Lock Up Question

Gravelface

Gravelface

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Nov 8, 2005
Messages
11,306
My sebbie's lock up is almost 100% over, I have read this doesn't really affect anything but at the same time read that it is not "good"

What usually happens to knives like this that get sent in?

Does the lock bar side get replaced?

Does the Blade?

Does it pose any safety issue?

It is a BG 42, dual thumb studs and my absolute favorite seb I own.
 
It would seem that the easiest way for CRK to remedy the situation would be to replace the scale, but that's just my take on it. Wow, I've never heard of anybody wearing their Seb down to ~100% lockup...
 
The easiest way to fix it would be to replace the stop pin, not the scale. A slightly larger diameter pin will fix the lockup.
 
As long as it still locks up. I think it would be ok. If any play develops then I would send it in.
 
Biginboca said:
The easiest way to fix it would be to replace the stop pin, not the scale. A slightly larger diameter pin will fix the lockup.
Click to expand...

True, it would be the easiest way to fix it, and it would also be the cheapest, but (imo) I think the better way to fix it is to replace the lockbar scale... provided there's no wear on, or deformation of the stop pin.
 
THE PUNISHER said:
A 100% lock on a sebb is a new one to me,i would not sweat it...
Click to expand...

More lockup is definately better on a Seb than less, safer.

I have an older BG42 creeping to about 80% now, no worries.

If it is not touching up on the opposite scale don't worry about it.

A couple things you can try:

Check the clip and make sure it does not touch the bar when open.
On your next takedown try rotating the stop pin a little for fun.

If it does go all the way over and starts hitting the opposite scale
give CRK a call and see what they think.. It's not the blade but they
may be able to rework the Ti lockbar tip.

GL
 
The lockbar isn't touching the other scale, but it is to the end of the blade, the only gap is the thickness of the washer.

Thanks for the clip comment, it actually does touch.
 
There is really nothing wrong wit it. It doesn't necessarily mean its not good is what I'm saying. So long as its still solid with no slop or blade play up and down use it. If it does bug you that much send it in to the shop to have it looked at. This is akin to brakes wearing down on a car. The pedal may go down further after wear but the car still stops very well. Eventually you'll have to have it fixed but for now its really not a bad thing. Its just a natural thing that happens from use and time as the lock self corrects for wear. I personally like my frame locks to travel in some after break in and have some that have been further in from the time I opened them. My Sebbie was one like this and it never gave me any problems at all and worked fine for many years. In fact its still working fine for someone else at this time. Worry about it when the blade shows vertical play or bangs the opposite side liner. Thats what I do anyway.

STR
 
I'v thought about the same thing, my BG-42 is at about 95% :o

It is gulling at the tang and lockbar face... But the only fix would be a slightly larger stop pin, but the would throw the off geometry of the contact area.

A new blade would NOT be BG-42, and a new lockside slab would not have the grooves cut around it like the BG-42 had :o

If you find anything out please let us know :)
 
The blade is rock solid, no play any which way.

My concern and reason for asking was "if" it was a problem. As I always here folks comment on the % of the lock up of their knives and I was concerned that with mine being as far over as it was, it may present a safety issue.

But everyone seems to agree that as long as no play is evident that it is Good To Go.

So-Lo, those were my conerns also, I certainly don't want a new blade....I really like my BG-42. I didn't even think about the grooves , but I would rather a cosmetic flaw and keep my original blade if that is an option.

I am about to take it down and clean it up, rotate pins and screws.....see how that works.
 
Original Lock Up
DSC01003.jpg

Clip pressing on Lock Bar while open........is this bad?
DSC01005.jpg

DSC01006.jpg

Some pitting on the blade on the large washer side
DSC01018.jpg

No date stamp......was there a time period where they stopped or did it just get missed?
DSC01028.jpg


After cleaning
DSC01029.jpg

DSC01032.jpg
 
Gravelface

How long have you had that seb? It looks great and has a lot of character :thumbup::thumbup::thumbup::thumbup::D
 
That looks like 90-95% so you're in good shape.
I have one with no lot # on the scales and it's anodized.
Yours has the new style clip.

You can bend that clip a little so it is just barely touching closed
and just barely not touching the lock bar open and locked.
The way you have it puts a little extra pressure on the lock bar.
 
I doubt the blade has changed any. Its usually the titanium locks that wear and change the most and second would be the stop pin so if nothing else a new lock and new stop should refresh it should it ever come to that and I'd think that is something that could be done. In fact if Chris didn't offer that I think I'd just take the lock off and have it copied by a waterjet or laser cutting service and have the lock side remade and make another one before I'd swap that blade. Actuall I certainly would not trade that BG42 blade for two of any of the other blade steels Chris has used in the Sebenza including the S30V. I personally feel the BG42 is just a better alloy but its just my opinion.

STR
 
Chris Reeve once told me that you cannot remedy a worn Seb lock by installing a larger diameter stop sleeve. A dented or severely marred stop sleeve, yes, but changing an undamaged sleeve for the sake of affecting lockup will not work because it will detrimentally change the mating angle of the lockface and blade tang ramp.

The only way to repair a 100% worn Sebenza lock if the stop sleeve is not severely dented or marred, is to replace the lock-side ti slab. The stop sleeve can never be larger in diameter than what a stock sleeve is.

Professor.
 
= a hair larger stop sleeve + minor refile of the lockbar angle.

Heck, I'd gve it a whirl if it was mine..
That's a rare locking sleeve variation the OP has..
 
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