I've just looked for the diagram of the tool I made but can't find it. I did find this picture in my Lucas Mag Dyno workshop manual.

email (option): horror@blueyonder.co.uk

Horror. I think what Nigel is asking, is how do you gauge how tight to do the nut up?

Ron

email (option): ronpier@talk21.com

The clutch should slip with a load of between 4-10 lb ft applied to the nut.