CEMTE FIRING PROBLEM

[BRENT]

NEED HELP:
TRIED TO FIRE A NEW CENTURY CETME WOULD NOT FIRE?
IT WOULD ONLY CLICK & LEAVE A SMALL INDENT IN SHELL PRIMER
DOES ANYONE KNOW WHATS UP & A SOLUTION?

[RIKA]

Hello Brent, did you get the PM I sent you on 11/14? Your problem can be only one of three things. The firing pin is broken, the hammer spring isn't strong enough to whack the primer or you have grit/debris that is softening the blow and preventing the hammer from strongly contacting the pin. Only other possibility is bad ammo.

RIKA

[Aslan]

If it is a century, odds are that there's a crap load of junk surrounding the firing pin.

It's also likely that the angry beavers at century filed something (to make it fit) and made it out of spec.

If you haven't disassemble and clean thouroughly. Also inspect everything while you're at it for evidence of angry beaver grinding...

[RIKA]

I think Aslan has diagnosed your problem. A big bur or something out of spec is preventing the hammer from making a solid blow to the pin.

to Aslan. Thanks.

RIKA

[Aslan]

I have had to re-engineer a century product or two...

They are hit and miss - you can get a keeper, or a project gun. Totally a roll of the dice.

[eric cartman]

I have one too and I had to change the rollers because they were out of spec, (get the bigger ones).
Fixed the problem right away!

[BRENT]

WOULD IT HELP TO POLISH THE BOLT CARRIER AND INSIDE OF COCKING TUBE?
ALSO SHOULD I USE LIGHT COAT OF OIL OR USE GREASE INSIDE RECIEVER?
YOU WRE CORRECT ON INSIDE FILTH. IT IS EVERYWHERE INSIDE. TRIGGER PACK SEEMS TO FUNTION PROPERLY & HAMMER MAKE GOOD CONTACT ON FIRING PIN.
PIN EXTENDS THRU FINE. ROLLERS APPEAR TO LOCK UP GOOD. THANK FOR THE HELP

[Rich Z]

Seems to me that if the firing pin is protruding through the hole correctly, yet you are still getting light hits on the primer, maybe the bolt isn't going fully into battery.

When you pull back the bolt after a misfire, is the round extracted and pulled out OK?

[GBullet]

Brent, with a loaded magazine in the rifle, point the rifle downward, and pull the charging handle as far to the rear as it will go. Release the charging handle so as to allow it to fly forward unimpeded, striping a round. Try firing the rifle.

CETME and HK roller-locked actions are VERY sensitive to how fast they close. If this still doen't work, the main spring may be weak.

Another possibility is grease or debris ahead of the firing pin, in its tunnel.

[Hard Rock]

First thing is first, don't polish anything!!! You don't jump to conclusions like that.

Here is how you begin to diagnose this problem.

1. Check the head space. with the bolt full closed, put a feeler guage between the bolt and carrier from the bottom of the mag well. The tolorances should be between .020 and .005. If it is outside of these tolorances, there is a problem.

2. Check the hammer spring, if it is the wrong spring, it won't have enough pressure to overcome the firing pin spring. I recommend replacing this part as a matter of course.

3. Make sure the trigger pack is secure in the housing. It may be rotating on the selector switch making it lose energy.

4. Check the ammunition. HK's and Cetme's are not good with hard primers. If it is a hard primer issue, you need to do a few things to make the gun operate properly.

Report back once you've checked the above.

Mike