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Triumph TR6 - Clutch adjustable puh rod

My 75 TR6 clutch seems very heavy compared to the MGB that I previously owned and engagement is with the pedal close to the floor. I have read the article discussing the impact of some after market clutches (from the CD - thanks Rick C) but as far as I know, my car has the original unit still installed.

Has anyone had experience of the adjustable clutch slave push rod the is listed by MOSS and perhaps others? It would appear to have some valuein that it would take up slack that had developed over time due to wear at pivot points and bring the pedal operating point further from the floor.


B.J. Quartermaine

I agree the clutch is a heavy push; this is normal for the TR6 though it is tiresome in traffic.
Odly, the clutch on my TR4a, which is similar, is much lighter than the 1975 TR6 I used to have.

Other than changing to an expensive clutch actuating system offered by some of the UK vendors I am not aware of a solution.
Simon Rasmussen

Barry The adjustable clutch rod is a great and easy fix, and although it dosnt fix the worn parts, it certainly bypasses the need for replacement joints and bearings that will not be needed for maybe the next how many tens of thousand miles, check the rest of the system first, could need just a good bleeding
Clive P


Like the Fram filter guy says, 'pay me now or pay me later'. Failure to correct damaged or worn parts is only inviting trouble or a tow call. The TR6 did not use and does not require an adjustable slave cylinder push rod if all is in good working order. The adjustable rod system was used on earlier models prior to the self-adjusting system on the 6's.

Yes, the clutch is heavier than the MGB and several other cars, part of the reason for the master cylinder change in the 1970 model year. This did not stop my 5 foot nothing, 100 lb. dripping wet wife from buying her '75 new and continuing to drive it the last 30+ years. If it is truly unbearable, get the HDVA hydraulic throw out bearing package. Much lighter pedal and half the travel.



Since the TR6 has an adjustable clutch if you put in a different length rod the slave cylinder will simply compensate for the length and nothing will change. I've tried it all. The only real solution I found was to repair/replace every part that wears, and there are quite a few of them. If you do this you will have a clutch that is comparable to any modern day clutch. Some say that a TR6 clutch will never be right, however from my experince this is not true.

Doug C.
Doug Campbell

Barry-If check the archieves for "adjustable clutch push rod", you will see that this subject has been kicked around quite a lot. I think the bottom line is that it won't decrease the pedal pressure or solve a clutch release problem.
Berry Price
BTP Price

Doug Campbell is "right on"re this one! A longer pushrod will ONLY move the slave cylinder piston further down into the cylinder. Everything else stays the same.....

No free lunch here I'm afraid; its a case of "pay me now or pay me later".As Doug says "repair/replace every part that wears".

Good luck!!

Many thanks for all the comments - the ref to the archives was particularly useful. I will examine all the linkages for excess wear once the car is home from storage. The plan is to replace the slave cylinder and hose since there were signs of leakage around the end cap.


B.J. Quartermaine

I need to replace my throw out bearing (rattling in "N") I might as well go for that nifty HDVA version Don speaks of......costly?

Heres the site for HVDA:
A Blackley

Just a thought before this thread dies. I just read the Moss ad for the adjustable push rod and it omits some info. The adj. pushrod as used on the TR3-4A had an external spring between the slave cyl. bracket and pushrod clevis. This pulled the pushrod&piston to the bottom on the bore when the pedal was released. The pushrod was adjusted untill the T/O bearing contacted the pressure plate, then backed off about .100",thus creating some free play when the clutch was engaged. The free play didn't seem to cause a release problem on the older type pressure plate and/or the larger dia. master cyl. (.75").
The TR250-TR6 omitted the external spring and the small internal spring in the slave cyl. kept the T/O bearing in light contact (or close to it) with the pressure plate. This had the effect of making the clutch self adjusting. When the master cyl dia. was reduced to decrease the pedal effort, the stroke at the slave cyl. was also reduced and any free play or slop in the linkage can produce release problems.
The bottom line is that free play can cause problems and if the adjustable pushrod is used without an external spring,it doesn't provide any change or benefit.
BTP Price

This thread was discussed between 28/02/2006 and 16/03/2006

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