SBM Distributor overhaul DIY?

Great info, thanks!
I've got the three spring kit from FBO so I don't think I should need to turn the eccentric, but I have a gauge I may be able to compare the springs with.

I put some light grease on all the sliding surfaces and will lube the felt up. I don't ever remember putting oil in the distributor as part of maintenance but that was 30+ years ago since I actually was tuning an engine so memory may be fuzzy.

One new question if I may..
Should the vacuum advance canister hold a vacuum when I pump it down with the hand pump? Seems to me like it should, but mine doesn't. It starts to move when I get to about 5 lbs but I have to pump like crazy to keep it from going back to the relaxed position.