If the lever is to the right or center even, It is likely wear to the hinge pin. It is definitely repairable but you may need to send it to a gunsmith as not all 'smiths would do the repair. I have had a couple older guns tightened by spray welding the hook and refitting the barrels to the face. It sounds hard, but isn't. I think I paid $90 (plus shipping) the last time I did this on a sxs. Probably most of the 'smiths taht are named by people on this board will do this type of work, all around the country. I've had this done by Cole Haugh in Indiana.
