Gentlemen, a couple of months ago I purchased this SAO model 14-2, made in 1964. I paid 250€ so can't really complain. Craftsmanship appears to be good, chamber throats measure about .3575-.3580", cylinder gap is constantly .004" with nearly zero endshake and the revolver passes range rod test, at least with Brownells Service die.
However, the revolver has seen some amateurish abuse, some of which I have been able to correct but still certain concerns remain. One of them is extractor rotational play. I have the newest edition of Kuhnhausen's S&W shop manual and he suggests that max. .001" play would be tolerable. If greater, he doesn't talk about correcting the issue but merely advises to make sure that hand is able to rotate cylinder to positive cylinder stop/slot engagement at all chamber positions.
Surprisingly enough, mine still does that before hammer reaches full cock, even though the extractor play is maybe .020" when viewed at the points of the extractor star (see pictures of the extreme positions). Closer the center pin, play becomes shorter obviously. This is when hammer is cocked slowly while dragging the (empty) cylinder with thumb. Moderate drag isn't enough for the hand to push the extrator "out of alignment" which I guess is the reason timing remains OK. I haven't tried with severe drag applied but I don't think that is necessary. Both cylinder and extractor match the frame serial number.
The extractor alignment pins are present in the cylinder but as this is my first S&W, I'm too noob to tell whether the pins are original or not. It seems though the pins are bent somewhat. Perhaps someone has tried to tighten or disassemble the cylinder assembly without supporting the extractor. I don't know yet if the pin holes in the extractor are enlarged/deformed. The pins are fairly short, longer ones might give better support. If original S&W pins, are they simply friction fit and removable?
I'm thinking to disassemble the cylinder for more evidence. I have Brownells extractor rod remover for the job. I also have Brownells extractor support tool but empty cases seem to work better.
Thanks for any advice and Merry Christmas!