Fought with a sticky film advance on a Pentax Spotmatic for almost a week
Got this Spotmatic in last Tuesday, looked clean, but the film advance lever was totally stuck. I figured it was just old grease, a quick clean, maybe an hour tops. Opened it up, cleaned the old gunk out of the gear train, re-lubed the spots the service manual said, put it back together... still stuck. Spent the next three days going deeper, checking the shutter timing gears, the mirror box, everything. Finally, on Friday afternoon, I found it. A tiny, almost invisible sliver of metal from a broken spring had wedged itself between two gears in the bottom plate, something you'd never see unless you were looking right at it under a bright light. That one little shaving cost me about 15 hours of work. So, what's your take? Do you always do a full, deep strip-down on every 'simple' sticky advance, or do you start with the basics and hope for the best? I'm curious how others handle these time-sink jobs.