Poor lockup

biggerjon

biggerjon

Joined
Nov 10, 2006
Messages
1,973
i just traded a small sebbie for a large sebbie. i am happy with the trade, except for the lockup of the knife. it is worse than any sebbie i have owned. i am planning on sending it in to have some mods done to it and i am sure they will fix it at the same time.

is there something that caused this? i have already taken it apart and cleaned it and that changed nothing. any suggestions? i am not going to do some weird grinding or anything, so do not worry about that.

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it will actually close on you if you apply pressure to the blade. if you flick (i know, bad!) the blade open, it actually has good lockup.
 
Is it pretty new?

I guess you could try to use it a bit to see if it settles in. Or send it in.
 
If the lock up stays like that after you give it a good flick then there is definitely wrong. I don't think it would leave CRK like that. Its possible that the previous owner swapped the blade with another sebenza.
 
JoHnYKwSt said:
Its possible that the previous owner swapped the blade with another sebenza.
Click to expand...

Or bent the lock bar out slightly either from too much force when disengaging the lock or on purpose in an attempt to make the action smoother.
 
redsst said:
Or bent the lock bar out slightly either from too much force when disengaging the lock or on purpose in an attempt to make the action smoother.
Click to expand...

+1

Send it back and let them fix it, it's too expensive a piece to junk and as it is, too dangerous to use.
 
lol, don't worry guys, i am not going to use it like this.

i am waiting for a quote from crk for the work i want done. once i get the quote, i will send it on in.
 
The lock bar appears not to be fully engaged to the tang. If there's no extraneous material in there, that leaves only fitment of the components and then the actual configuration of the bar and tang.

Out of curiosity, I would push the lock bar over onto the tang. In other words, force it over by squeezing the bar toward the top slab, with moderate finger pressure, until the bar is 50% or so engaged to the tang. Then I would see how that felt in terms of there being any blade play. Next, I would open the knife normally, maybe aggressively, and see if the natural engagement had changed. Forcing it a bit would tend to clear anything that might be on either of the mating surfaces, and/or tend to realign anything that might be slightly out of whack in the bolt-up.

Seems kind of unlikely that there would be so little engagement, particularly considering that the knife has been used for a while.

Probably an easy fix for the shop if that truly is the fully-seated engagement though, given that there is a surplus, rather than lack of material in the bar and tang.
 
Looks like to me somebody along the way did some blade-swapping on that Sebenza. Each Sebenza's lock bar face and blade tang are custom-fitted at the shop, and unless there's something wackadoo about your stop sleeve, I'd say somebody tried thought the parts were interchangeable, which they're not.

Professor.
 
I thought I had read before that the machining tolerances were so consistant on each knife that you could switch out blades and still have everything fit correctly ?
Not trying to ruffle feathers, just wanted to see if I was not remembering correctly....
 
IIRC, each blade is hand fiited to each knife as is not interchangeable. Yes the sebbie has high tolerances, but each one has a lot of hand work done and I believe that the official word from CRK is that they aren't interchangable. By sending the knife in they can make the slight adjustments neccesary to make your knife work right.:thumbup:
 
WOW! I didn't know that the blades weren't interchangeable. If thats the case, what makes a Seb not considered to be a custom?
 
It's not considered custom because Chris didn't make each and every Sebenza. Most "custom" makers are makers that make the exact same knife over and over. The way I test to see if a maker is truly a custom maker is to ask them to make you a knife with say a slightly bigger or smaller blade than the "custom" knives they sell. If the answer is, "oh no I don't make them that way." It's clear to me that the "custom" maker is merely a one man production knife maker. In many ways IMO CRK is more of a custom maker than many of the makers that claim to be custom makers. Don't get me wrong, the one man production knife makers offer very high quality knives at a good value, they just don't fit into my classification of a custom knife. If John Doe knife maker says you can order his or her Model A, B, or C with no deviations, then model a's will all be the same. An example of what I would consider a custom maker is Tom Mayo. Tom can make you a knife with the blade length you want. For the most part, Tom's knives are one of a kind but the key is that he is able and willing to do a one of a kind folder. That is if you are lucky enough to get on his list. Todd Davison is another.:)
 
Thanks Scott Dog. I appreciate the explanation. But to debate you on what aspect, if a maker makes all his own product but won't make a change in the size of the blade... isn't it still custom despite his unwillingness to make changes in the design? Just playing the devil's advocate.

