G3 Jamming!!!!!!!!!!!!!

Gewehr_3 · 12-05-2005, 10:04 PM

Hi, My g3 is jamming!!!! I fire one round, it ejects, the bolt goes forward then stops 3/4 of the way and the rollers are still out. i have to remove the mag, and then take a screwdriverand pry apart the bolt and bolthead(bolthead is half extended) then i have to re cock and do the same over. CAN ANYONE HELP?!?!?!

sorry i cant explain better but it is pretty complicated

BattleRifleG3 · 12-05-2005, 11:12 PM

Question - did you clean your rifle before firing it? Century Arms at times does a poor job of selling clean rifles, and some have metal shavings in them. Hesse/Vulcan too. If you've shot it a bit the crap may have ended up worked into everything, requiring a more aggressive cleaning. From time to time, you should clean the powder coated surfaces with brake parts cleaner and then oil properly. Wish I could give a firm answer on what the right lube is to use, but I've had varied results with all of the above.

When I say clean aggressively, I mean take everything apart that you can (as long as you know how to do so properly) and scrub with a toothbrush and brake parts cleaner. And wear gloves and safety goggles. That stuff is horrinble on your hands and WILL splash into your eye and make a VERY painful and dangerous experience.

I have to say that the G3 is one WIERD gun, but if cleaned of all unnatural substances will go quite some time without needing to be cleaned, and can be quite accurate compared to other military 7.62 NATO semi autos.

Otter · 12-06-2005, 09:26 AM

Make sure the bolt is assembled correctly, I beleive that if you put the bolt together wrong it will go together but not operate.

"Life is too important to be taken seriously."

Gewehr_3 · 12-07-2005, 01:05 AM

although i do not use break cleaner, i clean my gun aggressively after every shoot and usually every month if i dont go shooting.
i also believe i have my bolt together properly (98%sure)

Big Dog · 12-07-2005, 04:53 AM

The afore-mentioned advice is good - clean, then clean again, then clean a third time!
Use a light lube on the rollers, and see if you can be sue they are round and not worn oblong.
Have you checked the bolt gap? Might need some +2 or +4 rollers, if the ones in there are too worn.
Also, check the cocking tube - does it impede the bolt carrier at all> Sometimes the Century Monkeys weld the tube on crooked.
And check the recoil spring and rod - it too can be crooked and cause binding.

If problems persist, check with the guys over on Gunboards.com's CETME/FR8 forum. They know these rifles inside and out! :nod:

Gewehr_3 · 12-29-2005, 02:21 AM

I got to go shooting and interchange parts with my friend.
It seems to be trouble with the bolt head where i need to pull it forward slightly so the rollers retract fully. it can also be easily moved so sometkhing is wrong

I was looking at http://www.robertrtg.com/g3.html and it said you should be able to fit two pieces of paper in the bolt gap and i cant even fit one. that might be something. Can anyone help me out?? I need new rollers or a whole new bolt head

BattleRifleG3 · 12-29-2005, 06:35 PM

DO NOT interchange bolts with a friend!!! There is a critical dimension called headspacing that has to be precisely set on all but a few rifles. An exception is the AR-15, whose bolts and barrels are dimensioned precisely enough to be interchangeable - we assume.

FutureMarine · 12-30-2005, 01:37 AM

The same thing was true with M14's and M1 Garands. Each bolt was machined to fit that EXACT rifle.

ash · 12-30-2005, 01:42 AM

I had the same problem with a previpously owned G3 clone. I ended up trading it for my carbon 15.

Gewehr_3 · 12-31-2005, 01:07 AM

the guys at cetme rifles said it was a stuck locking lever

WetKnife · 01-23-2006, 11:39 PM

What kind of ammo are you pushing through the rifle. Sometimes its all the ammunition and not the gun. I purchased 100 rounds of Indian 7.62 x 51 and the stuff stunk. Every 4 or so rounds was a jam. Very dirty and not very accurate. My Gun dealer even went out of his way to tell me it was junk. So why did I buy it ! Because it was cheap !
Use good ammo and keep your weapon clean. Other than that maybe swap it with someone who is as good as you in weapons upkeep or better.

grasshopper2 · 02-01-2006, 11:44 AM

Check to see if your trunion is lined up in the receiver? As for the rest of my advice? Clean clean clean. Clean the thing and then hand operate it about 500 to 1000 times. These rifles shoot better the more you use them. They need a brake in period. Clean it 5 times and then clean it again after.

