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Discussion Starter · #1 ·
This is a century arms WASR-10 (P.O.S.)

Can some one tell me why my bolt carrier keeps getting stuck
behind the hammer when chambering.The problem started after
I altered my trigger for shorter pull (dumb idea) I figured i messed
up the trigger so i ordered a G2 trigger group. After adjusting my
reciever for the extra hook, (double hook was not stated on the site)
and installing the FCG I still have the same problem though not as severe.
To try to remedy the problem I sloped the offending portion of the
hammer from my AMD project and stuck that in there.Great the action
seems to be working pretty smoothly so I take it to the range and
get some pretty bad feeding problems especially chambering the first
round some times the hammer would even be found resting against the
bolt from not cocking all the way I guess.

I have pics of everything if needed

I know only what i have read in these forums and have not seen anything
similar posted in here. Thanks, JW
 

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I'm no expert on AK, but I've made my living troubleshooting things for the past 28 years. Almost invariably, something is overlooked because it seems insignificant. Give all the details you possibly can and someone on this forum is likely to figure out the problem. For instance:

1. How long have you had the gun and how many rounds have been fired through it?
2. Are you using the same ammo you've always used in that gun?
3. Did you recently do anything to the Gas Piston, cleaning, lubricating, etc?
4. Did it always work OK before the FCG mod?
5. Has anything else been changed, recoil spring, top cover, etc?
6. When you put in the new G2 FCG, did you use all of the parts, or mix in some older parts.
7. When you cut the receiver for the double hook, did you remove enough so that the trigger can move completely in both directions.
8. Do you have a recoil buffer installed?

When you cut on the hammer, you may have added another problem. You should put in a complete FCG from one source to minimize compatibility and worn out parts problems.

Good Luck,
 

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FWIW, I just tried a G2 single hook in my SAR-1, also from Century Arms. I noticed that the square hole in the receiver has rounded corners which don't allow the trigger to move freely. When I put this FCG in for actual use, I'll have to use a file and square up the corners of the receiver hole, or round the corner of the trigger.

Hope this helps.
 

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Be sure your axis pin hasn't slipped out of the shepards hook. That would let it ride to high and catch the bolt carrier.
 

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Discussion Starter · #5 ·
bbowling said:
1. How long have you had the gun and how many rounds have been fired through it?
2. Are you using the same ammo you've always used in that gun?
3. Did you recently do anything to the Gas Piston, cleaning, lubricating, etc?
4. Did it always work OK before the FCG mod?
5. Has anything else been changed, recoil spring, top cover, etc?
6. When you put in the new G2 FCG, did you use all of the parts, or mix in some older parts.
7. When you cut the receiver for the double hook, did you remove enough so that the trigger can move completely in both directions.
8. Do you have a recoil buffer installed?

When you cut on the hammer, you may have added another problem. You should put in a complete FCG from one source to minimize compatibility and worn out parts problems.
I've owned this piece for 3 months fired around 1200 rounds through it.
Its always worked fine besides some nasty trigger slap that these are known for.Nothing has been changed besides the fcg, which I installed with all included parts.I gave the trigger enough room to move freely in both directions.Iam using a green black jack buffer but that was in there before
without a problem (every one should get one).I have not tryed firing the rifle with the g2 hammer in it but it doesn't cycle the action smooth at all with it in. Both seers are in place with the shepards hook where it needs to be.
It just looks like the hammer sits up to high,if I lock the hammer down with the disconnector by squeezing the trigger the carrier moves back and forth just fine.

JW
 

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SOunds to me like the hammer "ridge" is too high. People have successfully smoothed this down by using a dremel sanding drum and taking small bits off, checking action, and repeating. Sounds to me like that's the most obvious culprit.

I would remove the buffer in case it causes some interference you don't readily see, and also try hand-cycling the action without the recoil spring to see exactly where it is rubbing.
 

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Discussion Starter · #7 ·
What purpose does this "ridge" have in the action of this?
Why dont they round it off at the factory. It has to be like that for a reason.
It would not cycle while firing when I turned the ridge into a hilltop.
Could my top rails be bent down from misalighning the carrier when placing it in the reciever?
 

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Let's see if I've got the facts right:

One) bolt's stuck behind hammer after altering fire control group

Two) replaced fire control group and altered receiver

Three) bolt's still stuck

Four) replaced hammer and changed face

Five) bolt's stuck, failure to feed, hammer not catching

The problem started after 1200 rounds and you use a buffer.

These problems are consistent with a wallowed out hammer pin hole in the receiver.

The configuration of the hammer and the fire control group changes erratically. I suspect you originally altered the fire control group in response to the change noticed in trigger release.
The configuration of the hammer and bolt carrier also changes.
 

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Discussion Starter · #9 ·
This is all what I modified.
Sorry if these pics are too big I dont know proper size yet
I am not sure how to post images in the thread either

http://www.gunco.net/forums/attachment.php?attachmentid=1158&stc=1

Here are the two hammers on the left the altered, on the right the original

http://www.gunco.net/forums/attachment.php?attachmentid=1157&stc=1
There is no play in the seer pins but alot of play in the bolt and carrier
not sure if more than before but seams very sloppy possible bent carrier?
 

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Discussion Starter · #11 ·
The pictures aren't right to size as they were taken at 2 different zoom levels.
As I said the left is altered the right is the original century arms.
I am going to the range today to see how this red star arms group does .
So far it cycles beautifully.. I'll find out how well it does and post later.
 
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