Paramilitary blade tension question

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pc154
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Paramilitary blade tension question

#1

Post by pc154 »

There is a torx screw on both sides, which one adjusts the tension on the blade for opening??? I can take the one right out on the clip side and it doesn't seem to do anything??

Is there a trick or procedure for adjusting the tension?

Thanks.
Bill1170
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#2

Post by Bill1170 »

Neither. That knife has a bushing pivot that prevents the screws from tensioning the tang of the blade.
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JNewell
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#3

Post by JNewell »

That's not really true with most of the Spyderco knives using this design (P2, M2). This isn't a Sebenza, either in design or in manufacturing tolerances. If you are not getting tension adjusted with the pivot screws, tighten or loosen the stop pin screws, which will also affect how easily the blade rotates on the pivot.
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jon1all
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#4

Post by jon1all »

JNewell wrote:That's not really true with most of the Spyderco knives using this design (P2, M2). This isn't a Sebenza, either in design or in manufacturing tolerances. If you are not getting tension adjusted with the pivot screws, tighten or loosen the stop pin screws, which will also affect how easily the blade rotates on the pivot.
+1

Despite the claims of the bushing pivot system... there is enough variance knife to knife (I've bought six so I have seen the variance personally) that shows that tightening the pivot (on some knives) does indeed affect tensioning (2 of mine it has great affect upon). On some tweaking the standoffs can also have a great affect, etc. Again... lots of actual variance when it comes to these knives. I wish they were all immune to blade tensioning changes when tightening the pivot screw, but it's just not the case.
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JNewell
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#5

Post by JNewell »

You could always buy a Sebenza...oh, wait, they're a little more expensive! :eek: :D :spyder:
jon1all wrote:+1

Despite the claims of the bushing pivot system... there is enough variance knife to knife (I've bought six so I have seen the variance personally) that shows that tightening the pivot (on some knives) does indeed affect tensioning (2 of mine it has great affect upon). On some tweaking the standoffs can also have a great affect, etc. Again... lots of actual variance when it comes to these knives. I wish they were all immune to blade tensioning changes when tightening the pivot screw, but it's just not the case.
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Holland
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#6

Post by Holland »

JNewell wrote:That's not really true with most of the Spyderco knives using this design (P2, M2). This isn't a Sebenza, either in design or in manufacturing tolerances. If you are not getting tension adjusted with the pivot screws, tighten or loosen the stop pin screws, which will also affect how easily the blade rotates on the pivot.
definitely try this out, ive had success playing with the stop pin in the past. also rotating it can help sometimes
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Blade and Flame
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#7

Post by Blade and Flame »

Agreed on adjusting the stop pin screws, I just tried this on a PM2 and it made a huge difference in how fluid the pivot felt. The action feels much "lighter" now with the same pivot tightness.
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#8

Post by mattman »

Without looking at mine... does tweaking the stop pin adjust the "parallelism" of the liners, reducing "binding" at the bushing?
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#9

Post by Blade and Flame »

I think that's right. I had one copy of the PM that had a pivot that always felt tight, regardless of how loose the pivot screw was set. A little tweak to the stop pin screws made a huge difference to alleviate what must have been pinching at that point.
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