|
|
#1 |
|
Member
AKaholic #: 34054 Join Date: Feb 2009
Location: Oregon
Posts: 191
|
I need some help diagnosing what's wrong with my PSL build.
I picked up the PSL kit (very, very good) and Romanian receiver (atrocious) from Tennessee Guns during a recent sale. At this point I've got it almost functioning, but I'm running into a few problems. The bolt and carrier will move in the rails... finally... but still seem to hang up about halfway through the cycle. A simple hand whack will free it and it will go into battery just fine. Headspace is fine. Unfortunately this means I don't have a semi-auto PSL at this point. It seems to extract and eject okay, but even when fired hangs up halfway through it's normal traverse. Do I need to do more work on the primary rails? Is this potentially a problem with the bolt rails? Other thoughts? It seems to have the same behavior with and without a magazine, so I don't think the mag has anything to do with it.
__________________
Mike "They that can give up essential liberty to obtain a little temporary safety deserve neither liberty nor safety." - Benjamin Franklin "ΜΟΛΩΝ ΛΑΒΕ" - King Leonidas I of Sparta Visit "Smokeless Powder", my firearms and 2nd Amendment blog: http://fingolfen.blogspot.com |
|
|
|
|
|
#2 |
|
Resident Parts Butcher
Bronze Contributor
AKaholic #: 7569 Join Date: Feb 2007
Location: 100 yards to your right...If you can read this..You're in Range...
Posts: 3,237
|
Do you have the problem with the carrier by itself[bolt removed]?
|
|
|
|
|
|
#3 | |
|
Member
AKaholic #: 34054 Join Date: Feb 2009
Location: Oregon
Posts: 191
|
Quote:
__________________
Mike "They that can give up essential liberty to obtain a little temporary safety deserve neither liberty nor safety." - Benjamin Franklin "ΜΟΛΩΝ ΛΑΒΕ" - King Leonidas I of Sparta Visit "Smokeless Powder", my firearms and 2nd Amendment blog: http://fingolfen.blogspot.com |
|
|
|
|
|
|
#4 |
|
Resident Parts Butcher
Bronze Contributor
AKaholic #: 7569 Join Date: Feb 2007
Location: 100 yards to your right...If you can read this..You're in Range...
Posts: 3,237
|
Then the bolt is hanging up on the ejector...try to carefully pry the receiver open more and see if that helps.
|
|
|
|
|
|
#5 | |
|
Member
AKaholic #: 34054 Join Date: Feb 2009
Location: Oregon
Posts: 191
|
Quote:
__________________
Mike "They that can give up essential liberty to obtain a little temporary safety deserve neither liberty nor safety." - Benjamin Franklin "ΜΟΛΩΝ ΛΑΒΕ" - King Leonidas I of Sparta Visit "Smokeless Powder", my firearms and 2nd Amendment blog: http://fingolfen.blogspot.com |
|
|
|
|
|
|
#6 |
|
Senior Member
AKaholic #: 8425 Join Date: Jun 2007
Location: Houston
Posts: 602
|
Take Sharpie and black the ejector to see if makes contact...any heavy contact will take it right off...
My first thought was the bolt/carrier hanging on the hammer!?!?!? |
|
|
|
|
|
#7 | |
|
Member
AKaholic #: 34054 Join Date: Feb 2009
Location: Oregon
Posts: 191
|
Quote:
__________________
Mike "They that can give up essential liberty to obtain a little temporary safety deserve neither liberty nor safety." - Benjamin Franklin "ΜΟΛΩΝ ΛΑΒΕ" - King Leonidas I of Sparta Visit "Smokeless Powder", my firearms and 2nd Amendment blog: http://fingolfen.blogspot.com |
|
|
|
|
|
|
#8 |
|
Curio & Relic
Bronze Contributor
AKaholic #: 5035 Join Date: Dec 2005
Location: Hilliard, Ohio
Posts: 9,089
|
If you are going to swap FCG's. Be sure to try cyclig the rifle without the FCG in place to either identify that as the issue or to then be able to zero in on the rails and/or ejector for the problem.
|
|
|
|
|
|
#9 | |
|
Resident Parts Butcher
Bronze Contributor
AKaholic #: 7569 Join Date: Feb 2007
Location: 100 yards to your right...If you can read this..You're in Range...
