Hi Lewy71,
You are absolutely spot on with those extras not letting you remove the clutch half.
This is a previous tenants idea of either fixing a wobbling clutch body or seeing the newer design and trying to copy it.
Those extra lock up grub screws are what's is pinning the body to the shaft.
You will have to undo the nuts and then use an allen key of the correct size to unscrew the grubs out of the casting.
Before you go any further with this clutch body I'll have to ask you, do you think the body was revolving absolutely true or did it already have the slightest amount of wobble when revolving ?
The body you have there looks to be the first of the die cast bodies that were substandard compared to the predecessors that were manufactured out of cast iron and thus much more robust but far more costly to produce.
Personally if in any doubt what so ever I would discard it and replace with the current style unit that utilises two set screws that pin the body to the PTO shaft at 90 degrees to each other and not allowing any play to eventuate.
Cheers,
BB
