Talk Morgan Forums Morgan Sports Cars Morgan Three Wheeler & Super 3 Centra Compensator falling apart.....

I have done the job by drilling four 20mm holes at the corners and then cutting the straight sides with a jigsaw but that was with the bell housing removed and sawing from the inside. from the outside a small wheel on an angle grinder will do the trick. There is plenty of clearance for the blade on the inside but you could check to be sure by measuring through one of the corner holes. If you only want to get in for greasing then why not use a large hole saw? you should be able to see enough through a hole about 60mm in dia.