Posts: 3,237
|
Quote:
|
|
|
|
|
|
|
#10 | |
|
Member
AKaholic #: 34054 Join Date: Feb 2009
Location: Oregon
Posts: 191
|
Quote:
One thing I do know, if you have the bolt carrier, but not the bolt, in place, the hammer WILL stop the bolt carrier...
__________________
Mike "They that can give up essential liberty to obtain a little temporary safety deserve neither liberty nor safety." - Benjamin Franklin "ΜΟΛΩΝ ΛΑΒΕ" - King Leonidas I of Sparta Visit "Smokeless Powder", my firearms and 2nd Amendment blog: http://fingolfen.blogspot.com |
|
|
|
|
|
|
#11 |
|
Member
AKaholic #: 3532 Join Date: Feb 2005
Location: Louisville,KY
Posts: 73
|
Hello there:
When I built my PSL the same thing happened. The cure for me was to cut the heel off an old tennis shoe and wedge it in the back of the receiver. Problem solved. It seemed that the bolt carrier was riding back too far and hanging up on the hammer, with the "sole buffer" in place, the carrier can't go that far back and so the rifle cycles as it should! Give it a try, it's E-Zer than messing with the receiver. |
|
|
|
|
|
#12 |
|
Veteran Member
AKaholic #: 5242 Join Date: Jan 2006
Posts: 1,661
|
Im also betting that you are hanging up on the hammer. There is significant drag when you go over it. Try cycling it at full speed with the return spring installed. Should feel a bit different.
BTW, if you decide to replace the FCG, Red Star ARms sells a 2 stage trigger that is %1000 better than stock. It makes a world of difference and is WELL worth the money. |
|
|
|
|
|
#13 | |
|
Member
AKaholic #: 34054 Join Date: Feb 2009
Location: Oregon
Posts: 191
|
Quote:
May end up picking up a couple more. I've got an M76 kit coming in too...
__________________
Mike "They that can give up essential liberty to obtain a little temporary safety deserve neither liberty nor safety." - Benjamin Franklin "ΜΟΛΩΝ ΛΑΒΕ" - King Leonidas I of Sparta Visit "Smokeless Powder", my firearms and 2nd Amendment blog: http://fingolfen.blogspot.com |
|
|
|
|
|
|
#14 |
|
Veteran Member
AKaholic #: 4250 Join Date: Aug 2005
Location: Phoenix (area) AZ
Posts: 1,818
|
try cycling it and hold the trigger back so the disconnector doesn't reset. This will hold the hammer down and reduce the spring presure on the bottom of the bolt carrier. I've also found that a bit of lube on the bottom of the carrier where the hammer slides over will also help diagnose this.
