lock trouble

[robin_du_bois]

I have a flintlock I bought from TOTW with a chambers gunsmith lock.  Recently I've noticed a disturbing trend when the hammer is pulled to fire position.  Any light weight to the back of the hammer or flicking the frizzen up or down will cause the hammer to fall as if the trigger had been pulled.

Any suggestions?  I have a davis set trigger set-up.  Could the set screw (I don't even know if the davis double triggers are adjustable) be too loose?  Or is my mechanism perhaps dirty.  I have fired about 100 rounds through the gun, been in rain and, most recently, snow but never had the lock off the gun (and don't exactly know how to do this.

Any advice is surely appreciated.

[lostid]

oh boy,, it's tyme to do some cleaning.
 Robin, your the feller that went to BWCA and picked up yer rifle from track right??(said so on this very site?) I live near there so I remember.

 Your Davis DSDT trigger "DOES" have an adjustment. And temperature changes/transportation issues can change that screw setting. also the Jim Chambers "Siler" lock has a thing called a "fly detent" that's inside the lock that can be subject to fowling.(and more so with a flinter)

 Most likely it's yer lock,,you'll have to get courage enough to pull it. It's easy,,don't worry, your rifle was made to have the lock pulled and cleaned on a regular basis. (Once you have the lock out it's easy to "tune" he trigger the way you want it with that little screw 'tween the triggers)

 Pullin the lock is as easy as removing those screws you think hold the lock in. sum got one,,sum got two,,then just wiggle and pull on the lock till it comes out. I'm one swing shift now and need to nap, if others cain't help with the procedure,,then PM,,we'll swap ph#'s and I'll walk ya through the entire process.
luck too ya,,
p.s. pull the rock 1st,,ya don't wanna get cut.

[dlemaster]

Sometimes swelling of the wood in the lock mortise will bind the lock, keeping the sear from dropping completely into the full cock notch, with the detent in the tumbler any pressure on the cock will cause it to fall.
As lostid said take the lock out by turning out the lock screws a few turns and lightly tapping on the screw heads, this will push out the lock without damaging the wood around the mortise, then finish taking out the screws.
If the interior of the lock is clean hold the interior of the lock over a candle flame just so the flame touches the parts. This will leave a deposit of black soot on the lock parts. Reassemble the lock into the gun and snug up the screws again. Then operate the lock several times. Again remove the lock, if the lock is binding on the moving parts it will leave a black stain on the wood where it touches. Gently remove the stained wood by scraping with a very sharp knife or wood chisel. Repeat the process until the lock no longer binds and the sear drops into the full cock notch completely. Clean and oil the lock, then put something (TrueOil or linseed oil ect.) on the wood in the lock mortise to seal it and keep it from swelling again.
Hope this helps.

Regards, Dave