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How to "loosen up" a folder?

Discussion in 'Non-Firearm Weapons' started by SleazyRider, May 3, 2013.

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  1. SleazyRider

    SleazyRider Member

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    I know it's a "low end" knife but I like it just the same, so I'd appreciate any and all advice on how to fix it. The problem is, this little folder is way too tight, to the point that I need to use pliers to open both blades. It appears that the rivets have been set too tightly.

    So how to I loosen it up? I've never had a folding knife apart, but I have good hands and a well-equipped machine shop at my disposal. Should I drill out the rivets and replace them with screws? What kind? Where do I get them?

    C'mon, guys, take me under your wing and walk me through this! :)

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  2. M-Cameron

    M-Cameron member

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    oil it, then open and close each blade a bunch.....should loosen up a good amount.
     
  3. SleazyRider

    SleazyRider Member

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    Tried that. Over and over, and then some. Didn't do a thing. It's been like this since new, and I'm quite certain it's riveted together too tightly.

    Thanks for the suggestion!
     
  4. Devonai

    Devonai Member

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    I'm with Cameron. A drop of oil and a lot of working it might help.
     
  5. JohnKSa

    JohnKSa Member

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    Clean the joint thoroughly with either hot soap & water or a good solvent.

    Once it's clean and the knife is dry, oil it with Buck's White Lightning Lube. If you can't find that, go to the Bicycle department in Wal-Mart and get some of their White Lightning chain lube--it's identical.

    If you can't find either one, go to a Lowe's and buy some of their Teflon Chain Lube. It's a very similar product to the other two.

    I'd try that before doing anything requiring taking the knife apart.
     
  6. Piraticalbob

    Piraticalbob Member

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    If lubricants won't loosen it up, insert the knife into a vise (between two pieces of wood so as to not mar the scales) so that 1/3 of the knife sticks out of the end (blades closed). Insert a screwdriver into the gap between the scales at the end where the blade pivots and very gently exert pressure to pry the scales apart slightly. Remove the knife from the vise and test to see if the blades have loosened up; repeat as necessary. Very little pressure is required, it's not like prying up a board.
     
  7. bikerdoc

    bikerdoc Moderator Staff Member

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    chain lube works well, If you you have to go to pry route like Bob said easy does it gentle pressure. You only need less than a fraction of a mm of loosening.
     
  8. Certaindeaf

    Certaindeaf member

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    I think it's simply oversprung and or the cam geometry is wonky.
     
  9. hso

    hso Moderator Staff Member

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    If lube doesn't work try the old "Pearl Drops" trick. It is mildly abrasive, liquid, easily rinsed out and can smooth out the mechanism by gently accelerating wear. As an alternative, the glass range top polishs may be used. Be sure to leave some difficulting in opening so that you can lubricate following a good cleaning.
     
  10. Deltaboy

    Deltaboy Member

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    Soft scrub will do it and it should not take long. :)
     
  11. valkyrie.rider

    valkyrie.rider Member

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    I have actually used a tiny file on the high spots. Seems to speed up the process
     
  12. DNS

    DNS Member

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    I'm curios about the Pearl Drops thing.
    Is this a product or something you home brew?
     
  13. Certaindeaf

    Certaindeaf member

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    It's tooth paste/polish.. a mild abrasive.
     
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