Interesting post.I just replaced my old dist with a new one. Have not sent the core back and would like to rebuild it. Looks like the shaft is worn as there is wobble at the top. So bearings may need replaced. Is there a way to do this with out a lathe and expensive tools?
One other note. The new dist was aluminum casting, the grease cap hole is 1/4 and not threaded.So no cap or grease fitting. Had to take the points out to change the screw thru the plastic insulator as that was backward and the eccentric that moves the point gap was missing. I am debating a letter to The co but my Mandarin is weak.