Ejection probs

[1st Sgt STRYKR]

Anyone can help. After firing my CETME on the range(over 6,000 rds thru her) one day , my CETME started to fail to eject the spent brass. I thouhgt it might have been the mag. .but not. So i tried firing with out the mag. /the orund came out of the chamber after the bang and fell thru the mag well. I would like to believe its the ejector? But looking for a second opinion.

[Noskov]

I don't own a CETME but 6,000 rounds is a lot of wear and tear on parts, its highly plausible that maybe some stuff has to be replaced. Wish I could offer more help but looking at it from a car standpoint, after so many miles some things will eventually give.

[97th Signalman]

You should retract your bolt and ease it forward to see how high the ejector intrudes into the notch at the bottom of the bolt face. It should be just about at the top of the notch. If not you will have some work to do. the ejector could be worn down at either end.

[SteelCore]

6000rd in one day? Man, that would be 3000bux in todays costs for ammo. I'm jealous.

failure to extract would be dirty flutes, failure to eject could be ejector spring, ejector lever, or ejector pin wear in the trig grp.


BTW, welcome, fellow Hoosier!

[Flesh Thorn]

failure to extract would be dirty flutes
I would recommend a good scrubbing on the chamber and locking recesses and then test firing with the chamber dry and just one or two drops of oil ,not grease, on each roller.

[drine]

Check the gap if you haven't lately. I agree with everyone to scrub it well and lightly lube the rollers. Ejector lever check is in order as explained above and I'll also add to look at the extractor to see that it is not chipped and make sure that it is REALLY tight. You must have tension on any shell via an extractor to get it to properly eject full force. Sounds like Perro's experminet showing a fluted chamber that will extract on its own(he removed the extractor).......but as he showed, it won't eject.
6K rounds is a sizeable amount on any weapon but even more so for our CETMEs cobbled together from mostly used parts.

[el Gaucho]

"Ejection probs"

I used to have those, but I take Viagra now.:eek: :oops:

[weasel_master]

I would also look at your extractor. It may seem like wierd advice since it extracts just fine. The extractor isn't needed to extract the round as much as it is needed to hold the round against the bolt face so the ejector gets a good hit.

[bladeworks123]

If it just suddenly started,,,, that's another reason to be suspicious of the extractor and not the ejector.... check both and you should find your problem. If you need pics, sound off and I'll post you some.

[1st Sgt STRYKR]

oK BLADEWORKS I would appreciate it if you would post some pics. A picture is worth a thousand words. BTW I didnt feed 6 thosand rounds through my girl in on day. That would be the makings of a severe fire fight.

Oh and the piece on the bolt head is called the Ejector ? ? Or the Extractor ? ?
Slightly confused. The expended round comes out of the chamber, but wont throw out, kick out, toss out, Eject eject eject ! !

[bladeworks123]

The ejector is mounted on the left side of the FCG and passes through the center of your bolt head as the bolt comes to the rear. It contacts the case and kicks the spent casing off to the side. The pic shows the ejector at the correct height when the bolt is to the rear and the extractor on the upper left side of the bolt head. If the bolt head extractor is chipped or broken, It will not allow the ejector to kick the spent casing out to one side. Check to be sure your ejector lever is at the same position as the one in the photo with your bolt to the rear. Check to be sure your extractor is all in one piece and holding the spent casing to the bolt head nice and tight.

[bladeworks123]

Here is a little 2 step quick check for the extractor...

[robocop10mm]

To diagnose any problems with a self loading weapon you must understand the 8 step cycle of operation;
1. Feed
2. Chamber
3. Lock
4. Fire
5. Unlock
6. Extract
7. Eject
8. Cock

If there are any problems look at the step BEFORE the symptom. Fail to eject is usually an extraction/extractor problem.

The extractor spring is likely the culprit. After 6K fired through the weapon, it likely needs to be replaced. Check with Fountain Firearms in Houston or robertrtg.com. Not a bad idea to replace the extractor at the same time, they don't cost much. For that matter it is probably time for a complete tune up with a whole new set of springs. You would not expect the shocks and spark plugs to be good after 100,000 miles would you?