SBM Distributor overhaul DIY?

gzig5 said

I'm going through my distributor to clean out 40 years of gunk and install the FBO limit plate and springs. Is there a DIY around here that gives the basics for disassembly, lubrication points and such? I know it's not rocket science but....

How do I decide which springs to install? I have three different wire sizes.

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It may not be rocket science but its three dimensional! :)

If you have it on the engine still I'd measure the timing every few thousand RPM. Then its easy to figure the advance curve in it now.
If its unmolested, FSM specs will at least give a pretty good idea of what it should be.
If yours has a long advance (smog era) follow what I showed Rockable to do here:
360 Tune Up

If you need to shift the starting rpm of the advance or the secondary spring, see here:
Erratic Timing

Changing the springs changes the slope, and the starting point.

For oiling, it varies but most have a felt pad that takes a few drops. I think @halifaxhops has a "how to Article" for that and maybe what else gets a little.