[DeTomaso] clutch

[Ken Green]

Just as a slight addition to Mike's observations, a diaphragm is much easier to hold down sitting in traffic because the force in not linear like other pressure plates (assuming no trick linkage).  The force drops when a diaphragm clutch is fully disengaged.  So if you plan to drive where you will have a lot of stops at signals, a diaphragm would be good to consider. 
 
Mike, so you know if Quela sold the McLeod hydraulic throwout?  cLeod seems to sell a lot of them.  I always heard that you have to be careful about depressing the pedal quickly if it hasn't been used for a while.  That should not happen when you are out and about, only when the car has set for a while
 
Ken
 

--- On Tue, 11/25/08, MikeLDrew at aol.com <MikeLDrew at aol.com> wrote:

From: MikeLDrew at aol.com <MikeLDrew at aol.com>
Subject: Re: [DeTomaso] clutch
To: ehpantera at yahoo.com, detomaso at realbig.com
Date: Tuesday, November 25, 2008, 6:31 PM

In a message dated 11/25/08 12 21 49, ehpantera at yahoo.com writes:


> I'm in the process of putting in a new clutch assembly. I would
appreciate 
> an explanation of the differences and benifits between McLeod and 
> Centerforce. 
> 
>>>Well, McLeod makes a number of different clutches for the Pantera. 
 I 
suspect what you're really asking is the differences and benefits between a

stock-style three-finger clutch, and a diaphraghm-style clutch (of which 
Centerforce is representative, although McLeod makes them too).

Broadly, I'd say the diaphragm-style clutch is an improvement over a
standard 
three-finger design.   It gives superior clamping force for the same pedal 
effort.   But both styles have their proponents.


> How well does the internal slave cylinder work?
> 
>>>When it works, it works great.   I've had one in my car that I
got from 
Dennis Quella in about 1992, and it's worked great this whole time.  
However, 
when they go bad, they go VERY bad, and you are stuck dead in the water, 
requiring the gearbox to come out for troubleshooting/repair.   

And they do go bad.

For this reason, Dennis no longer sells them; he now advocates the 
stock-style arrangement.   Stock clutch master and slave cylinders are
laughably cheap 
these days.   A stainless long-throw slave is an expensive improvement, which 
comes with the price of slightly higher pedal effort.

I would characterize the non-stock CNC aluminum master cylinders as
'junk', 
although that reflects a certain degree of prejudice.   They work okay, but 
require you to cut your hydraulic line and re-flare it with a different
fitting.  
 I prefer the stock ones as a result, although they do lack the bling factor 
of the CNC unit.

Mike



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