PDA

View Full Version : K9 Erratic Ejection Problem



Batman16
04-18-2014, 01:54 PM
I just picked up a 2006 era K9 second hand. Previous owner claimed it only had 400 rounds through it. I've shot 200 rounds through it and I'm getting very erratic ejection patterns. 50-60% of the ejections are normal (3-5 o'clock) but the rest are all over the place - vertical, left shoulder, right shoulder, forehead, top of head, etc. Tried different shooter and ammo with same results. Gun seems to function fine and very accurate. Spring "feels" normal for round count and extractor looks fine. Most Expended Cases are dented at the top but I believe that is normal.

I'm just looking for advice on how to fix this issue - more of a nuisance than anything but none of my other guns have such erratic patterns. I'm wondering if there is a larger problem brewing. I have a PM9 so I'm not new to Kahrs.

I could order new spring, extractor for about $30 and see if that helps. I called Kahr - they were no help but did offer to look at it. I just don't want to pay the $90 for shipping if I can fix myself.

Any help would be appreciated - thx!

DavidR
04-18-2014, 05:57 PM
Hang on, the knowledgeable guys will be along soon to offer advice.

jocko
04-18-2014, 06:50 PM
get a new set of recoils springs from wolffs gunsprings buy the 20# factory spring and then buy the 22# factory spring and try um both. . I Bet this willget u going alot better. It is not gonna thrown them in a bucket every time either. If the gun is funtioning fine, then IMO, if it ain't broke don't fix it. U can also take off about .020 off the end of the extractor pin (the long one) and callit tensioning, This will also help, but first go with recoil spring change.

. 400 round 4000 round 40,000 rounds, the K9 will show no more wear at any stage there, but The recoil springs being 8 years old could definitely be in need of replacement.

Certainly not worth sending it back to kahr IMO. Do the above and then IMO Live with it. Hellmy G19 bonked me on the head alot, and I attributed alot of that to my grip to kand being a lefty the brass was closer to my precious head anyway. It did not effect my mental capabilites. I am still as sharp as a tack and twice as smart as Muggsy ever dreamed of bein..

different ammo will also throw differently due to and unknown of what is in the loaded rounds.

whew when I first read the post, my eyes were tired and I thought he was talking about an eratic erection. I though wow, this forum has really changed alot. but I stand corrected. I was starting to box up a jar of jocko's ejockulation bait for this guy even. I always try to help a new guy get settle don this forum, for we do havbe some pretty fokking weird guys oh this forum. Just sayin:amflag:

Batman16
04-18-2014, 07:22 PM
Thx for the advice and maybe I will think twice about wording next time!

jocko
04-18-2014, 07:26 PM
Thx for the advice and maybe I will think twice about wording next time!

JUST TYPE BIGGER LETTERS:amflag::amflag:

b4uqzme
04-18-2014, 09:39 PM
:) leave it to Ol Jocko to complain about somebody else's typing. Irony. ;)

Batman16
04-18-2014, 09:51 PM
Springs on order! Two more questions if anyone has time. I was looking at the ejector and comparing it to my PM9. I noticed two things different. First, the K9s ejector is straight and blunt at the end while the PM9s slopes down towards the tip. Probably just the way it was designed. Secondly, with the slide off, the K9s ejector is a little loose. It moves just a little while the PM9s ejector is rock solid. Any idea if the ejector being slightly loose could cause a problem? I would appreciate it if some could break down their K9 and take a look...

berettabone
04-19-2014, 08:16 AM
Some people's ejectors are straight and blunt, others slope towards the tip.............it's natures way.........................................

Skybull
04-19-2014, 08:50 AM
Just tore down my early K9. The ejector is blunt on the end and rock solid. Doesn't move a bit.
When I first got my K9 , I noticed that my trigger spring was too long and it extended up and rubbed on the barrel. I trimmed it back some and all is well. Might want to check that too as it could create sporadic drag.

Batman16
04-19-2014, 09:50 AM
Thx for the reply. I have gotten responses also that a little movement in the ejector is OK. So I'm still not sure if it is an issue. I guess I will give Kahr a call again and see if there is a definitive answer.

I'm also noticing a lot of brass dings on the left side of slide ejection port. Any ideas on that?

Batman16
04-19-2014, 11:09 AM
OK - the more I check out the gun and research problems I'm lost on what could be the problem. I do not have enough knowledge to understand what is happening during the extraction process. I need an expert to weigh in on this. So far:
1. Erratic ejection 50% of the time
2. Cases dented or crimped at mouth - obviously hitting something. Not all cases but most. I have not correlated damaged cases to erratic ejection yet.
3. Many brass dings on left side of slide at ejection port. Looks like brass is bouncing off slide.
4. Ejector has a little play in it but based on other posts probably not a problem

Any ideas? I'm concerned about all the bent case mouths and dings on left slide.http://img.tapatalk.com/d/14/04/20/8a7ejuze.jpg

texjack
04-19-2014, 06:05 PM
The infamous Kahr dent. All my Kahrs make that same dent on all brass. They hit the ejection port, causing erratic ejection. Mine have never had a malfunction. I say stop worrying and start shooting!

Batman16
04-19-2014, 07:44 PM
The infamous Kahr dent. All my Kahrs make that same dent on all brass. They hit the ejection port, causing erratic ejection. Mine have never had a malfunction. I say stop worrying and start shooting!


OK but my PM9 does not have any of these issues - is the "Kahr dent" model specific?

Skybull
04-20-2014, 08:14 AM
My recently shot K9 has the identical dent on each fired case. The recoil spring was also just replaced for what its worth.

