I pulled the two hubs out of their evaporust baths and wiped them down good with shop towels. They were nasty black but they wiped away to nice clean metal. I ran them through the parts washer and then wiped them down with acetone. I stuck them in an old oven set at 110 degrees for about 20 minutes. Before I cleaned them up, I cut out some circles with my glowforge laser cutter to fit nicely inside the bearing housings on each side of the hub. Each hub got 2 circles. One is 2.96" the other is 2.07". I cut it out of .050 chipboard (heavy cardboard. think picture frame backer.) I taped the bearing surfaces just incase and popped in the circles. I did this so inside the hub is bare cast steel. So far each hub has 2 coats of primer. Next week, I'll put two coats of semi gloss black on. Next thing is to draw up some gaskets for the hub/drum surface in Autocad and cut them out on the glowforge. I need to do some research to see what thickness to make them.
