Well, I was going to just send my Kiev 4M off to Zack's and let him work his magic. Unfortunately, when I inquired, I got a (very prompt!) reply that he does not work on Russian or East German cameras.
Can anyone recommend another worker in CONUS who can clean and relube the advance gears in my (otherwise, perfectly working) camera, ideally without charging an arm and a leg? I don't want to just play camera roulette, keep ordering Kiev RFs until I get one that has all three of accurate shutter, accurate/clean/bright rangefinder, and reliable frame spacing. Not least because that last quality can only be tested by shooting and processing at least one roll of film.
I've done some fairly involved repairs -- fixed a Petri 7s that wasn't cocking after advance, cleaned shutter and repaired damaged focusing threads on a Kodak Reflex II, including realigning the focus of the two lenses. My first camera repair was to (temporarily) correct a shutter that was not quite fully closing on an Exa II. Never had one I couldn't get back togther -- but I don't have a good work space at present, especially not one where I could leave a camera from one day to the next if I can't get it all the way back together the first day. Based on the Kiev Survival Site, it looks like there's a lot of stuff to clean in just the advance/cocking/speed control set.