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Tubs,
Check messages. Also a dremel tool & Pitman arm puller will remove the magnet rotor. Just grind a little off the edges. I made my own too & it still removes pitman arms too. Pull the two screws from the rear of the plate to remove mag plate. Clean both bushings surfaces & lube lightly. That is why the ground wire is needed. Be sure to take the points apart & clean, be sure all insulating bushings are in place & use a ohm meter to be sure it’s insulated from the ground plane.
I went to a good hardware store & bought two hardened pins to remove the impeller cover, all others will bend or break. Be sure to add prop nut & washers so the cover stays engaged & not jump out. Use thread cleaner to help too & heat the case. Be careful, will break easy.
Jeff