash 2?

John

John,

Dash 2 mounted like the earlier Dash 1 - single mount instead of the dual mounts used in the later models.

Forest

Forest,

This is the McLeod clutch and pp for the dash 2:

#360505 pp, 11" long (3-finger) with counter weights.

#260131 disc, 11" organic, 1-1/6" x 10 splines. This is a Pantera specific disc.

This was no change in pedal effort from the original Pantera 3-finger pp (with the isis stamp). Well, maybe a tad (barely noticeable) more due to old vs new.

John