__________________
You can't spell "Slaughter" without "Laughter" The AK47 is a cheap POS designed to be assembled in third world shitholes by a labor force composed of knuckle dragging, booger eating morons. It was then to be handed out to an army of uneducated peasant retards who couldn't find their own ass with both hands and a map. Thats the true genius of the design and why it remains ubiquitous to this day. Gotmine on Barrack Obama: "He is, indeed, a bugger of the third magnitude." |
|
|
|
|
|
#15 | |
|
Member
AKaholic #: 34054 Join Date: Feb 2009
Location: Oregon
Posts: 191
|
Quote:
__________________
Mike "They that can give up essential liberty to obtain a little temporary safety deserve neither liberty nor safety." - Benjamin Franklin "ΜΟΛΩΝ ΛΑΒΕ" - King Leonidas I of Sparta Visit "Smokeless Powder", my firearms and 2nd Amendment blog: http://fingolfen.blogspot.com |
|
|
|
|
|
|
#16 | |
|
Senior Member
AKaholic #: 8425 Join Date: Jun 2007
Location: Houston
Posts: 602
|
Quote:
The Tantal I built a month or so ago on a AKM receiver with AKM FCG the carrier hit the hammer hard and I ground some off the hammer and she runs like a clock now! |
|
|
|
|
|
|
#17 | |
|
Member
AKaholic #: 34054 Join Date: Feb 2009
Location: Oregon
Posts: 191
|
Quote:
__________________
Mike "They that can give up essential liberty to obtain a little temporary safety deserve neither liberty nor safety." - Benjamin Franklin "ΜΟΛΩΝ ΛΑΒΕ" - King Leonidas I of Sparta Visit "Smokeless Powder", my firearms and 2nd Amendment blog: http://fingolfen.blogspot.com |
|
|
|
|
|
|
#18 | |
|
Senior Member
AKaholic #: 8425 Join Date: Jun 2007
Location: Houston
Posts: 602
|
Quote:
OH NO! Sounds like you've got either a mis-matched FCG or the axis pin holes are too are apart...your hammer must be following the carrier back to battery too?!?!?! You did remember to put the spring under the disconnector...right? |
|
|
|
|
|
|
#19 | |
|
Member
AKaholic #: 34054 Join Date: Feb 2009
Location: Oregon
Posts: 191
|
Quote:
The spring is indeed in the disconnector... I'm going to try another FCG to see if it works better - if not, it looks like I'm going to have to bust my parts out of this POS receiver and start over...
__________________
Mike "They that can give up essential liberty to obtain a little temporary safety deserve neither liberty nor safety." - Benjamin Franklin "ΜΟΛΩΝ ΛΑΒΕ" - King Leonidas I of Sparta Visit "Smokeless Powder", my firearms and 2nd Amendment blog: http://fingolfen.blogspot.com |
|
|
|
|
|
|
#20 |
|
Resident Parts Butcher
Bronze Contributor
AKaholic #: 7569 Join Date: Feb 2007
Location: 100 yards to your right...If you can read this..You're in Range...
Posts: 3,237
|
Or is the hammer facing the right direction?
|
|
|
|
|
|
#21 | |
|
Member
AKaholic #: 34054 Join Date: Feb 2009
Location: Oregon
Posts: 191
|
Quote:
__________________
Mike "They that can give up essential liberty to obtain a little temporary safety deserve neither liberty nor safety." - Benjamin Franklin "ΜΟΛΩΝ ΛΑΒΕ" - King Leonidas I of Sparta Visit "Smokeless Powder", my firearms and 2nd Amendment blog: http://fingolfen.blogspot.com |
|
|
|
|
|
|
#22 |
|
Veteran Member
Contributor
AKaholic #: 2434 Join Date: Jun 2004
Location: Sunny Minnesota
Posts: 1,156
|
I've built eight PSL's. Almost all of them had this issue, which typically has more than one cause. I've found that "hammer hang" is almost always a problem, especially with the G2 FCG. In addition, I usually have to grind, polish and otherwise tweak the top rails.
Larry
__________________
For more info see my SKS FAQ: http://www.victorinc.com/SKS-FAQ.html |
|
|
|
|
|
#23 |
|
Veteran Member
Contributor
AKaholic #: 2434 Join Date: Jun 2004
Location: Sunny Minnesota
Posts: 1,156
|
BTW, you'll want to remove the FCG until your sure you're sure the top rails are OK.
Larry
__________________
For more info see my SKS FAQ: http://www.victorinc.com/SKS-FAQ.html |
|
|
|
|
|
#24 |
|
Veteran Member
AKaholic #: 4250 Join Date: Aug 2005
Location: Phoenix (area) AZ
Posts: 1,818
|
If the disconnector isn't grabbing the hammer as the trigger is pulled and the carrier reaches it's maximum rearward travel something is seriously wrong. What reciever did you use? The trigger shouldn't grab anything if you are still holding it back through the cycle. If it is, the hammer should have never dropped in the first place. I used the Centerfire Romanian reciever on my build with the G2 trigger group and had no problems. Seriously, if it's doing what your describing, it's seriously F'ed up.
