Anyway to tighten loose blade play besides tightening the pivot?

Irezumi said:
Over the last week i have received a new stonewash persian and roadhouse. Both are very smooth to open with no blade play at all. Maybe Emerson only send the best to us Aussies :-)
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I've gotten a couple good Emersons too trust me, it's like 60/40 on the hit/miss for me. But the fit is pretty bad on a few and they just feel forcibly screwed together. The screws don't strip, they use pretty good ones, it's the liners made of soft Ti that give out on me usually. It can be fixed by a trip back to the factory. Again this is an issue that develops over long term, but a lifetime warrantied knife is supposedly expected to be free of defects for that long. A lot of 440C Benchmade griptilians are still alive and kicking that are equally old.

What he does for the soldiers is impressive though and his ethics alone probably sell a lot of knives. I have a lot of respect for the man and I love the CQC-7 design to death, which is why when I had one and if I had another, I can deal with some of these flaws. I'm just in a phase right now of buying much more expensive knives that are perfect in every regard as opposed to 2-3 knives which collectively give me the same joy.
 
I purchased a CQC-7v a few weeks ago. The action felt gritty and extremely tight. After reading this thread I took it apart, adjusted the detent and used a product called action lube (sparingly) which I use on my weapons. It is a smooth as butter now, no blade play, and centered. I couldn't be more pleased. It almost feels like my Hinderer XM-18. Here is the product:

http://www.brownells.com/.aspx/pid=1147/Product/ACTION-LUBE-PLUS-reg-
 
Not exactly a "receiving bad or good knife" game. If it's loose just disassemble, clean, and assemble back to finger nail tightness and you're ready to go.
 
parbajtor said:
Would changing to phosphur bronze washers help?
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The existing washer material Nylatron is a "self lubricating" material, no lube is necessary. Keep your knife clean and the pivot area dry an you should have no problems. It takes tens of thousands of cycles to wear out the washers, maybe more. Lubrication is also a means to ttract much more pocket lint, dust, and other junk.
 
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