PDA

View Full Version : Thanks, and help, please!



onemule
09-20-2013, 11:31 PM
Thanks to all who answered my questions about Kahrs and steered me toward the CM40. I picked one up today at a local (nearest one is close to an hour away) gun store that I ordered from Davidson's/GalleryOfGuns.com. Delivery and all went smoothly, but the trigger has an annoying skritching sound (sort of like a cricket at low temperatures). I can also feel the vibration with my trigger finger. It starts about a quarter inch into the pull and continues to the end. Is this normal for Kahrs?

I have the impression there's a loose spring end scratching against polymer somewhere, but I don't see anything. This is not the smooth pull I was expecting from a Kahr, based on a CW45, a CW40, and a PM9 I tried. Instead the pull is jerky. Any suggestions on what to do about this, or do I just need to send it back to Davidson's for an exchange? Other than this problem, it seems like a really neat little weapon.

chrish
09-21-2013, 12:26 AM
Not a gunsmith, but no, I agree with your assessment that what you are feeling isn't normal for a Kahr trigger. I'm sure a couple of folks will jump in here with some thoughts on specifically what's wrong. Don't know that I've heard anyone describe anything like that on a Kahr before. Once identified, I'm betting it'll be one of those 'you are the lucky 1 person that got a gun that slipped thru the crack'. Sounds minor though.

onemule
09-21-2013, 12:31 AM
Well, after closer inspection, I think I've found the problem. About an inch and a half from the forward end of the trigger bar, there's a spring that apparently holds the trigger bar in place. As the trigger is operated, the bar slides forward across a crook in the spring. Even with my poor eyesight, I can see that the trigger bar has a rough edge where it was stamped out and that edge comes in contact with the spring. As the trigger bar rides forward over the spring, I can watch the spring jerk back and forth.

Considering what a significant effect this has on the quality of the trigger pull, I would have expected Kahr to do something to smooth that edge of the trigger bar to prevent the jerky motion along the spring, even in a less expensive gun. I figure what is needed is to lightly stone the edge of the trigger bar where it contacts the spring. It appears those components can be accessed via a panel in the right hand side of the frame. Would I void any warrantees or suffer extreme reassembly frustration if I pulled it apart and smoothed up that trigger bar?

Eventually either the trigger bar or the spring will have to wear down, I expect, and most likely the trigger bar is the softer material. But in the meantime, the jerk in the trigger is unacceptable. I'll have to admit I'm disappointed in this quality issue. Everything I've read or heard indicated the machining quality was as good in the CM pistols as in the PM ones. But I can't imagine anyone would willingly buy a pistol for as much as I paid for the CM with this kind of a problem, much less what a PM costs. Hmmm. I hope this is an exceptional situation and the CM's and PM's don't normally have this issue. Anyone else experience this problem?

zamboni
09-21-2013, 12:44 AM
I would shoot it before you worry too much about it. My trigger pull is no where near as smooth while dry firing.

Xdmac45
09-21-2013, 01:10 AM
My new cw9 is the same way ,but after I put a dab of mil comm 25b on it I don't notice it at all after 250 rounds .

yqtszhj
09-21-2013, 02:37 AM
I have a CW45 that was a little rough on the trigger bar when I got it. I fixed mine myself. Like Xdmac said it should smooth out really nice on it's own through breakin but if you want to remove the cover and smooth it out it shouldn't hurt anything. There might be some little plastic booger behind that panel also causing it to be rough.

If you do remove the cover make sure not to tighten it up too much when you go to reinstall the screw for the side cover since it screws into the polymer.

You may want to shoot it first to make sure all is good with the gun and trigger otherwise and if there is any other problem just let kahr know and they will make it right. In the end you'll be glad that you got the Kahr.

Let us know if you have any other problems.

jocko
09-21-2013, 06:38 AM
Well, after closer inspection, I think I've found the problem. About an inch and a half from the forward end of the trigger bar, there's a spring that apparently holds the trigger bar in place. As the trigger is operated, the bar slides forward across a crook in the spring. Even with my poor eyesight, I can see that the trigger bar has a rough edge where it was stamped out and that edge comes in contact with the spring. As the trigger bar rides forward over the spring, I can watch the spring jerk back and forth.

Considering what a significant effect this has on the quality of the trigger pull, I would have expected Kahr to do something to smooth that edge of the trigger bar to prevent the jerky motion along the spring, even in a less expensive gun. I figure what is needed is to lightly stone the edge of the trigger bar where it contacts the spring. It appears those components can be accessed via a panel in the right hand side of the frame. Would I void any warrantees or suffer extreme reassembly frustration if I pulled it apart and smoothed up that trigger bar?

