Pivot question,

KrisNZ

KrisNZ

Joined
Aug 28, 2012
Messages
12,136
Hello everyone hope you are all happy and healthy. Can one of you kind fellows please help with a problem I have, I can't seem to get the pivot undone on a Mcusta Basic folder that I have. It just turns when I use a screw driver, the other side of the pivot has no slot or hex to put a tool on, it's just smooth. Any idea's people?

Kris,.
 
Kris,

I don't have that particular knife, but I've had folder with similar pivot construction.
If you have a hot glue gun or a stick of hot glue (you can get thin ones for a couple bucks at hardware store),
melt it on the smooth side of the pivot (cleaning the surface with alcohol helps),
press it down against a flat and smooth piece of material (desk, glass, on top of beer bottle cap)
and try to unscrew it from the other side.
Hot glue can provide enormous amount of shear resistance and I've disassembled many folders this way.
Good thing about hot glue is, when you peel it, everything comes apart without a mess.
i.e. You could try this with glue or epoxy, but trying to remove those adhesives can be very difficult.

I'm sure other people will chime in on the issue, so keep checking back.

Thanks for your question and good luck!
 
Wow that is a brilliant idea with the hot glue. Some heat from the tip applied to the screw might be needed to loosen the loctite I assume could be in there . That or hot water, hair dryer etc
 
xuz said:
Kris,

I don't have that particular knife, but I've had folder with similar pivot construction.
If you have a hot glue gun or a stick of hot glue (you can get thin ones for a couple bucks at hardware store),
melt it on the smooth side of the pivot (cleaning the surface with alcohol helps),
press it down against a flat and smooth piece of material (desk, glass, on top of beer bottle cap)
and try to unscrew it from the other side.
Hot glue can provide enormous amount of shear resistance and I've disassembled many folders this way.
Good thing about hot glue is, when you peel it, everything comes apart without a mess.
i.e. You could try this with glue or epoxy, but trying to remove those adhesives can be very difficult.

I'm sure other people will chime in on the issue, so keep checking back.

Thanks for your question and good luck!
Click to expand...


This is a great tool-tip for other uses as well! Thanks for putting it up!

Stitchawl
 
xuz said:
Kris,

I don't have that particular knife, but I've had folder with similar pivot construction.
If you have a hot glue gun or a stick of hot glue (you can get thin ones for a couple bucks at hardware store),
melt it on the smooth side of the pivot (cleaning the surface with alcohol helps),
press it down against a flat and smooth piece of material (desk, glass, on top of beer bottle cap)
and try to unscrew it from the other side.
Hot glue can provide enormous amount of shear resistance and I've disassembled many folders this way.
Good thing about hot glue is, when you peel it, everything comes apart without a mess.
i.e. You could try this with glue or epoxy, but trying to remove those adhesives can be very difficult.

I'm sure other people will chime in on the issue, so keep checking back.

Thanks for your question and good luck!
Click to expand...

Thanks very much, I'll give it a go and tell you how it went.

Kris,.
 
...unfortunately after several failed attempts with the hot glue method, it was not to be. Fine idea but not this time. Never mind, thanks to XUZ for the info.

Kris,.
 
Other idea i used.
1 - warm up piwot - it might be locklited.
2 - press it, with clamps to surface via a rubber "bump" that will give you friction.
3 - unscrew.
Maybe this time it will get loose
 
KrisNZ said:
...unfortunately after several failed attempts with the hot glue method, it was not to be. Fine idea but not this time. Never mind, thanks to XUZ for the info.

Kris,.
Click to expand...

I'm sorry to hear it didn't work out for you.

Can you explain what's happening?
I'm assuming you are trying to remove the pivot screws and not the spacer.
When you use your flathead on one side, does the opposite side with smooth head just turn freely?
Have you tried Travis' and Idaho's suggestion of heating the bolt?
If they used something like loctite blue, few seconds with soldering iron will soften the loctite.

If you are really set on removing it, you could use bolt extractors like easy out or make a new hole with taps, but then the operation gets bigger.

Idaho's suggestion of using clamps and rubber bumps sounds good as well.
I have used silicone/rubber feet, rubber gaskets, etc of all sorts in the past and have found hot glue to be order of magnitude stronger.
But I think it may depend on material used in the end.

I think there are still some non-invasive way of extracting the screws so keep us posted.
 
Hey Kris...

If you open the knife, and put pressure sideways on the blade, (you can do it by laying it flat on a table or board and lift the handle while pushing the tip down... it doesn't take a lot), this will usually hold the bottom part of the pivot tight enough to remove the bolt. (Hope that makes sense.)

Edit: In fact, here's a post that describes this a little better, on your very knife.
http://www.bladeforums.com/forums/s...when-trying-to-adjust?p=11213364#post11213364
 
Last edited:
cbwx34 said:
Hey Kris...

If you open the knife, and put pressure sideways on the blade, (you can do it by laying it flat on a table or board and lift the handle while pushing the tip down... it doesn't take a lot), this will usually hold the bottom part of the pivot tight enough to remove the bolt. (Hope that makes sense.)

Edit: In fact, here's a post that describes this a little better, on your very knife.
http://www.bladeforums.com/forums/s...when-trying-to-adjust?p=11213364#post11213364
Click to expand...

Success!!! Thanks so much, (yes it did make sense), Highly recommended!!

Thanks to all who replied to my "help" call

Kris,.
 
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