Just got a 635 off ebay for dirt cheap (no 35 kit, only wanted for 6*6 ability). Ugly, ugly, ugly - but shutter, ap, and timer are all in working order.

One issue - focus at infinity is well "past" infinity.
Close up focus is as it should be (can focus at any distance actually) but will go past infinity focus when knob is only halfway there. Then everything out of focus after that point. It's as if there's too much throw in focus, but everything is nice and tight...
Can't quite figure out how this is possible, if close focus was off I could wrap my head around it, but close focus is fine - matches with distance scale on knob up to about 6 feet.
Don't have film in yet to test if viewing and taking lenses badly out of whack - they appear to be on the same plane though...

Any ideas?