[Guest]

You may be able to strip it, how much depends upon the construction.

I'd certainly have a go at taking out the rotor. Remove the end bearing and turn it to min capacitance and see if it will withdraw. Catch all the balls at the front. This may give you enough access for more rust treatment. Put the balls back in with grease before inserting the rotor.

It may be worth a try soaking the stripped frame in thin phosphoric acid and then cleaning. Dishwashers do work. However, the Paxolin insulators absorb water and need time to dry out... a week on top of a boiler does the trick. Resistance drops to a few K Ohms!!

I see you have an e-mail so I will send you an article that deals with one I did. Probably not quite the same but it may give you ideas.

If you can get an exact replacement then that maybe the best bet.

Gary