If you add the return spring and use the non adjustable operating rod, the
clearance between the throwout bearing, a.k.a release bearing, and the
clutch will be so great that the clutch, already marginal, will probably not
operate at all. Isn't the release bearing actually supposed to be riding on
the fingers of the clutch cover on diaphragm clutch TR's? Zero clearance?
The earlier cars required running clearance between the bearing and release
fingers on the clutch cover; hence the spring and the adjustable length
clutch rod. The spring always returned the slave cylinder piston fully into
its bore and the rod allowed a bit of free play to be set into the system to
make sure that the release bearing was not riding on the clutch cover.
Ed Woods
-----Original Message-----
From: Tony Rhodes <ARhodes@compuserve.com>
To: Martin Libhart <mlibhart@feist.com>; INTERNET:triumphs@autox.team.net
<triumphs@autox.team.net>
Date: Wednesday, June 10, 1998 7:58 PM
Subject: RE:More Slave Cylinder
I am told that the Diaphragm-Type clutch TR4A and later do
not require the external return spring located between the
clutch operating lever and the flange around the slave. My
4A does not even have the holes that would accept the spring.
That being said, I have seen parts pictures for the TR250 which
DO show the spring! Does your flange have a hole to accept
the spring? Also, I doubt that it would hurt anything to add the spring...
-Tony
ARhodes@compuserve.com
>In my quest to resolve problem in my earlier post concerning my release
>bearing not fully disengaging from the fingers on the clutch housing, I
>discovered a photo in the old Clymer's TR6 manual that shows an external
>spring mounted on the slave pushrod clevis and attached at the other end
>to the slave mounting plate. This would definitely provide more
>positive return of the slave pushrod. Upon inspection, my TR6 does not
>have this spring in place. Only the spring at the pedal bracket under
>instrument panel. Was such a spring at the slave cylinder standard, and
>mine is missing courtesy of a PO or for other reason?
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