pivot very tight only with carbon fiber scale

[JPR984]

Hey guys I was wondering if some of you have this same problem, I just bought of the exchange a regular with a carbon fiber scale it came with the original titanium scales as well. The knife is perfect when in original form perfect centering and rock solid but when I try to install the carbon fiber the same way, I can't even move the blade. I need to loosen the pivot and actually more so the blade stop screw almost until its free spinning in order to be able to open and close the blade. now what Im thinking is that the carbon fiber is softer and the stop sleeve and pivot bearing is setting into the carbon fiber a little leaving less room for the washers, which also causes the blade to be off center. anyway it seems like I know what the problem is but I was just wondering if anyone else has had this issue, and if they had a way to deal with it other than leaving the screws loose?

 

[Haze]

The scale was not fitted properly by who ever made it. It's not impossible to fix but it depends on what the problem actually is. Always be carefull who you buy secondary market pieces off.

Can you post a pic or two of the scale showing both sides ? It may be that the inside surface is not totally flat or that one of the screws (especially the pivot) sits deeper that the others. It could also be that the scale is too thick and the countersinks on the out side are not deep enough so it's pressing on the washers and blade. The positioning of the holes is also something that is easy to mess up and that would mean the scale is goosed, there is no fix for that.

 

[JPR984]

I dont have a camera that would capture those features very well , but from further inspection the countersink or bevel on the inside at the stop collar may be a bit too wide and deep and after measureing with my calliper the width at the stop sleeve between the two titanium slabs is 0.1516" while between the titanium and carbonfiber it is 0.1500" the entire surface is completely flat. as well so im sure the problem is at the stop sleeve. and I think short of regrinding the inside surface downto remove the bevel the easiest way to fix it would be to find a slightly longer stop sleave to fill that 0.0016" or find some sort of insert.

 

[Haze]

You can build up the inside edge of the hole with layers of super glue and then sand it flat and re drill the hole. It is not an ideal option but it is an easy and quick fix and far easier than messing with new stop pin barrels as that will mess up the tolleraces again if you don't get it perfect.