Weakening a backspring

A

AfterTFD

Joined
Oct 28, 2007
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Is it possible to weaken the back spring of a slippie without taking the knife apart?

I'm getting pretty fed up with knives being difficult to open. I would rather a blade just fall open on its own than be too tight.
 
They can be ground thinner. They must be ground from the spine side.
Bill
 
Thanks. That sounds easy enough..

Do they have to be ground the whole length or just in a small area?
 
I have heard that you can weaken a backspring by leaving the knife partially open for a couple of days. I do not know if this really works, or if it can cause any damage, but it seems like a reasonable thing to try.

Presumably, you can do this by opening the blade to the position where the spring deflection is the greatest, and checking it every day or so. YMMV.
 
MikeJackmin said:
I have heard that you can weaken a backspring by leaving the knife partially open for a couple of days. I do not know if this really works, or if it can cause any damage, but it seems like a reasonable thing to try.

Presumably, you can do this by opening the blade to the position where the spring deflection is the greatest, and checking it every day or so. YMMV.
Click to expand...

That really doesn't work- I've knives in my collection that were left that way for about a decade, and the springs are just fine.
 
I would stay away from the backspring pin when grinding. Be careful not to overheat the springs, too.
Bill
 
Did you try washing it out real good with hot soapy water and after drying oiling and working it.Nice tight snap is a good thing on a slip joint,but it shouldn't be diffacult to operate.
 
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