Sebenza 25 pivot problem

kidcongo said:
Well, if it indicates a loss in quality, that started a long time ago, as my MIB Regular Sebenza that has never been carried, or used, has the same up/down play. Dust cannot get into the pivot if the washers are flush against the sides of the blade, as they should be. The inner, solid, concentric ring on the washer will prevent that if properly sealed with a fine film of grease.

CRK quality is increasing. Just look at the precision of the fasteners in the last year or two compared to what they were putting out a few years ago. Blades are better as well with the new hardness.
Click to expand...

I think that is generally true. Current tooling and tech allows companies to achieve tolerances that were unimaginable even 20 years ago, and at lower cost.
 
If you push and pull on the blade is that the wiggle you are talking about or side to side play?
 
No side-to-side-play - the wiggling is at moving blade down and up between completely open/locked and closed position.
 
Clearance is a necessary evil of all moving parts.
.0002in between the pivot and the pivot hole in the blade, then you need the clearance in the washers and in the scales.
What you are likely feeling is the clearance between the pivot and the scales. Conformance has to come from somewhere and since the titanium scales are softer in comparision, it's there.
Once the blade is forced into the locked state via the lockbar, you have three points of contact. Lockbar, stop sleeve and pin and then the pivot itself.
Tenants of engineering; Three points of contact- when one is removed, stability is somewhat compromised. Moving the blade between these states does just that.

Nothing to worry about.
 
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