Gewehr_3 · 12-14-2006, 05:16 PM

Not to bring a thread back from the dead or anything, but....
I haven't had much time for shooting in the past 6 months but i finally got back to my g3 and after i replaced the locking lever, cleaned the sh%* out of it with brake cleaner, reassembled the bolt assembly 2 different ways multiple times each, and tried 3 different kinds of ammo...The thing keeps on jamming!!!!!
I don't know what to do, should i try new rollers, i have virtually no bolt gap could this be the problem??

what a waste of money this gun was, i think ill stick to eastern block firearms.
Thanks for your help

Bump

Gewehr_3 · 12-17-2006, 01:25 PM

grasshopper2 · 01-02-2007, 11:37 AM

Did you check to see if you have a broken case in the firing chamber? Look at the fluting? Also, do you have a bent recoil spring? Check that also.
Do not fire indian ammunition. It is dangerous.

just_a_car · 01-02-2007, 09:10 PM

Hey, Gewehr_3, check out my post about my CETME: http://www.gunandgame.com/forums/g3-...-hold-out.html (I couldn't hold out) I think you'll find some good info that may be applicable to your situation.

Good luck, man. I love my CETME, but I want it to work as flawlessly as possible... preferably 100% of the time.

BFRANKlin · 01-05-2007, 09:39 PM

clean the chamber clean the chamber clean the chamber clean the chamber clean the chamber clean the chamber clean the chamber all work and no play make jack a dull boy all work and no play make jack a dull boy all work and no play make jack a dull boy use no grease in the chamber use no grease in the chamber use no grease in the chamber use no grease in the chamber lightly oil the rollers lightly oil the rollers lightly oil the rollers use no grease in the chamber clean the chamber clean the chamber clean the chamber use no grease in the chamber lightly oil the rollers all work and no play make jack a dull boy

12-05-2005, 10:04 PM	#1
Gewehr_3 Member Join Date: Mar 2005 Location: The centre of hickville Iowa Posts: 26 Trader Rating: (0)	G3 Jamming!!!!!!!!!!!!! Hi, My g3 is jamming!!!! I fire one round, it ejects, the bolt goes forward then stops 3/4 of the way and the rollers are still out. i have to remove the mag, and then take a screwdriverand pry apart the bolt and bolthead(bolthead is half extended) then i have to re cock and do the same over. CAN ANYONE HELP?!?!?! sorry i cant explain better but it is pretty complicated __________________ ... What county can preserve its liberties if its rulers are not warned from time to time that this people preserve the spirit of resistance? Let them take arms. The remedy is to set them right as to facts, pardon and pacify them. What signify a few lives lost in a century or two? The tree of liberty must be refreshed from time to time with the blood of patriots and tyrants. It is its natural manure. -Thomas Jefferson 1787

12-05-2005, 11:12 PM	#2
BattleRifleG3 Super Moderator Join Date: Mar 2002 Location: Western PA Posts: 11,401 Trader Rating: (0)	Question - did you clean your rifle before firing it? Century Arms at times does a poor job of selling clean rifles, and some have metal shavings in them. Hesse/Vulcan too. If you've shot it a bit the crap may have ended up worked into everything, requiring a more aggressive cleaning. From time to time, you should clean the powder coated surfaces with brake parts cleaner and then oil properly. Wish I could give a firm answer on what the right lube is to use, but I've had varied results with all of the above. When I say clean aggressively, I mean take everything apart that you can (as long as you know how to do so properly) and scrub with a toothbrush and brake parts cleaner. And wear gloves and safety goggles. That stuff is horrinble on your hands and WILL splash into your eye and make a VERY painful and dangerous experience. I have to say that the G3 is one WIERD gun, but if cleaned of all unnatural substances will go quite some time without needing to be cleaned, and can be quite accurate compared to other military 7.62 NATO semi autos. __________________ Trust is earned, not... GIVEN away. - Worf

12-06-2005, 09:26 AM	#3
Otter Senior Member Join Date: Apr 2005 Location: Vermont Posts: 942 Trader Rating: (0)	Make sure the bolt is assembled correctly, I beleive that if you put the bolt together wrong it will go together but not operate. "Life is too important to be taken seriously." __________________ Life is too important to be taken seriously.

