sigh...AK problems..light primer strike, trigger not resetting.

[jingerale]

So finally went to he range to test out the AK, problems all day.

First there's the light strike issue. never an issue with the first round, that always goes off. On the 2nd round, press trigger, "click". Eject the round and the primer clearly has been struck. 3rd goes off, same issue with 4th round.

Once awhile, I don't eject the unfired round, I rack to reset the trigger and the same round goes into the chamber, it will go off the second time.

And once a while, after a successful firing of a round, the trigger does not reset. The action is pretty smooth if I rack it back and forth. But sometimes if I don't rack the charge handle really hard, and release it slowly, the bolt would get stuck, on what looks to be where the hammer is.

So my first thought was the disconnect spring, usually if your trigger doesn't reset, you forgot it. Well, I didn't, it's in there.

Romanian kit with Tapco single hook trigger.

Any ideas on what I should check next?

Thanks

[69Mach1]

Thoroughly clean the bolt and it's firing pin and channel.


Original barrel kit? More info on your kit and the way it was built.

[jingerale]

Thoroughly clean the bolt and it's firing pin and channel.


Original barrel kit? More info on your kit and the way it was built.

AK-Builder kit, with new US barrel. Built it at a local build party. Everything looked good at the party.

I will try cleaning the bolt and firing pin when i get home.

[4thSBCT]

With out seeing the rifle, walking hammer springs might be your issue. sometimes these guys can slide inward cuaseing the problem you describe. Try dry firing a few times with your dust cover off and watch to see if one of the legs starts to creep inwards.

[Gowking]

The right hammer spring leg can also be pushed off the trigger by the selector lever when it is installed.

-MRA

[1lowluv]

I had the same problem, I forgot to put the Disconector spring in.

[jingerale]

The right hammer spring leg can also be pushed off the trigger by the selector lever when it is installed.

-MRA

both spring legs are definitely where they should be. I will try dry firing tonight after cleaning to see if they move.

I had the same problem, I forgot to put the Disconector spring in.

first thing i checked. spring's in.

[nicoroshi]

Please take a picture of the FCG from the top with bolt, carrier, and recoil spring removed.
Sounds almost like the hammer could be binding between the interior rails, is 'cock-eyed' in the receiver or retaining plate is not in the hammer axis pin notch allowing the hammer axis pin to be slightly out (making it out of line with where it should be).

Question:
On drilling, and reaming your FCG holes did you drill once through the receiver, de-burr the interior, weld rails in, drill again, and do final de-burr on the interior or did you just weld the rails in, and drill/ ream through receiver, and interior rials at once?

Reason I ask is I have seen a burr between the interior of the receiver, and the back side of the interior rail push the interior rail far enough to the inside of the receiver to bind the hammer.

[jingerale]

Please take a picture of the FCG from the top with bolt, carrier, and recoil spring removed.
Sounds almost like the hammer could be binding between the interior rails, is 'cock-eyed' in the receiver or retaining plate is not in the hammer axis pin notch allowing the hammer axis pin to be slightly out (making it out of line with where it should be).

Question:
On drilling, and reaming your FCG holes did you drill once through the receiver, de-burr the interior, weld rails in, drill again, and do final de-burr on the interior or did you just weld the rails in, and drill/ ream through receiver, and interior rials at once?

Reason I ask is I have seen a burr between the interior of the receiver, and the back side of the interior rail push the interior rail far enough to the inside of the receiver to bind the hammer.

Will take pics tonight.

I do believe we spot welded the rails in, then drilled the holes. Heat threat then ream.

[backstrap]

Im gonna vote hammer hitting a rail. See if you can use your fingers to push the hammer down while wiggling it back and forth towards both rails also do it while coming up. If the hammer has enough play to hit the rails thats prolly whats happening. No mods to the trigger? Like a modified double hook?

Also youre sure the trigger is reset after you shoot? The only thing thats really changing is the speed and distance your BCG is coming back, between pulling the carrier back manually.

[jingerale]

Im gonna vote hammer hitting a rail. See if you can use your fingers to push the hammer down while wiggling it back and forth towards both rails also do it while coming up. If the hammer has enough play to hit the rails thats prolly whats happening. No mods to the trigger? Like a modified double hook?

Also youre sure the trigger is reset after you shoot? The only thing thats really changing is the speed and distance your BCG is coming back, between pulling the carrier back manually.

will try when I get home.

no mods to the trigger, single hook from AK-Builder. Other than the times that it did not reset, I'm assuming it did since something dented the primer. I mean, I hear/feel the hammer drop vs. nothing at all when it did not reset.

[TS77]

Have you tried replacing the hammer spring?

[jingerale]

Have you tried replacing the hammer spring?

nope, hoping to try all the possible free solutions before replacing any parts.

[jingerale]

Im gonna vote hammer hitting a rail. See if you can use your fingers to push the hammer down while wiggling it back and forth towards both rails also do it while coming up. If the hammer has enough play to hit the rails thats prolly whats happening. No mods to the trigger? Like a modified double hook?

Also youre sure the trigger is reset after you shoot? The only thing thats really changing is the speed and distance your BCG is coming back, between pulling the carrier back manually.

Well, I tried moving the hammer side to side going up and down, there's barely any movement. No where near the rails.

Here's a pic.


I have the Bolt sitting in a pool of Acetone. Going to clean it up a bit.

[backstrap]

There should be 4 complete spring coils on your hammer then the legs come under and over trigger. Your spring doesnt look like it has the tension it should. Watch a video on youtube and make sure your hammer and spring are installed correctly. It really looks like you need to wrap the spring one more time. When it has the correct tension it will smack your finger and dig in when you try to install it. if your bleeding its good. If thats good I would look at the recoil spring, theres not a ton of clearance over the hammer and as nico said if ur 7mm holes are off and high a 16th of an inch youre close to hitting the recoil spring.