Re: before I break this.......(1970 40 HP Merc Rotor)
The later 400 the rotor was held with loctite and to get it off without breaking it you had to use a puller after removing the stator you use 2 srews or bolts that are 10-32 by 3 1/2" thru a flat plate puller, the bolts screw into the distributer body and the puller pushes on the crankshaft and you pull the dist. body that takes the rotor off the shaft - piece of cake