12-07-2005, 01:05 AM	#4
Gewehr_3 Member Join Date: Mar 2005 Location: The centre of hickville Iowa Posts: 26 Trader Rating: (0)	although i do not use break cleaner, i clean my gun aggressively after every shoot and usually every month if i dont go shooting. i also believe i have my bolt together properly (98%sure) __________________ ... What county can preserve its liberties if its rulers are not warned from time to time that this people preserve the spirit of resistance? Let them take arms. The remedy is to set them right as to facts, pardon and pacify them. What signify a few lives lost in a century or two? The tree of liberty must be refreshed from time to time with the blood of patriots and tyrants. It is its natural manure. -Thomas Jefferson 1787

12-07-2005, 04:53 AM	#5
Big Dog Moderator Join Date: Mar 2002 Location: Tallahassee, Florida Posts: 10,071 Trader Rating: (0)	The afore-mentioned advice is good - clean, then clean again, then clean a third time! Use a light lube on the rollers, and see if you can be sue they are round and not worn oblong. Have you checked the bolt gap? Might need some +2 or +4 rollers, if the ones in there are too worn. Also, check the cocking tube - does it impede the bolt carrier at all> Sometimes the Century Monkeys weld the tube on crooked. And check the recoil spring and rod - it too can be crooked and cause binding. If problems persist, check with the guys over on Gunboards.com's CETME/FR8 forum. They know these rifles inside and out! :nod: __________________ Moderator of: AR15/M16, M14/M1A, New/Beginning Shooters and Militaria/Collectables.

12-29-2005, 02:21 AM	#6
Gewehr_3 Member Join Date: Mar 2005 Location: The centre of hickville Iowa Posts: 26 Trader Rating: (0)	I got to go shooting and interchange parts with my friend. It seems to be trouble with the bolt head where i need to pull it forward slightly so the rollers retract fully. it can also be easily moved so sometkhing is wrong I was looking at http://www.robertrtg.com/g3.html and it said you should be able to fit two pieces of paper in the bolt gap and i cant even fit one. that might be something. Can anyone help me out?? I need new rollers or a whole new bolt head __________________ ... What county can preserve its liberties if its rulers are not warned from time to time that this people preserve the spirit of resistance? Let them take arms. The remedy is to set them right as to facts, pardon and pacify them. What signify a few lives lost in a century or two? The tree of liberty must be refreshed from time to time with the blood of patriots and tyrants. It is its natural manure. -Thomas Jefferson 1787

12-29-2005, 06:35 PM	#7
BattleRifleG3 Super Moderator Join Date: Mar 2002 Location: Western PA Posts: 11,401 Trader Rating: (0)	DO NOT interchange bolts with a friend!!! There is a critical dimension called headspacing that has to be precisely set on all but a few rifles. An exception is the AR-15, whose bolts and barrels are dimensioned precisely enough to be interchangeable - we assume. __________________ Trust is earned, not... GIVEN away. - Worf

12-30-2005, 01:37 AM	#8
FutureMarine Senior Member Join Date: Apr 2005 Location: PRK Posts: 1,946 Trader Rating: (0)	The same thing was true with M14's and M1 Garands. Each bolt was machined to fit that EXACT rifle.

12-30-2005, 01:42 AM	#9
ash Senior Member Join Date: Aug 2005 Location: Maryland Posts: 932 Trader Rating: (0)	I had the same problem with a previpously owned G3 clone. I ended up trading it for my carbon 15.

