Griptilian clicking sound when closed

D

dip_n_ride

Joined
Apr 23, 2008
Messages
154
Hey everyone,

I just received my second griptilian in the mail yesterday, and overall, I've always loved the grip and minigrip lines. However, I noticed that when the knife is closed, and I shake it back and forth, there is a metallic clicking sound, like two pieces of the Axis lock are hitting each other. I don't think it will affect the performance of the knife, but it is just kind of bugging me and I was wondering if anybody else had the same experience, and if so, does anybody know what it is? It looks like there is a small metal disk between the spring and the liner on the Axis lock, could this be to blame?

Thanks for reading, if you're anything like me, you want to know everything about how your knife works, and why it works that way, which is why I asked!

JMB.
 
On some Griptilians, the stop pin, where the back of the tang rests when the blade is open, rattles when the blade is closed and there is no pressure on it.

About 3-4 of my Griptilians had it when new, but after awhile all but 1 lost it after being opened and closed during use.

Some folks have put loctite on them to stop the rattle, but I haven't tried it.
 
I see. I thought it might be something like that. I really just wanted to know what it was, but if it does start to bother me after a while, maybe I'll try the loctite on it.

Thanks for your help.
 
You are right on the money. My BM520 does that too when I shake it really hard. I was concerned at first, but it's never given me any problems.
 
Sometimes the spring on one side can catch a little as it moves in and out with the blade rotation but its rare and something I have seen on the molded plastic models on occasion.

STR
 
Something sounds wrong to me - if there is rattling due to a loose stop pin, doesn't that mean the omega springs aren't doing their job? I would think the stop pin has to be under constant spring pressure... maybe when closed, the rattling stop pins are under no omega spring pressure? When closed, my stop pin is secure, so I wonder if the rattling is omega spring related.
 
When an axis lock is closed, the stop pin is under no pressure at all. At least on all of mine, there is space between the rear of the blade tang and the pin.

It only makes contact when the blade is fully open.
 
Sorry, I misunderstood what the stop pin was. It is fixed to the liner and blade handle. It does not rattle in mine.
 
I noticed on one of my mini-Grips, when closed and I shake it, there is sometimes a little rattling, and I realized it's the sleeve that goes over the stop-pin, but not the stop-pin itself. It happens because the sleeve is a little too short to cover the whole stop-pin in between the steel liners. If I tough that sleeve with my finger and shake it, there is no rattling. However, it does not affect the lockup or anything else.
Jim
 
Bear Claw Chris Lappe said:
On some Griptilians, the stop pin, where the back of the tang rests when the blade is open, rattles when the blade is closed and there is no pressure on it.

About 3-4 of my Griptilians had it when new, but after awhile all but 1 lost it after being opened and closed during use.

Some folks have put loctite on them to stop the rattle, but I haven't tried it.
Click to expand...

stop pin exactly. had this problem with my 943. removed scales, drop of crazy glue did the trick.
 
James Y said:
I noticed on one of my mini-Grips, when closed and I shake it, there is sometimes a little rattling, and I realized it's the sleeve that goes over the stop-pin, but not the stop-pin itself. It happens because the sleeve is a little too short to cover the whole stop-pin in between the steel liners. If I tough that sleeve with my finger and shake it, there is no rattling. However, it does not affect the lockup or anything else.
Jim
Click to expand...

:confused:
There is no sleeve on Griptilian/Mini Grip stop pins.
 
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Thank you for all the replies, I appreciate it.

I'm afraid I'm not familiar enough with the inner-workings of the Axis lock to understand a majority of what's going on here. Is there a diagram online somewhere where I could see the specifications?

Thanks again,

JMB.
 
Well, after running a google search (it's amazing, this Internet thing) I discovered it is indeed the sleeve that is covering the stop pin. Might just take all the advice you guys gave me and put some crazy glue on there to secure it.

It is shocking how crazy something as little as this can make you when dealing with knives. I guess it's because we buy them knowing at some point we might have to rely on them in an emergency situation, so we want to know everything that is going on with them and why? Or perhaps that we pay (what some might consider, me included) a pretty hefty chunk of change for an American made product and we expect it to work flawlessly? I'm not sure, but I'm glad you guys were here to help.

Thanks everyone.

JMB.
 
Steven Andrews said:
You must have missed my last two posts.

There is no sleeve on the stop pin.

http://www.bladeforums.com/forums/sh...d.php?t=581554
Click to expand...

Hey Steven,

I saw them, and thanks for the input. I will definitely be using the diagrams you linked to in the near future.

As far as the sleeve over the stop pin, while I don't claim to know everything about how Benchmade knives are made, it appears that there is indeed a metal sleeve over the pin (I can actually see more metal underneath the metal covering, which I can only assume is a sleeve, which is knocking against the liners making the clicking sound that has been driving me crazy). Somebody please correct me if I'm wrong. Maybe an email to Benchmade is in order?

JMB.
 
Steven is correct, there is no sleeve. The stop pin is solid with recessed ends, that fit into the holes in the liners.

The rattle folks are hearing in some, is the pin not always fitting 100% tight in the holes, allowing it to rattle and even turn in place.
 
Okay, well Steven, please accept my apologies.

So now that we've pinpointed the problem, is there anything to worry about? It this something I can just put a little loctite on and then move on with my life? Or is this cause for concern? It doesn't really seem loose enough to be dangerous, but then again, I haven't exactly stress-tested it.
 
dip_n_ride said:
Okay, well Steven, please accept my apologies.

So now that we've pinpointed the problem, is there anything to worry about? It this something I can just put a little loctite on and then move on with my life? Or is this cause for concern? It doesn't really seem loose enough to be dangerous, but then again, I haven't exactly stress-tested it.
Click to expand...

I've got 15-16 different Griptilians and about 3-4 had this rattle when I got them.

I have not noticed that it causes any problem at all and all but 1 lost it after being used awhile. It seems that as you open the knife and the blade hits the stop pin, it sort of "sets" it in place and the rattle stops.

Some folks are bugged enough by it, to loctite it, but I haven't found it that noticeable, unless I deliberately shake one really hard when the blade is closed....which I don't find a need to do often honestly.

I'd carry and use it awhile and see if it clears up on it's own, if it doesn't and it bugs you enough, a SMALL drop of crazy glue or loctite can be put on it.
 
What Bear Claw Chris Lappe said.

The stop pin will probably settle in and stop rattling after a little use, but if the rattle bothers you, a very small amount of blue Loctite won't do any harm. I have a dozen variants from the Grip family. I can't remember any of them ever having a rattle, but if they did, they haven't now.
 
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