Ok,
I got my 6 out of the garage today since it is her turn for the driving
season. So now I can comment on your 6 clutch issues.
Here are my comments on clutches on the 3, 4 and 6;
The 3 is the best by far. Easy pedal and normal engagement. Smooth and
easy on the foot.
The 4 is by far the hardest push. Release is at almost to the floor. I
have checked everything and that is the best I can get it.
The 6 is right in the middle. Engagement is about the same as the 3 but
the pedal is a bit harder to push.
As you can guess, the 3 is my favorite as far as clutches are but my
favorite drive is the 4.
Clutches were all new from TRF when installed.
No problems with MC or SC in either. Rebuilt original equipment.
So, I agree the 6 is a harder push when compared to the 3. A 70 bore
would give you better pressure but less throw. Since my 6 is a 72 I am
guessing I have the .075 bore.
For my 2 cents, as long as they work and dont leak, I am happy.
When the bury me, maybe my left leg will be bigger than my right.
Bob
On 08/11/2012 05:37 PM, Dave1massey@cs.com wrote:
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@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
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