General discussion > Gun Building
Removing Tumbler
DHouse:
I cannot find a thread to answer this kind-of-dumb question. I'm trying to separate the tumbler from the cock. Were there ever any locks made where this square-hole is decorative and somehow not functional(doesn't make sense for something that's hidden)? I'm using an old drill rod to try to knock out this tumbler insert and nothing is budging and I'm afraid I'm gonna damage something.
I'm going to make a brass square-shaped knocker-out-er and try that. It is the first time I'm needing to do this to a lock and it's a little surprising the amount of force needed to knock it loose.
BrianS:
Have you let a bit of penetrating oil soak in? Or heat the cock a bit to take advantage of heat expansion?
Bob Roller:
I was going to suggest a pin and then hit it but if that won't work then maybe wedges from opposite sides will.
Is this a new made lock or an old one that hasn't been apart for a century or more?
Bob Roller
Jim Chambers:
Remove all the internal parts of the lock being careful not to misplace the fly.
Open the jaws of your vice just enough for the tumbler to fit between the jaws with the plate on top of the jaws.
Using a punch that fits ON TOP of the tumbler square (not down in the screw hole) give the punch a good hit with a hammer.
A piece of cloth draped over the vice jaws to catch the tumbler saves time trying to find it if it bounces beneath the bench.
This method always separates the tumbler from the cock/hammer without any damage.
Eric Krewson:
My cock remover fixture, nothing flies across the room. I had to write what it was on the block of wood because I kept throwing these away when I cleaned off my workbench. Put the tumbler in the hole with the lock plate on top of the block and tap the tumbler out of the cock with a properly sized punch.
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