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'73 set trigger question.
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November 20, 2022 - 7:54 pm
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On my 1st model ’73 when I operate the lever, the hammer follows the action to the fired position. If I operate the lever bringing it all the way down and push ahead on the trigger, the hammer stays cocked. I can close the lever and shoot it. What’s causing this issue? I really don’t care if the set trigger works or not, as long as you can shoot it. I’ve heard horror stories about how finicky this trigger assembly can be.

 

Thanks, Jim

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November 20, 2022 - 8:04 pm
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Hopefully 1873man, Bob, will respond.  My first thought is the notches on the hammer are worn. Have you tried to adjust the set screw for the set trigger?  Several internal parts that could be worn, broken or missing?

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November 20, 2022 - 8:10 pm
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[email protected] said
If I operate the lever bringing it all the way down and push ahead on the trigger, the hammer stays cocked. I can close the lever and shoot it.

  

When you do this, is the trigger in the set or un-set position before you fire it?  I assume you’ve experimented with turning the adjustment screw, but that hasn’t corrected the problem.

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November 21, 2022 - 12:41 am
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The problem is not the set part of the trigger. Its going to be the sear and hammer. If you pull the hammer back by hand does it cock? It could also just be the sear gummed up and not dropping in the notch or a bad spring not pushing the sear.

Bob

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November 21, 2022 - 1:34 am
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1873man said
The problem is not the set part of the trigger. Its going to be the sear and hammer. If you pull the hammer back by hand does it cock? It could also just be the sear gummed up and not dropping in the notch or a bad spring not pushing the sear.

Bob

  I just took the whole assembly apart. Thinking it’s the spring pushing the sear. Do you have a detailed drawing of this spring? Micrometer sizing, thickness etc?

  

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November 21, 2022 - 1:56 am
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 Mark Douglas did a video on a set trigger repair. You need to watch it. Set trigger repair August 13 2022. T/R

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November 21, 2022 - 2:22 am
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Here is a copy of a article about set triggers. First you to find out what is the problem. Dirt, springs or worn stuff.

Bob

https://winchestercollector.org/forum/winchester-rifles/1873-set-trigger/

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November 21, 2022 - 2:23 am
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TR said
 Mark Douglas did a video on a set trigger repair. You need to watch it. Set trigger repair August 13 2022. T/R

  

Thankyou!

 

Jim

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November 21, 2022 - 2:35 pm
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Also the springs could be install wrong as well.

Bob

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November 24, 2022 - 9:56 pm
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1873man said
Also the springs could be install wrong as well.

Bob

  

Correct again as usual. I believe the middle spring was incorrect in length. It’s the thick one with a small semi circle shaped ball on the upper end. It wouldn’t fit into the recessed hole on the bottom of the piece it goes to, it was a smidge long. I annealed it, put in the mill and elongated the screw hole about half again the original size towards the front, hardened and tempered it and slapped it together. WORKS GREAT! Many many thanks to you sir. I’m beyond pumped! This has bothered me forever and I’ve had it apart numerous times taking it completely apart trying to figure it out. Even ended up making the other two springs from scratch in the process. Again, thanks for your expertise.

 

Jim

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November 24, 2022 - 9:56 pm
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Correction, top thick spring.

 

Jim

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November 24, 2022 - 11:28 pm
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[email protected] said
Correction, top thick spring.

 

Jim

  

Jim,

That’s great news that you got your set trigger working.  They can certainly be finicky if everything isn’t just right.

You were right the first time about the thick spring being in the middle of the stack. 

The correct order is:

Bottom – The long, thin sear spring – oriented to the left.

Middle – The thick knockoff spring 

Top – The small, thin catch hook spring – oriented to the right.  Mark

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November 25, 2022 - 12:58 am
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Mark Douglas said

[email protected] said

Correction, top thick spring.

 

Jim

  

Jim,

That’s great news that you got your set trigger working.  They can certainly be finicky if everything isn’t just right.

You were right the first time about the thick spring being in the middle of the stack. 

The correct order is:

Bottom – The long, thin sear spring – oriented to the left.

Middle – The thick knockoff spring 

Top – The small, thin catch hook spring – oriented to the right.  Mark 

Seriously? Crap, now I gotta take it apart again and redo that. Lol. Thanks for the heads up!

Jim
  

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November 25, 2022 - 2:12 am
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Jim,

If it’s working correctly, I’d leave it be.  I suspect that by elongating the hole in the knockoff you changed the geometry enough that it’s working, even with the springs not stacked in the proper order.  As long as the trigger is working properly, I can’t imagine that it will cause any problems to leave it the way you have it.  Mark

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November 25, 2022 - 2:17 am
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Mark Douglas said

[email protected]ebr.net said

Correction, top thick spring.

 

Jim

  

Jim,

That’s great news that you got your set trigger working.  They can certainly be finicky if everything isn’t just right.

You were right the first time about the thick spring being in the middle of the stack. 

The correct order is:

Bottom – The long, thin sear spring – oriented to the left.

Middle – The thick knockoff spring 

Top – The small, thin catch hook spring – oriented to the right.  Mark

Got it switched. Hope this is the last time I have to take it down that far, lol. Thanks again.

Jim
  

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