12-31-2005, 01:07 AM	#10
Gewehr_3 Member Join Date: Mar 2005 Location: The centre of hickville Iowa Posts: 26 Trader Rating: (0)	the guys at cetme rifles said it was a stuck locking lever __________________ ... What county can preserve its liberties if its rulers are not warned from time to time that this people preserve the spirit of resistance? Let them take arms. The remedy is to set them right as to facts, pardon and pacify them. What signify a few lives lost in a century or two? The tree of liberty must be refreshed from time to time with the blood of patriots and tyrants. It is its natural manure. -Thomas Jefferson 1787

01-23-2006, 11:39 PM	#11
WetKnife Senior Member Join Date: Aug 2005 Posts: 239 Trader Rating: (0)	What kind of ammo are you pushing through the rifle. Sometimes its all the ammunition and not the gun. I purchased 100 rounds of Indian 7.62 x 51 and the stuff stunk. Every 4 or so rounds was a jam. Very dirty and not very accurate. My Gun dealer even went out of his way to tell me it was junk. So why did I buy it ! Because it was cheap ! Use good ammo and keep your weapon clean. Other than that maybe swap it with someone who is as good as you in weapons upkeep or better.

02-01-2006, 11:44 AM	#12
grasshopper2 Member Join Date: Jun 2005 Posts: 28 Trader Rating: (0)	Check to see if your trunion is lined up in the receiver? As for the rest of my advice? Clean clean clean. Clean the thing and then hand operate it about 500 to 1000 times. These rifles shoot better the more you use them. They need a brake in period. Clean it 5 times and then clean it again after.

12-14-2006, 05:16 PM	#13
Gewehr_3 Member Join Date: Mar 2005 Location: The centre of hickville Iowa Posts: 26 Trader Rating: (0)	Not to bring a thread back from the dead or anything, but.... I haven't had much time for shooting in the past 6 months but i finally got back to my g3 and after i replaced the locking lever, cleaned the sh%* out of it with brake cleaner, reassembled the bolt assembly 2 different ways multiple times each, and tried 3 different kinds of ammo...The thing keeps on jamming!!!!! I don't know what to do, should i try new rollers, i have virtually no bolt gap could this be the problem?? what a waste of money this gun was, i think ill stick to eastern block firearms. Thanks for your help Bump __________________ ... What county can preserve its liberties if its rulers are not warned from time to time that this people preserve the spirit of resistance? Let them take arms. The remedy is to set them right as to facts, pardon and pacify them. What signify a few lives lost in a century or two? The tree of liberty must be refreshed from time to time with the blood of patriots and tyrants. It is its natural manure. -Thomas Jefferson 1787 Last edited by Gewehr_3; 12-15-2006 at 03:40 PM. Reason: Automerged Doublepost

12-17-2006, 01:25 PM	#14
Gewehr_3 Member Join Date: Mar 2005 Location: The centre of hickville Iowa Posts: 26 Trader Rating: (0)	bump __________________ ... What county can preserve its liberties if its rulers are not warned from time to time that this people preserve the spirit of resistance? Let them take arms. The remedy is to set them right as to facts, pardon and pacify them. What signify a few lives lost in a century or two? The tree of liberty must be refreshed from time to time with the blood of patriots and tyrants. It is its natural manure. -Thomas Jefferson 1787

01-02-2007, 11:37 AM	#15
grasshopper2 Member Join Date: Jun 2005 Posts: 28 Trader Rating: (0)	Did you check to see if you have a broken case in the firing chamber? Look at the fluting? Also, do you have a bent recoil spring? Check that also. Do not fire indian ammunition. It is dangerous.

01-02-2007, 09:10 PM	#16
just_a_car Senior Member Join Date: Oct 2006 Location: Edmonds, WA Posts: 3,422 Trader Rating: (0)	Hey, Gewehr_3, check out my post about my CETME: http://www.gunandgame.com/forums/g3-...-hold-out.html (I couldn't hold out) I think you'll find some good info that may be applicable to your situation. Good luck, man. I love my CETME, but I want it to work as flawlessly as possible... preferably 100% of the time.

01-05-2007, 09:39 PM	#17
BFRANKlin Banned Join Date: Dec 2006 Location: Southern Ohio Posts: 258 Trader Rating: (0)	clean the chamber clean the chamber clean the chamber clean the chamber clean the chamber clean the chamber clean the chamber all work and no play make jack a dull boy all work and no play make jack a dull boy all work and no play make jack a dull boy use no grease in the chamber use no grease in the chamber use no grease in the chamber use no grease in the chamber lightly oil the rollers lightly oil the rollers lightly oil the rollers use no grease in the chamber clean the chamber clean the chamber clean the chamber use no grease in the chamber lightly oil the rollers all work and no play make jack a dull boy