A beer or two later and willing to break in order to educate I've managed to remove the clutch.
I needed a 14mm socket which was then tapped onto the clutch bolts with a rubber mallet.
An impact driver did the rest.
Now I can see that the starter pulley housing looks OK but there is an obvious issue with some plastic sleeve or similar on the crank side.
Are these replaceable at all? I did search the Oracle named google but couldn't find anything on these specific parts.
TIA
Last edited by Lockstock; 18/02/22 10:54 PM.