Make sure it's unloaded. Pull the trigger DO NOT RELEASE IT!!. Cycle the carrier WITH THE TRIGGER STILL PULLED BACK!! As the carrier moves over the hammer, the disconnector should grab the hammer and hold it down. When you release the trigger you should hear a click as the hammer is released by the disconnector and it pops up onto the trigger hook/hooks. This is a basic function check. The trigger hook cannot be grabbing the hammer if the trigger is being held back. IF it is you've got some 5th dimentional stuff going on. The hammer cant drop in the first place if the hooks grab the hammer. Most likely the disconnector spring is missing. Bolt hang up on a new build 8 out of 10 times is simply the new reicever and new trigger group needing a bit of break in time. A bit of lube and a bit of firing should eliminate the problem. It usually doesn't effect funtion if you let the bolt run home like your supposed to on the first round chambers. It rarely effects the function of the gun whilst fireing as your holding the trigger and reducing the effect of the bolt riding on the hammer. I've build close to thirty of em all with G2 triggers on all sorts of recievers and never had a problem with this. Either I'm living right or people are putting too much emphasis on bolt hang up on a brand new build. If it's doing what your saying it's doing, take it to someone who knows what they are doing before you blow yourself up with an out of battery detonation. I have had problems with PSLs not chamber fully because of crappy mags. Check it with several mags so see if this is the case.
__________________
You can't spell "Slaughter" without "Laughter" The AK47 is a cheap POS designed to be assembled in third world shitholes by a labor force composed of knuckle dragging, booger eating morons. It was then to be handed out to an army of uneducated peasant retards who couldn't find their own ass with both hands and a map. Thats the true genius of the design and why it remains ubiquitous to this day. Gotmine on Barrack Obama: "He is, indeed, a bugger of the third magnitude." |
|
|
|
|
|
#25 | |
|
Member
AKaholic #: 34054 Join Date: Feb 2009
Location: Oregon
Posts: 191
|
Quote:
Once I get the carrier to move, it will go into battery just fine - the bolt locks in the lugs nicely, it just hangs after every fire.
__________________
Mike "They that can give up essential liberty to obtain a little temporary safety deserve neither liberty nor safety." - Benjamin Franklin "ΜΟΛΩΝ ΛΑΒΕ" - King Leonidas I of Sparta Visit "Smokeless Powder", my firearms and 2nd Amendment blog: http://fingolfen.blogspot.com |
|
|
|
|
|
|
#26 |
|
Veteran Member
AKaholic #: 4250 Join Date: Aug 2005
Location: Phoenix (area) AZ
Posts: 1,818
|
be careful about cutting on the reciever. The PSL bolts are a bit harder to get in. If you mess with it too much you'll get the bolt to jump out of the rails on the back stroke. Also check several mags. I have one PSL mag that simple will not allow the gun to cycle. It runs fine with other mags. Try chambering a round and then removing the mag before fireing. See how it cycles without a mag in it.
__________________
You can't spell "Slaughter" without "Laughter" The AK47 is a cheap POS designed to be assembled in third world shitholes by a labor force composed of knuckle dragging, booger eating morons. It was then to be handed out to an army of uneducated peasant retards who couldn't find their own ass with both hands and a map. Thats the true genius of the design and why it remains ubiquitous to this day. Gotmine on Barrack Obama: "He is, indeed, a bugger of the third magnitude." |
|
|
|
|
|
#27 | |
|
Veteran Member
Contributor
AKaholic #: 2434 Join Date: Jun 2004
Location: Sunny Minnesota
Posts: 1,156
|
Quote:
That being said, remove the hammer and ensure your bolt carrier cycles freely with the recoil spring installed. Then re-install the hammer and do a basic function check on the FCG. Only then are you ready to address any "hammer drag" issues, provided you even still have any. Larry
__________________
For more info see my SKS FAQ: http://www.victorinc.com/SKS-FAQ.html |
|
|
|
|
|
|
#28 |
|
Member
AKaholic #: 34054 Join Date: Feb 2009
Location: Oregon
Posts: 191
|
Update: I had time to do a fair amount of work on the beast tonight...
