Marking a new sear spring?

[brightboy]

Hey, Friends!

I need to make a new sear spring for my Jukar .45 kentucky - can anyone share wisdom or

point me to a good tutorial?

 

[64Springer]

That's a first generation Jukar/CVA lock. Hard to get parts for them.

Contact Deer Creek Products.

Ask them if a Traditions second generation sear spring will work.

Or just buy one and try it. They're not expensive.

 

[brightboy]

Absolutely!

I'd also like to take an opportunity to teach myself this skill in a meaningful application but I appreciate your line on the new spring!

 

[waarp8nt]

I have successfully made a few springs using the book and spring stock purchased from Dixie Gun Works. It will be a lot easier since you have a spring to copy. Dixie sells a lot of pre-made springs too.

A couple of words of advise in addition to the book. Many times folks heat the spring too bot before the quench, cherry red is somewhat dull not super bright. Bring the spring back a little by soaking it molten lead for about an hour.

Rather than type all the details, here is a link to a similar question I posted. 44Man give good detail on how to bring the temper back;

https://castboolits.gunloads.com/showthread.php?328733-Spring-help-and-advice-please
The book from Dixie Gun Works;

https://www.dixiegunworks.com/index...oduct_name/BK2017+Simplified+V-Springs+Manual
Spring stock of various sizes, although the sear spring is small, I would measure it to try to match it up;

https://www.dixiegunworks.com/index/page/search?FullText=Spring+stock

 

[brightboy]

I have successfully made a few springs using the book and spring stock purchased from Dixie Gun Works. It will be a lot easier since you have a spring to copy. Dixie sells a lot of pre-made springs too.

A couple of words of advise in addition to the book. Many times folks heat the spring too bot before the quench, cherry red is somewhat dull not super bright. Bring the spring back a little by soaking it molten lead for about an hour.

Rather than type all the details, here is a link to a similar question I posted. 44Man give good detail on how to bring the temper back;

https://castboolits.gunloads.com/showthread.php?328733-Spring-help-and-advice-please
The book from Dixie Gun Works;

https://www.dixiegunworks.com/index...oduct_name/BK2017+Simplified+V-Springs+Manual
Spring stock of various sizes, although the sear spring is small, I would measure it to try to match it up;

https://www.dixiegunworks.com/index/page/search?FullText=Spring+stock

Thank you!

 

[Compressorguy]

Hi, I would probably just make one out of a piece of jig saw or hacksaw blade, especially since you have the pieces to copy. Here’s a tutorial for making a “leaf type” mainspring, some of which will be similar to a smaller sear spring. Couldn’t find anything specific to a sear spring.



Or if you wanted to splurge a bit for a complete back up lock, there’s this

https://www.ebay.com/itm/2664825488...T/3dLUHGG6LCCRELvbpHdHfIgDg=|tkp:BFBMmu2To_Vi

 

[ZUG]

My suggestion is to find a spring on one of the replacement part suppliers such as - Gun Parts & Firearm Accessories | Numrich Gun Parts, maybe Welcome to VTI Replica Gun Parts - VTIGunparts.com Online Store - or others - do a search online.
Making a V-spring with such a tight radius and not have it fail is tough. Can it be done - sure - you may have to make a few before you are successful but try it you got nothing to lose. I would use 1075 annealed spring steel and as thin as you can find say 0.032" thick and thin down the leaves to a taper towards the working end. Form it into shape with heat but don't burn the steel. To heat treat it heat to a salmon color all over and quickly quench in warm automatic trans fluid or canola oil. Then temper in a lead bath (725 -750 degrees) for about 15 minutes - you don't need any longer than this because your part is thin.
NOTE: Place your quench oil close to your part so as not to lose any heat as you move to the quench. Warm your quench fluid/oil to about 125 degrees this will reduce air bubbles from acting as an insulator around the part as you enter the part into the quench. Move the part while quenching until cool to the touch - remove part clean it then work the spring (flex it) slowly for a few cycles before you put it into full use. Good luck.