Eventually either the trigger bar or the spring will have to wear down, I expect, and most likely the trigger bar is the softer material. But in the meantime, the jerk in the trigger is unacceptable. I'll have to admit I'm disappointed in this quality issue. Everything I've read or heard indicated the machining quality was as good in the CM pistols as in the PM ones. But I can't imagine anyone would willingly buy a pistol for as much as I paid for the CM with this kind of a problem, much less what a PM costs. Hmmm. I hope this is an exceptional situation and the CM's and PM's don't normally have this issue. Anyone else experience this problem?

dab of gun grease where that spring is mking contact with that trigger ar. It willsoon go away with rounds down range, or u can smooth it out urself with some fine 600 grit paper. alittle more work to do. Give the gun some rounds and it will sork itself out. The world ain't perfect u know.:Amflag2:

mikemc53
09-21-2013, 08:13 AM
My CM9 was (and still is) smooth as a baby's behind, right out of the box.

onemule
09-21-2013, 09:58 AM
I have a CW45 that was a little rough on the trigger bar when I got it. I fixed mine myself.

How did you go about fixing it? Did you disassemble it? Any trouble reassembling it, other than to be careful not to over tighten the screw? I am basically mistrustful of springs. I have not had a close enough look at a CW45 to know whether it has the same cover and basic design in that trigger bar area.


Like Xdmac said it should smooth out really nice on it's own through breakin

I've been working the trigger (mostly uncocked and definitely unloaded) to see if it would smooth down, but so far no apparent change. I'm not sure how firing the gun would make that particular area smooth out any faster than just working the trigger this way. I plan to cycle the trigger another couple hundred times today to see if that makes a difference. I think that should have about the same effect as shooting a couple hundred rounds for break-in.


If you do remove the cover make sure not to tighten it up too much when you go to reinstall the screw for the side cover since it screws into the polymer.

Yeah, I was thinking about that as I pondered taking the cover off. Does the screw seem to be just snugged up moderately in the polymer, or will it want a little loc-tite on it? I'm pretty careful about tightening screws in soft materials.


You may want to shoot it first to make sure all is good with the gun and trigger otherwise

I've been exercising extreme patience to wait to see what your responses would be before shooting it. If you guys think the problem is worth a return for replacement, I would want to do that before firing it. But if I can eliminate the problem myself without voiding warranties, I'll give it a go. As rough as this trigger is, I would rather send the gun back and spend the extra money to buy a PM40 if that is what it takes to get a smooth trigger. The jerk in the trigger in this one is really bad as it stands right now.


if there is any other problem just let kahr know and they will make it right. In the end you'll be glad that you got the Kahr.

I'm glad Kahr has that kind of reputation. Based on the responses so far, I have emailed Kahr customer support a description of the problem and asked for their advice. Unfortunately, they probably won't see the message before Monday at the earliest.

Other than the trigger jerk, I really like the gun so far. I look forward to shooting it at some point. First I will reread the manual, clean and oil the gun and do the safety checks. It had so much oil on it out of the box, I got the impression they had dunked the gun in a vat of oil and hung it up to drain a little before shipping it. Not likely to have a rust problem that way, I guess, but I've never seen a new gun come that soaked in oil.


Let us know if you have any other problems.

I will definitely do that, thanks. I really appreciate this forum and community, especially the courtesy with which people seem to treat each other on here. To my mind, people who carry lethal force should be polite people, restrained in their responses to others no matter how dumb or irritating someone might seem. Reasoned and spirited disagreement is fine, but when I see people flaming each other on a gun forum, I really wonder whether they should be carrying. So, I appreciate the attitude I see on this forum.

Thanks for your responses, everyone!

onemule
09-21-2013, 10:06 AM
My new cw9 is the same way ,but after I put a dab of mil comm 25b on it I don't notice it at all after 250 rounds .

Is this the product you're referring to? I'm not familiar with it.

http://www.mil-comm.com/index.php?option=com_content&task=view&id=46&Itemid=

Bawanna
09-21-2013, 10:56 AM
That's it but you can get it at Brownells or Midway and such. Looks like you have to buy 5 minimum if you get it direct.

Jocko used to say he got a pair of syringes each time but I've never seen it sold like that. It last a long time but I'd buy two next time. I'm out as we speak.

Dry firing/working that trigger will be just as effective with your issue. I'd pull the side plate and try to smooth it out in place.

