[TR] TR6 Clutch Hydraulics

[Dave1massey at cs.com]

The TR6 was notorious for the heavy clutch.  Puts hair on your chest, they 
would say.  There are two brands of clutch available for the TR6 and one is 
heavier than the other.  I forget which (maybe someone here can fill in the 
blanks) but it sounds like your firend got the heavier one.  The first time 
I replaced the clutch in my TR6 I got lucky (or good advice perhaps it was a 
long time ago) and when I first hooked up the hydraulics and pushed the 
clutch pedal I though something was amiss.  Be verifying that the output flange 
turned free of the engine in gear with the pedal depressed proved that it 
did indeed work.

If there was something wrong with the hydraulics or the mechanical linkage 
then the pressure need to depress the clutch would be noticably greater than 
the pressure needed to resist its return upon release.  Do you notice this?

Dave

In a message dated 8/11/2012 10:11:00 AM Central Daylight Time, 
ghaynestr4 at aol.com writes: 
> Listers,
> A friend has a 1970 TR6 in which the clutch pedal requires an excessive 
> amount
> of force to disengage the clutch.  Considerably more force than other 
> TR6's I
> have driven and more than my TR4A.  We installed a new, stock pressure 
> plate
> last winter.
> 
> Could hydraulics be a fault?  The early 1970 took a Master cylinder bore 
> of
> .75", while later 1970's and newer took a .70" bore.  Slave cylinder 
> diameters
> are apparently all the same.
> Assuming he has an early car, would his problem be improved with use of a
> later, smaller bore MC?
> 
> It's not fun driving his car.  Could something be binding mechanically?  
> The
> slave pushrod is in the center hole.
> Thanks for any insight and advice.
> George Haynes