DrtyHarry wrote:Loosen the stop pin and rotate? How can it rotate? Can't get a grip on it...
I don't expect it to work like new, but I assumed it can be "tuned" back to normal?
To a degree yes, it just depends on what's causing, or allowing, the play in the first place. Where's the lock up at? If for example the lock is completely over to the side and bottomed out, you're pretty much SOL.
There used to be a couple models that had elliptical shaped stop pins instead of a standard round cylinder. The idea was you could turn the stop pin to fine tune lock up. I've never seen a Military with this but who knows. Either way, loosening the stop pin screws and turning the pin cylinder 90 degrees wouldn't hurt. Just loosen the screws, turn the pin a bit, then tighten the screws back up.
If that doesn't work and the lock bar isn't worn out and bottoming out then I suppose your washer may have worn. This is something only Spyderco can fix. To be safe I would avoid taking it apart just in case you need to send it in. I doubt something like this is covered under a warranty so there may be a bit of a charge, but I can't speak for Spyderco so you may want to discuss it with them.
If the lock isn't completely worn out, my guess is a new set of washers and maybe a new stop pin will get it back in shape, washers alone may be all it needs. It really just depends on how much use and wear the pivot has seen over the years.