NO loctite on the screw. It doesn't work on polymer anyhow and isn't needed.

jocko
09-21-2013, 11:15 AM
01. TW25B grease 0.5 oz reclosable syringe

its on their webb site $10.95

b4uqzme
09-21-2013, 11:36 AM
I know a few trigger jerks. Sorry couldn't pass that one up. :cool:

onemule
09-21-2013, 05:31 PM
I know a few trigger jerks. Sorry couldn't pass that one up. :cool:

Guess I'll have to forgive you, but only because you have a guitar in your photo. :)

yqtszhj
09-21-2013, 09:04 PM
How did you go about fixing it? Did you disassemble it? Any trouble reassembling it, other than to be careful not to over tighten the screw? I am basically mistrustful of springs. I have not had a close enough look at a CW45 to know whether it has the same cover and basic design in that trigger bar area.



I've been working the trigger (mostly uncocked and definitely unloaded) to see if it would smooth down, but so far no apparent change. I'm not sure how firing the gun would make that particular area smooth out any faster than just working the trigger this way. I plan to cycle the trigger another couple hundred times today to see if that makes a difference. I think that should have about the same effect as shooting a couple hundred rounds for break-in.



Yeah, I was thinking about that as I pondered taking the cover off. Does the screw seem to be just snugged up moderately in the polymer, or will it want a little loc-tite on it? I'm pretty careful about tightening screws in soft materials.



I've been exercising extreme patience to wait to see what your responses would be before shooting it. If you guys think the problem is worth a return for replacement, I would want to do that before firing it. But if I can eliminate the problem myself without voiding warranties, I'll give it a go. As rough as this trigger is, I would rather send the gun back and spend the extra money to buy a PM40 if that is what it takes to get a smooth trigger. The jerk in the trigger in this one is really bad as it stands right now.



I'm glad Kahr has that kind of reputation. Based on the responses so far, I have emailed Kahr customer support a description of the problem and asked for their advice. Unfortunately, they probably won't see the message before Monday at the earliest.

Other than the trigger jerk, I really like the gun so far. I look forward to shooting it at some point. First I will reread the manual, clean and oil the gun and do the safety checks. It had so much oil on it out of the box, I got the impression they had dunked the gun in a vat of oil and hung it up to drain a little before shipping it. Not likely to have a rust problem that way, I guess, but I've never seen a new gun come that soaked in oil.



I will definitely do that, thanks. I really appreciate this forum and community, especially the courtesy with which people seem to treat each other on here. To my mind, people who carry lethal force should be polite people, restrained in their responses to others no matter how dumb or irritating someone might seem. Reasoned and spirited disagreement is fine, but when I see people flaming each other on a gun forum, I really wonder whether they should be carrying. So, I appreciate the attitude I see on this forum.

Thanks for your responses, everyone!

If you gently get the little cover off there is only one spring behind there so it's not too bad. You can smooth it then. I pulled the whole trigger, trigger bar, and assembly out of mine, I wouldn't recommend that. It would be going off the deep end (but I do that at times.)

Work the trigger cocked, it puts more pressure on the internals and smoothes faster in my opinion since it moves cocking cam and everything else.

Go shoot the gun and enjoy it. All that banging and clanging that happens with a live round really knocks the rough edges off the gun (and possibly your nerves too :) )

WLEEP
09-21-2013, 10:27 PM
I've been exercising extreme patience to wait to see what your responses would be before shooting it. If you guys think the problem is worth a return for replacement, I would want to do that before firing it. But if I can eliminate the problem myself without voiding warranties, I'll give it a go. As rough as this trigger is, I would rather send the gun back and spend the extra money to buy a PM40 if that is what it takes to get a smooth trigger. The jerk in the trigger in this one is really bad as it stands right now.

Well, since Kahr recommends a break in period, I don't think you would go wrong by putting a couple of hundred rounds thru it. Personally, I'd at least try that. I'm not sure gunsmithing 101 is the way to go on a brand new gun. I'm sure Kahr will make this right for you.

But, I'm sorry you're experiencing this issue right out of the box, very frustrating and all the more reason for Kahr to jump all over the problem.

WLEEP
09-21-2013, 10:33 PM
And this from BUCKSHOTSHORTY on another thread:

Glad it worked out for you, and thanks for the update. Kahr's warranty service is very good. I had a problem early on with my CM9 and they fixed it and sent it and sent it back in 8 days. Haven't had a problem since.

Xdmac45
09-21-2013, 10:40 PM
Yes thats it milcomm 25B grease,I put a dab on a q-tip to reach it , and also use it on rails . good stuff ive used it on all my auto pistols .my cw is so much smoother after I ran 250rds and cleaned again . :amflag: