Kimber CDP II Trigger Job

[GorillaGunworks]

Hey Guys so i just Uploaded Part 4 of the Kimber CDP II Project where i do a Trigger Job, Hope you guys enjoy this one, and please feel free to comment on the video, Like and Subscribe to my channel. i really appreciate all the support from this Community.
https://www.youtube.com/watch?v=8oAHmySVr9E

 

[log man]

Watched with interest. Surprised you aren't using a jig and explaining the correct sear primary angle. Only the hammer hook tips actually make contact with the sear primary, so polishing the flat before the hook face doesn't really do anything. Did you adjust the sear spring leafs and what was the criteria for doing so?

LOG

 

[4V50 Gary]

You don't need a jig to get the sear angle right. Use a vise, a shim and a stone.

 

[log man]

So how does that work?

 

[David R]

Shim and stone to set the width of the contact area?

David

Sent from my Pixel 2 using Tapatalk

 

[log man]

Using a shim .020"-.120" on the stone is common for the secondary angle, but how about the primary?

LOG

 

[4V50 Gary]

Set the sear in the vise, leaving it slightly above the shim. The sear should be at the angle you want to stone it. Then lay the stone on the shim and push. When it's done at one angle, then reset the sear for the other angle with the shim again in place to limit how much you stone.

 

[log man]

With the sear buried in the vise how do you check for the correct angle, and what is the correct angle?

LOG

 

[log man]

Okay, that is the question, knowing the correct sear primary angle helps to actually stone on that angle.

http://gunsmithinfo.com/images/Drawings/1911 Sear.png

In some fixtures this is hard to check in set up, but can be determined. Here is a Power custom jig which makes checking during set up direct.

LOG