lock bar late lock up fix

[davek14]

I have a rather inexpensive liner lock knife with late lock up. The lock bar is kind of flimsy and, although it normally travels about halfway across, if you open it hard or fast it travels almost all the way across and is actually hard to disengage.

It's a nice knife otherwise and would make a good work knife. Anything I can do? It's not a real expensive knife so taking it apart and playing is certainly an option.

 

[irona]

Unfortunately this is a pretty hard problem to fix. Other than returning it for a new knife or making an entirely new liner, I'd say it would be best just to learn to live with it. The problem is that to fix this, you would have to add metal onto the tang of the blade or the top of the lock bar, which is considerably harder than removing metal if the liner was too early. You /might/ try disassembling the knife and gently bending the bar back so it doesn't have as much spring to it, but I would be very careful doing so as it could snap off or over bend. Good luck!


Sent from my iPhone using Tapatalk

 

[Jason B.]

Sounds like a tolorance issue and not a lock issue. Most liner/frame locks will travel further with hard openings and hard use, it's a design feature and SHOULD HAPPEN. It's sounds like you have stop pin play and probably a liner and lock face that was not ground properly.

Probably not something you could fix.

 

[smith357]

I fixed the same issue on an inexpensive knife by completely removing the liner and using a small hammer and rounded punch to peen the metal of lock bar and make it longer. Then stone the face of the lock bar flat.

 

[thebrain]

Adding a larger stop pin would fix your problem .

 

[jftman]

Some knives respond to loosening the pivot and handle screws then applying up pressure on one cornor with thumb and down pressure on opposite cornor with finger. Maintain this 'torque' then tighten pivot and screws diametrically.