Nev,
The bell housing is a magnesium alloy known as elektron, which is very light , but prone to wear issues . The aluminium clutch sleeve , which carries the angular carbon release bearing has a bolt on the underside which is driven by brackets and linkages to the clutch pedal. This bolt is prone to wear the slot in the direction of rotation of the engine, in which case clutch operation can become tricky and noisy. Without more symptoms it is a mite difficult to diagnose whether this is the route of the problem.
Did you check the sleeve and carbon ring for wear before assembly? What did the slot look like? Was it worn on one side? Are the holes in the linkages elongated? Are the bolts in the linkages showing signs of wear? All of these are all too common problems, especially on TR +4s which are now 50+ years old.
If this slot is badly worn , the standard remedy is to over-bore the bell housing and sleeve it back to standard. There is a bodge with a piece of metal and self tapping screws to cover the worst area of the slot which may work for a while, but the former is by far a preferable solution.
The other thing that is well worth doing (especially while everything is out of the car is to well and truly lubricate this sleeve via the grease nipple on top of the bell housing (make sure it is clear , old grease subjected to heat has been known to clog these up).
Another thing to check (and you will need the engine and bell housing out of the car for this I am afraid), is that the rear face of the bell housing (where it mates with the Moss Box is absolutely square to the rear face of the block. Even when a tiny amount out , it can affect the operation of the clutch, but it is relatively easily corrected with a few strategically placed shims (which need marking to ensure they always go back in the same place on assembly)
Last edited by MOG 615; 24/02/17 08:56 AM. Reason: more data
