Kodak Rangefinder 35
I had to solder a broken post that controls the flash sync, clean out the shutter that wouldn't fire, clean out the rust and gunk everywhere else, replace the light seals, clean out the self cocking mechanism, recalibrate the self cocking mechanism (it would occasionally slip), replace the rangefinder mirror (which due to it's tiny size was a real pain to cut out), and recalibrate the rangefinder (which I'm still working on because it's not as intuitive as other rangefinders I've messed with).
I also find a tiny spring on the ground that I can't figure out where it went. I'm not even sure it's from this camera, as the camera seems to work fine without it, and the spring itself doesn't look like one I've ever seen in a camera before. Lastly, it has a flash delay sync mechanism that I can't figure out how it works. I slide a lever down, and it pops back up. Does it do anything? Maybe that's where the spring went (but I couldn't see where). Not that that matters. I would probably never use a flash with it anyway. And lastly, has anyone ever taken the whole shutter off? Where do you find a spanner wrench to reach that rear jam nut?
Also, does anyone have an idea of how to open up the back of those old Ansco 620 film cameras? Like a Readyflash or Panda? I have a few with dirty lenses and shutters that could use a good cleaning, but can't figure out to get in there without drilling out some rivets. And I don't want to buy a riveter. Not for a couple single speed, single aperture, fixed lens cameras.