Author Topic: Funky Trigger  (Read 4380 times)

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bmartens02

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Funky Trigger
« on: January 22, 2008, 07:47:27 PM »
Kivaari,

I have a Chinese SKS and when firing the gun, everything is normal.  But playing around with it, I noticed that when you keep the trigger squeezed and operate the bolt slowly, it drops the hammer when the bolt closes, but if you operate the bolt fast, the hammer does not fall when it is closed. 
What is causing this?

BTW, the trigger does not match serial # to the gun if that helps.

Thanks,
-bmartens02
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bmartens02

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Re: Funky Trigger
« Reply #1 on: January 22, 2008, 08:29:17 PM »
Ok, this is weird.  polished the sear and hammer and now it doesn't do it any more. :?
"I have opinions of my own -- strong opinions -- but I don't always agree with them." - George W. Bush

"I think the definition of soviet optimism is graduating a m44 carbine iron sight to 1000 meters" - bch7773

Kivaari

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Re: Funky Trigger
« Reply #2 on: January 23, 2008, 04:46:50 PM »
 :shock:

With the trigger "pulled" and the bolt out of battery, the trigger bar is "up" above its sear contact.

Closing the bolt slowly may allow the trigger bar enough friction on the front of the sear to move it forward and hold the sear forward long enough for the hammer to clear as the trigger bar passes down via the disconnector.

Closing quickly, the triggger bar blips the sear quickly and the sear returns via the sear spring quickly enough to catch the hammer.

If this is the case, the sear is likely engaged too much. With the safety on, there is contact between the trigger bar and sear.???????????????

Sounds like you removed some amount of material from the front of the sear...????

Without seeing there is no believing....that's my story and I'm stickin' to it... :lol:
kivaari
quality and correctly engaging SKS trigger tune

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bmartens02

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Re: Funky Trigger
« Reply #3 on: January 23, 2008, 05:15:19 PM »
Well, the gun had some shadetree gunsmithing done to it before I got it.  Whoever the previous owner was had re-blued the gun (except for gas tube, mag, and trigger), and had ground down the hammer spring to the point where it wasn't hitting the primers with enough force to set them off  So, I have added a bushing to give the hammer spring more force and replaced the firing pin (there was a Yugo firing pin in the bolt!?).  Now it doesn't slam-fire or mis-fire :) .
I don't have another trigger with me to compare the sears to see how much metal was taken off, but it does look like someone got a little Dremel happy with it.
Why would it stop 'slam-firing' when I polished the hammer & sear though?

On a side note, how bad is it to dry fire an SKS without a snap cap?

Thanks,
-bmartens02
"I have opinions of my own -- strong opinions -- but I don't always agree with them." - George W. Bush

"I think the definition of soviet optimism is graduating a m44 carbine iron sight to 1000 meters" - bch7773

Kivaari

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Re: Funky Trigger
« Reply #4 on: January 24, 2008, 09:56:00 PM »
Well, the "slam fire" may not be firing pin related.

The hammer not catching is said to "follow" the bolt.
kivaari
quality and correctly engaging SKS trigger tune

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Alex Hidell

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Re: Funky Trigger
« Reply #5 on: June 11, 2008, 10:44:54 PM »
When I first got my Chinese SKS, I took it out to shoot. Initially the trigger group worked fine, but then suddenly I'd have to pull further and further back to get it to release--then nothing.  It's like it faded away.  I took it out, fiddled with it, and still couldn't make it work. I tossed all the parts into zip-lock and that was that.

I purchased a replacement trigger group (a Russian) installed it and it worked perfectly. Now I am doing some additional work on my Chinese SKS. I found the old bag of parts, put them back together--and now they work!?  For what reason I don't know. Did I inadvertantly tighten something? A pin or what?

Anyways I hear that the moderator on this subject is the Yoda of SKS trigger groups.

I would like to use the Chinese group because the numbers match the rifle.

Thoughts?!
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Kivaari

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Funky Trigger
« Reply #6 on: June 19, 2008, 11:53:40 PM »
Now that IS weird...

I don't know how far "down" you disassembled the trigger group, but perhaps the pins on the trigger lever and/or trigger bar were put in correctly the second time...
kivaari
quality and correctly engaging SKS trigger tune

SKS....the militia's rifle!

www.kivaari.com

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