But I do know understand. CRK are not each made by CR's hands hence the loss of the classification. I thought it could be considered custom because it is still hands on by CRK people. Especially now that I know that each blade is fitted to each set of handles.
 
The whole classification of custom / mid tech / production / mass production etc. is all BS. It's crap often put out by custom knife collectors to somehow differentiate the knives they like from other knives. They'll spend endless hours debating, classifying, making bylaws for, to try and figure it out. These types who insist on these classifications are the types to believe in the mystical soul or blood of the maker kind of stuff.

If you are rational, there are only two things to consider in a knife: 1) quality 2) aesthetics. That's it, end of story.
 
The custom versus production question has been beaten to death amd there will be almost as many opinions as there are members of this forum. I'm short (5"5"") and if I order and am fitted for a custom suit, it probably won't fit anyone else. A suit bought off the rack won't fit me as well (and won't be as expensive). The off the rack suit might be from an expensive well known maker, but it is off the rack nevertheless. Likewise, Jonh Doe knifemaker may make his or her model A knife and if you put ten of them together, they will all be the same. It's really just a matter of semantics. A knife made by John Doe is still by most folks considered to be custom. The sad reality is that the maker that makes knives one at a time and all slightly different will have a real hard time paying his/her bills and making enough money to make it worth his/her time. A good example is Rick Hinderer. To keep up with demand (and maximize his profit, which he needs to do to make it worth all the time and dedication that he puts into his knives), Rick has decided to have his blades CNC'ed (precut) so that he can get more product out the door and more money in his bank account. That's not a bad thing. We all want nice things in life, and to do that, money must be made. Yeah you might hear people in this forum crying that Rick sold out but that OK. He makes a good product in high demand and to me it doesn't make a difference what label you put on it, what matters is that you get a product you like for a price you are willing to pay.:thumbup:
 
DaveH said:
The whole classification of custom / mid tech / production / mass production etc. is all BS. It's crap often put out by custom knife collectors to somehow differentiate the knives they like from other knives. They'll spend endless hours debating, classifying, making bylaws for, to try and figure it out. These types who insist on these classifications are the types to believe in the mystical soul or blood of the maker kind of stuff.

If you are rational, there are only two things to consider in a knife: 1) quality 2) aesthetics. That's it, end of story.
Click to expand...
haha, I don't really care that much about it. I am just trying to understand it. I couldn't care less if a knife I buy is custom or not. I just appreciate quality. I was just curious for my own personal knowledge.
 
Scott Dog said:
The custom versus production question has been beaten to death amd there will be almost as many opinions as there are members of this forum. I'm short (5"5"") and if I order and am fitted for a custom suit, it probably won't fit anyone else. A suit bought off the rack won't fit me as well (and won't be as expensive). The off the rack suit might be from an expensive well known maker, but it is off the rack nevertheless. Likewise, Jonh Doe knifemaker may make his or her model A knife and if you put ten of them together, they will all be the same. It's really just a matter of semantics. A knife made by John Doe is still by most folks considered to be custom. The sad reality is that the maker that makes knives one at a time and all slightly different will have a real hard time paying his/her bills and making enough money to make it worth his/her time. A good example is Rick Hinderer. To keep up with demand (and maximize his profit, which he needs to do to make it worth all the time and dedication that he puts into his knives), Rick has decided to have his blades CNC'ed (precut) so that he can get more product out the door and more money in his bank account. That's not a bad thing. We all want nice things in life, and to do that, money must be made. Yeah you might hear people in this forum crying that Rick sold out but that OK. He makes a good product in high demand and to me it doesn't make a difference what label you put on it, what matters is that you get a product you like for a price you are willing to pay.:thumbup:
Click to expand...
I hear what you are saying. Thanks for the explanation.
 
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