GBS said its possible to notch the bellhousing to get a locking nut either side & hold the clutch cable in place. I decided to notch a nyloc instead; partly because its a lot easier to access than the bell housing for cutting & mostly because its more reversible - i.e. If I make a mistake I am only destroying a nut worth pence.
The M10 nyloc plainly can't be tightened as much as when it was whole - but its a good tight fit on the threaded rod:
The M10 nyloc plainly can't be tightened as much as when it was whole - but its a good tight fit on the threaded rod:
The extra nut just helps hold the cable in place. Now there should be no chance of this end flexing when the pedal is not pressed & letting the end of the cable come out of the clutch release lever:
Update - while this works to anchor the end of the cable, its laborious to take off - unscrewing the lock nut from under the car along a couple of inches of fine thread.
