Lock mechanism failure

[Trooper]

My wife and I were out making white smoke today. It looks like my wife can't pull her hammer back past half cock. I suspect a tumbler failure. Does anyone have an extra TC hawken Lock mechanism that they would sell?

 

[Justin.44]

Just out of curiosity, have you had the chance to take the lock off and have a look at what's going on when you pull the hammer back?

 

[necchi]

It's actually impossible to "suspect" tumbler failure with these guns.
Please remove the lock and look at how the lock functions, clean it, (brake cleaner spray then soapy water with a brush, then dry it, then oil it.)
Don't forget to "look" at the tumbler.
And tighten all 3 of those screws so the fly actually works.

 

[Trooper]

Yep, I did all that and more. I took the mechanism apart and found what looks like a very small plunger that may be a part of the tumbler. The rear underside of the tumbler has a small hole drilled into the bottom with what appears to be a small spring inside the hole. I assume this plunger fits into the hole and sits against the spring. At any rate, the shaft on this tiny plunger appears to be broken off which would cause the hammer sear from moving forward allowing the hammer to lock in the fully cocked position. Id like to locate a fully functional lock mechanism and compare them to see if my hunch is correct. BTW, It was a simple operation to strip and assemble the mechanism. As far as test after assembly, there was no improvement in the operation of the cocking mechanism.

 

[Trooper]

After a few hours of going over diagrams and comparing parts, I’ve discovered that there is an extension on the end of the hammer spring shaft that had broken away from the cap. Now. All I need to do is locate a replacement shaft for the hammer spring

 

[Trooper]

 

[Norman Brooks]

Check ebay.

 

[NorthFork]

Check with LCS and The Gun Works Emporium.

 

[McClura]

Check "Classic Firearms & Parts LLC- Classic Firearms & Parts LLC

 

[waarp8nt]

I recently purchased one from the gunworks, from tinkering with these locks there are two different main spring guides. One is a little thicker where it contacts the tumbler and one is somewhat thinner with a small ball at the tumbler. The latter version is much more prone to failure with breaks at the thinner spot by the ball.

https://www.thegunworks.com//custprodgun.cfm?ProductID=150&do=detail&Cat2Option=yes

 

[Trooper]

I guess I have the thinner model. I’ll check them out ASAP. I also checked EBay, but the sellers won’t ship to canada