Norinco M14 double firing
- Thread starter Dnas17
- Start date
Just clean it really good.The gas system inside the cylinder is to be kept oil and grease free. You can grease up the exterior of the op rod where it passes through the guide and the guide spring though . See if the tail of the gas plug with the flat section is the part thats binding in the rear opening of the gas cylinder as I had one that needed a tiny bit of filing to the cylinder at that point to get the plug to pass through freely.The piston is supposed to drop slowly when the muzzle is lifted . Is the op rod moving all the way back and forth freely with no binding ?
The piston should move freely in the gas cylinder when the gas plug is out. When the plug is in there should be slow movement of the cylinder when the rifle is tilted. This is the cause of your failure to feed.
There is probably gunk in the gas cylinder that is causing the piston to stick. Try cleaning it, degreasing and letting it dry.
There is probably gunk in the gas cylinder that is causing the piston to stick. Try cleaning it, degreasing and letting it dry.
Just ran some solvent through, cleaned it up really well and removed some black nasty gunk.Piston was falling at a slow rate, so may be this whole kanundrum is coming to a close! I think when I first cleaned it up I did make the mistake of putting grease into the gas cylinder and piston area...lesson learned its bone dry now so well see where it goes.
I actually re inspected the gas system, and there still seems to be an issue.
The piston, without the gas plug in will slide back and forth freely in the gas cylinder, passing the "tilt test" in a way however the piston will never come out the back of the cylinder and fall towards the end of the gun. It essentially stops at the point that is in the first picture linked here. Upon inspection of the cylinder there appears to be like a little circular piece of metal that surrounds the interior of the cylinder that is stopping it from moving back but im not sure..
When I put the gas plug in and tighten it all the way down, the cylinder pushes out but will not move at all and is fit in extremely tight like can be seen in the second image. I can loosen the plug so the piston is flush with the opening however the piston will still not move at all and requires to be punched out via hammer and punch.
So...any ideas??
Pics
http://imgur.com/a/gKceJ
The piston, without the gas plug in will slide back and forth freely in the gas cylinder, passing the "tilt test" in a way however the piston will never come out the back of the cylinder and fall towards the end of the gun. It essentially stops at the point that is in the first picture linked here. Upon inspection of the cylinder there appears to be like a little circular piece of metal that surrounds the interior of the cylinder that is stopping it from moving back but im not sure..
When I put the gas plug in and tighten it all the way down, the cylinder pushes out but will not move at all and is fit in extremely tight like can be seen in the second image. I can loosen the plug so the piston is flush with the opening however the piston will still not move at all and requires to be punched out via hammer and punch.
So...any ideas??
Pics
http://imgur.com/a/gKceJ
In the first picture it looks like the piston isn't aligned with the cutout at the bottom of the cylinder. When you put the piston in you may have to drop it down a few times to get the alignment right, but it should fall through that hole BEFORE you ever put the gas plug on. If you were to tighten the gas plug down on the cylinder as it's shown in the first pic you'll force the piston through at an angle and bind it up tight, possibly damaging it or the cylinder in the process.
Seriously, watch this entire video before proceeding further: https://www.youtube.com/watch?v=MzPw9BD56hU
As pop said the piston must be aligned correctly before the gas plug is tightend down . You can take the eraser part of a pencil and turn the piston while its in the cylinder to align it.
On one of mine I had to file the flat section area at the end of the cylinder to remove a tiny bit of material to get my piston to pass the tilt test. The required tight fit of the piston comes from the other end of the piston not the tail .In the pic your cylinder in that area looks a little chewed up .
On one of mine I had to file the flat section area at the end of the cylinder to remove a tiny bit of material to get my piston to pass the tilt test. The required tight fit of the piston comes from the other end of the piston not the tail .In the pic your cylinder in that area looks a little chewed up .
So I guess my best bet right now is to file down that area towards the end?
if your gas system came that way...... why file it? return the rifle. the deeper down the rabbit hole we go, the problems keep popping up, and taking tools and files to parts will void any help your retailer could possibly provide. sometimes a lemon is a lemon?
Dnas, no offence, but did i read that right: you took a hammer and punch to the piston to knock it out?
I'm not sure what the piston is made out of, but I think the metal might be a little soft to use a punch on it. Same for screwing on the gas plug tightly before the stem of the piston is properly sliding through the back if the hole in the cylinder.
Are you sure that you haven't deformed the piston at all?
Can you post a picture of the piston and a view of the gas cylinder by itself from the front and back showing the holes for the piston and its stem?
I'm not sure what the piston is made out of, but I think the metal might be a little soft to use a punch on it. Same for screwing on the gas plug tightly before the stem of the piston is properly sliding through the back if the hole in the cylinder.
Are you sure that you haven't deformed the piston at all?
Can you post a picture of the piston and a view of the gas cylinder by itself from the front and back showing the holes for the piston and its stem?
The piston is fine, its the cylinder that appears to be too small to fit the piston
Could you take some more pics of the front of the cylinder and did it look like that when you got it ? The cylinder in the pic you provided shows a lot of damage to the front of it ?
If it came that way you should definitely take 45 ACP,s advice as I was assuming you had done that to it after not installing the piston correctly and then "via hammer and punch".
If it came that way you should definitely take 45 ACP,s advice as I was assuming you had done that to it after not installing the piston correctly and then "via hammer and punch".
Yours would be the first one. Not saying what you are saying is not true, just never heard this to be a problem with a Norc.
What bothers me the most is that you don't live close to someone who is familiar with the platform.
I'm sure it is a simple fix. Why don't you make a trip to see Niagara Falls and stop in on your way through. Tell the wife its a second honeymoon
What bothers me the most is that you don't live close to someone who is familiar with the platform.
I'm sure it is a simple fix. Why don't you make a trip to see Niagara Falls and stop in on your way through. Tell the wife its a second honeymoon
RememberTheSomme
CGN Ultra frequent flyer
- Location
- Nova Scotia
Good luck Dnas17, stay in there, it will get sorted out. I'm a little confused by some of the explanation of the problem and can't see the pictures so I'm refraining from saying anything and....... there's plenty of help and expertise given here for you already. Don't get frustrated with it, if you can't return for refund or are coming up with a blank from the Smith, we will help you through it here.
Once you get her running, the effort will be worth it trust me.
Visiting Chalkriver, Yomomma, or Tactical teacher would be a big help for your location if you can't solve it yourself through the forums.
Once you get her running, the effort will be worth it trust me.
Visiting Chalkriver, Yomomma, or Tactical teacher would be a big help for your location if you can't solve it yourself through the forums.I'm just gonna summarize this since I feel the combination of my noobness and bad luck in acquiring this lemon is starting to irritate some, but basically great gunsmith guy fixed up that gas chamber and piston and now its correctly passing that tilt test. Live fire test to follow... fingers freaking crossed.
