Author Topic: Lock Kit Assistance  (Read 515 times)

Offline Jacob_S_P

  • Starting Member
  • *
  • Posts: 13
Lock Kit Assistance
« on: June 08, 2019, 02:40:50 PM »
To get some work under my belt and satisfy the urgent genetic itch, I bought a lock kit at the CLA show last year.
It s just kind of a generic counter, so far I have been cleaning it up and filing to get it going.
When purchasing the kit I was informed that the kit was all heat treatable.
I have an electric oven and have CCH modern parts - but I want this right. Anyone able to point me to a past thread explaining which parts at which tenps and times etc?
Any help is very appreciated.

Offline WadePatton

  • Hero Member
  • *****
  • Posts: 3940
  • Tennessee
Re: Lock Kit Assistance
« Reply #1 on: June 08, 2019, 04:34:04 PM »
Have you seen all the lock postings in the tutorials section?


http://americanlongrifles.org/forum/index.php?board=473.0


Also, most heat treatment and tempering discussion here tends to be in colors not temps, but also there are color to temp conversion charts if that is a problem.  Old timers didn't have infrared sensors or electric ovens.

There was just a thread on tumbler hardening here.  Good luck.
Hold to the Wind

Offline Mark Elliott

  • Library_mod
  • Hero Member
  • *
  • Posts: 4827
    • Mark Elliott  Artist & Craftsman
Re: Lock Kit Assistance
« Reply #2 on: June 08, 2019, 05:00:58 PM »
The only parts I normally heat treat are the springs, frizzen, tumbler/fly, and sear.   Hardening should be the same for all.   Just make sure they are hard to start; test with a file.  I temper the frizzen to 375F, the springs to 700F, and the tumbler/fly to 500F and the sear to 590F.   I also temper set triggers to 590F.  I polish the parts (springs/triggers) to be heat blued and reheat to 560F.   These temps have come from instructions from and conversations with Chambers, L&R, and Davis.     
« Last Edit: June 08, 2019, 05:08:13 PM by Mark Elliott »

Offline jerrywh

  • Hero Member
  • *****
  • Posts: 8242
    • Jerrywh-gunmaker- Master  Engraver FEGA.
Re: Lock Kit Assistance
« Reply #3 on: June 08, 2019, 06:08:19 PM »
I agree with Mark Elliott
Nobody is always correct, Not even me.

Offline Jacob_S_P

  • Starting Member
  • *
  • Posts: 13
Re: Lock Kit Assistance
« Reply #4 on: June 08, 2019, 08:41:23 PM »
I was not aware of the tutorials section, I will browse it thoroughly.
Mark Elliot that information is exactly what I was looking for. If memory serves, and that is a stretch, I believe I was told the parts were all 8120 but I may be wrong on that.