Batman16
04-20-2014, 11:56 PM
Thanks for all the tips - I did not realize the D shaped case was mentioned in Kahr manuals. I guess I just got lucky with my PM9. I just wish the K9 ejected cases were not so erratic. Everything else about the gun is awesome!

Batman16
04-27-2014, 10:43 AM
I got my new recoil spring and striker spring from Wolff. Tore the slide down and it was a dirty mess. Cleaned it up and installed new springs. Slide and trigger seem to be running better. Gun looked to be in good shape except for the striker block. At the base where it sits in slide the coating or plating was peeling off. Anyone seen that and is it normal?

Tinman507
04-27-2014, 10:45 AM
Got a photo of what you're describing? Not sure there's any coating or plating there, but I am confused on the location.

Batman16
04-27-2014, 11:44 AM
I don't want to pull the slide apart again for a photo - sorry. Best description: striker block has a spring at the bottom where it sits in the slide. The base of the striker block (closest to spring) has some flaking or peeling of the metal on the sides of the block when I took it out and cleaned it. It was definitely the striker block - I could use my nail and peel it off. I cleaned off the peeling and replaced. I'm not sure if that part is nickel coated or what. The places where the metal flaked was dull while the other parts are shiny. The peeling only occurred at base and on sides where it sits all the way into the slide - probably 1/8 inch from from base of spring. I am just wondering if it is a problem. I would not think that would affect the structural integrity of the part but I do not know that much about metals. I will see if I can get pic off internet.

Batman16
04-27-2014, 11:49 AM
Here is pic. You can see hole where spring fits. So the sides closest to spring are where Flaking or peeling occurred.http://img.tapatalk.com/d/14/04/28/ysegaru9.jpg

Tinman507
04-27-2014, 06:14 PM
Understood. Give Kahr a heads up on this and see if they'll ship you a new one. If it was plated and is flaking off, it's not right. Won't affect function, but still not right.

CJB
04-27-2014, 08:00 PM
Just my two cents.... but I have found on both of PM45's, one new one almost new when I got it, that forehead ejection went away with - high powered ammo, as opposed to WWB and PMC stuff. And, once shot a bunch, ejection smoothed out to a nice 3-5 as you say.

muggsy
04-28-2014, 08:28 AM
I'm not a gunsmith, but I do play one on this forum. First the dented case mouth isn't a problem. The brass is hitting the ejection port on the way out and that is a normal situation in Kahr Pistols. You may have an extractor that is a little on the tight side and the thickness of case rims can also vary. This can cause erratic ejection. A loose or damaged ejector can also cause erratic ejection. The quality of the ammo can cause erratic ejection and how you grip the pistol can cause erratic ejection. I may not have pin pointed your problem, but I gave you a few direction in which to go. Happy hunting.

Batman16
04-28-2014, 08:30 AM
I appreciate the feedback thanks!

Batman16
04-28-2014, 12:03 PM
Nice chat with Kahr today regarding ejector and striker block. It is normal for ejector to have a little play in it and it does vary from model to model. They also said it is normal for the striker block coating to wear off - no issues with integrity. I had a lot fun breaking down and researching this K9 and I have learned a lot. Case closed - thx for your replies!

jocko
04-28-2014, 04:46 PM
no doubt ammo plays a big part of what the ejection distance and area is gonna be. The hotter the round the further the casing should fly and more than likely it will fly away from you. I can't remember ever getting bonked on the head with my G9 with hot ammo but with range fodder It was common enough, but fgor me I think being a lefty changed the area and moved me closer to the ejection area of the casing..
Ammo, grip, etc all play a part. The ejectors on the polymer series I have yet to find one that din't move a tad bit. I see no issue there either.

muggsy
04-29-2014, 08:10 PM
I just picked up a 2006 era K9 second hand. Previous owner claimed it only had 400 rounds through it. I've shot 200 rounds through it and I'm getting very erratic ejection patterns. 50-60% of the ejections are normal (3-5 o'clock) but the rest are all over the place - vertical, left shoulder, right shoulder, forehead, top of head, etc. Tried different shooter and ammo with same results. Gun seems to function fine and very accurate. Spring "feels" normal for round count and extractor looks fine. Most Expended Cases are dented at the top but I believe that is normal.

I'm just looking for advice on how to fix this issue - more of a nuisance than anything but none of my other guns have such erratic patterns. I'm wondering if there is a larger problem brewing. I have a PM9 so I'm not new to Kahrs.

I could order new spring, extractor for about $30 and see if that helps. I called Kahr - they were no help but did offer to look at it. I just don't want to pay the $90 for shipping if I can fix myself.

Any help would be appreciated - thx!

If all else fails you can ask Kahr to send you a prepaid mailing label via e-mail. Failing that your local FFL can ship it back to Kahr for a lot less than you can. Usually erratic ejection can be traced to an extractor or ejector problem. The dented case mouth is normal.

Batman16
04-29-2014, 08:46 PM
Interesting...I did not even think about that. I thought their warranty was only five years. I had to convince them to give me a prepaid label for my PM9 but that was still under the five-year limit. Have you had experience with Kahr sending prepaid labels for guns out of warranty?

muggsy
05-01-2014, 10:18 AM
Interesting...I did not even think about that. I thought their warranty was only five years. I had to convince them to give me a prepaid label for my PM9 but that was still under the five-year limit. Have you had experience with Kahr sending prepaid labels for guns out of warranty?

My only experience with the service dept was for a bad frame on my P380. Kahr e-mailed a printable prepaid mailing label and covered shipping costs both ways. The frame was replaced and the gun repaired to my satisfaction.

Batman16
05-04-2014, 09:06 PM
New springs and good cleaning really helped with consistency of ejected brass. Nice gun now!