Quote from: singleminded on May 22, 2026, 08:46:14 PMHave you tried moving the lever round 1 spline on the operating shaft?
John hood

Occam's razor is a philosophical and scientific principle that suggests the simplest explanation, requiring the fewest assumptions, is usually the preferred one.

I feel stupid - thanks for reply

Regards Ian Roberts

Have you tried moving the lever round 1 spline on the operating shaft?
John hood

Hello
I have a question relating to the clutch worm spindle that pulls the clutch pressure plate
The clutch plates has friction material(not cork) and following parts fitted to allow the clutch pressure plate to be pulled away to allow clutch plated to dis-engage.

F.395 Operating lever
F.396 Clutch operating lever, nut
F.397 Worm spindle and collar
F.399 Thrust bearing (replaced by modern equivalent and shimmed to match original bearing thickness)
F.400 Thrust bearing star plate

My observation without the clutch cable being fitted, the worm spindle has just under a quarter turn before it touches the pressure plate.
If the clutch cable is fitted and adjusted to take up the worm spindle quarter turn, then the operating lever is unable to turn enough to raise the pressure plate.

Simple solution would be to shim the worn spindle to reduce its initial quarter turn travel.

Question - what travel should the worm drive have before it touches the pressure plate before any clutch cable fitting or cable adjustment.

what length are the filister screws that hold the worm drive cover to the outer primary cover

Your comments are welcomed

Regards Ian Roberts