Here's what I've found so far. No FCG - bolt and carrier cycle just fine with the recoil spring in place - no hangups. FCG - with the trigger all the way back, the hammer will indeed be captured just fine by the disconnector. Hammer needed major work, however, as it would effectively lock the bolt and carrier back if it wasn't held by the disconnector. I used a U.S. hammer as a guide and reshaped it. Now the thing doesn't lock up anymore. Unfortunately I still get a little hang every time I cycle it at this point with the FCG installed. A light tap will clear it, but I do have to tap it every time. I haven't had a chance to try it with a few rounds as it's dark and rainy here... Thoughts?
__________________
Mike "They that can give up essential liberty to obtain a little temporary safety deserve neither liberty nor safety." - Benjamin Franklin "ΜΟΛΩΝ ΛΑΒΕ" - King Leonidas I of Sparta Visit "Smokeless Powder", my firearms and 2nd Amendment blog: http://fingolfen.blogspot.com |
|
|
|
|
|
#29 |
|
Senior Member
AKaholic #: 11204 Join Date: Feb 2008
Location: Portland Or.
Posts: 805
|
Hey, Mike
I’d like to take a look at it. I’ve carved on a few FCG. I might be talked into taking a drive out your way on Saturday if you’re interested. Elk... |
|
|
|
|
|
#30 | |
|
Member
AKaholic #: 34054 Join Date: Feb 2009
Location: Oregon
Posts: 191
|
Quote:
I think I'm going to be in town on Saturday - what time you going to be in the neighborhood?
__________________
Mike "They that can give up essential liberty to obtain a little temporary safety deserve neither liberty nor safety." - Benjamin Franklin "ΜΟΛΩΝ ΛΑΒΕ" - King Leonidas I of Sparta Visit "Smokeless Powder", my firearms and 2nd Amendment blog: http://fingolfen.blogspot.com |
|
|
|
|
|
|
#31 | |
|
Senior Member
AKaholic #: 11204 Join Date: Feb 2008
Location: Portland Or.
Posts: 805
|
Quote:
|
|
|
|
|
|
|
#32 | |
|
Veteran Member
Contributor
AKaholic #: 2434 Join Date: Jun 2004
Location: Sunny Minnesota
Posts: 1,156
|
Quote:
Larry
__________________
For more info see my SKS FAQ: http://www.victorinc.com/SKS-FAQ.html |
|
|
|
|
|
|
#33 | |
|
Member
AKaholic #: 34054 Join Date: Feb 2009
Location: Oregon
Posts: 191
|
Quote:
__________________
Mike "They that can give up essential liberty to obtain a little temporary safety deserve neither liberty nor safety." - Benjamin Franklin "ΜΟΛΩΝ ΛΑΒΕ" - King Leonidas I of Sparta Visit "Smokeless Powder", my firearms and 2nd Amendment blog: http://fingolfen.blogspot.com |
|
|
|
|
|
|
#34 | |
|
Member
AKaholic #: 34054 Join Date: Feb 2009
Location: Oregon
Posts: 191
|
Quote:
__________________
Mike "They that can give up essential liberty to obtain a little temporary safety deserve neither liberty nor safety." - Benjamin Franklin "ΜΟΛΩΝ ΛΑΒΕ" - King Leonidas I of Sparta Visit "Smokeless Powder", my firearms and 2nd Amendment blog: http://fingolfen.blogspot.com |
|
|
|
|
|
|
#35 | |
|
Senior Member
AKaholic #: 8425 Join Date: Jun 2007
Location: Houston
Posts: 602
|
Quote:
This rifle is a Tantal that a guy talked me into using a AKM receiver and FCG because he said I might have trouble with the Tantal inards, so it was a real mix and match build. But she runs wonderful now, I really was surprised that it "fitted" it's self just by putting some ammo down the pipe. SO...I wouldn't trim any more off the hammer until you've had a chance to ammo though her. |
|
|
|
|
![]() |
| Currently Active Users Viewing This Thread: 1 (0 members and 1 guests) | |
| Thread Tools | |
|
|