I have had 12 Model 92's over the years, I bought every one of them used, so they had been cycled lots before they ever met me. Two common problems I have seen are;
1) The loading gate screw. Too tight and sometimes won't flex the spring to load. Too loose and fall out with recoil vibration. Solution: adjust until it works smoothly. Then Loctite with the least perinate, I have used finger nail polish successfully also. (applies to models 92 & 94 only)
2) Several have been difficult to "Close" the lever into battery. Cause: The lever retention catch won't retract easily. Solution: Use a C-clamp to compress the latch. Then drift out the retention pin. The coil spring will most likely be full of grime. I flood the hole with break cleaner. If the spring is 3 coils install as is. If the spring is 5 coils, remove 2 before installing. Use C-Clamp to reinstall. Note: Failure to use C-Clamp has cost me a few of the latches! (this applies to models 71, 86, 92, & 94.)
Ivan