[HELP] Clutch issue - Woodhouse and Mitchell Junior 70 lathe

[Mayhem]

Thanks guys!

With regards to the grub screws, yes there were.  I have removed them after finding that if I tightened them up it 'locked' the hub up (i.e. no longer able to move the selector).  To me, this suggested that the holes went all the way through the hub and why I tried bolts.  I cannot get any grip with a bearing puller, given the taper at the back of the hub.  Heat is on the list but haven't tried that just yet.

I cannot actuate the clutch by hand with it out of the lathe.