How To Increase lock up percentage?

C

Cyrusss

Joined
Apr 21, 2019
Messages
29
Hi guys, I got my sebenza 21 at 2 months ago, the lock up was prefect around 65% , but yesterday I cleaned my knife then reassembled , the lock up dropped to 15% suddenly , I'm sure reassembled right because I followed all steps from crk tutorial video, then I did the scale trick and rotated the stop sleeve to try many times but just increased to 40% only.
now I feel not very safe because crk recommends at least 50% lock up , I don't know what should I do now.
 
If I was in your position, I’d probably try the disassembly/cleaning/reassembly routine again--only far more carefully this time and after watching the CRK vid a dozen more times first. I had one of my Seb 21’s “go back together again poorly” after my first attempt at the d/c/r routine. If I remember correctly, I believe I had the blade noticeably off-center and I think it didn’t deploy/close the way it should either. I repeated the routine (as described above) and it came through my handling perfectly the second time. If my “more careful second try” (and then probably an “even more careful third try”) didn’t yield the desired results, I’d probably send it off to CRK for a spa treatment.
 
? what is the scale trick you refer to
Technically being at 40% is not a problem even though it is out of the normal specs. The problem is that it changed so dramatically that something must be wrong.
 
91bravo said:
Pics of the lockup?
Click to expand...

Here
72289956b82acfc1d5cbbe9552bb165783589ed57aefa858b7fab66f52ff4050350f4376.jpg
 
Cyrusss said:
Here
72289956b82acfc1d5cbbe9552bb165783589ed57aefa858b7fab66f52ff4050350f4376.jpg
Click to expand...

Might just be the angle but something looks off about the right side. I’d take it apart and reassemble taking care not to pinch a washer. Give it a hard wrist flick open after assembly to make sure all the parts seat properly
 
What I do is assemble the knife with all screws snugged but not tight and open the blade 75% and give it a couple of very light wrist flicks to set the lock and then fully tighten the screws.
 
archieblue said:
What I do is assemble the knife with all screws snugged but not tight and open the blade 75% and give it a couple of very light wrist flicks to set the lock and then fully tighten the screws.
Click to expand...

Tried, lock up increased to 55% after wrist flicks, then tighen the screws and open normal but still dropped to 40%
 
The first time I cleaned and reassembled my 21 I had a similar experience. Turns out that I had to turn the grommet that acts as a blade stop so it contacted the blade at the exact place where there was a barely perceptible wear spot. Then my lockup went back to where it was.
 
Greasepiggy said:
The first time I cleaned and reassembled my 21 I had a similar experience. Turns out that I had to turn the grommet that acts as a blade stop so it contacted the blade at the exact place where there was a barely perceptible wear spot. Then my lockup went back to where it was.
Click to expand...
This is a possibility, and if so you don't really have a problem. However I have never found rotating the stop pin to effect my lockup position much. This pin may be more out of round than normal.
OP- I think at this point if the lockup seems solid, there is no blade play, and the action is fluid, there really isn't anything to worry about. If the knife is not functioning right then that is another situation. 40% will be perfectly safe.
Seems strange, but maybe the variable was before cleaning and assembly and now it is right. If it bothers you-send it in.
 
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Open and close it a bunch of times. See if that works. If not. Use it a bit. See what happens.
 
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