How the Groove got its Groove back

Joined
Aug 10, 2008
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563
so I've had my Groove for a few days now and just haven't been QUITE happy with the action - a bit too gritty no matter how much fiddling i did with the pivot pin. I decided to strip it, clean it, sand it, lube it, and put it back together. It worked; the knife is significantly smoother opening now. And I have all these neato pictures to share.

I like to start out on this side, as i find removing the pocket clip makes working on the knife a lot easier. It turns out it's necessary anyway.

clean1vb5.jpg



In this picture, you can see the clip was covering the back of the pin, which is very interesting - uses a hexagonal bolt head to hold itself in place when passed through the frame.

clean2el1.jpg



Next, go at those bolts securing the G10 overlay with a Torx T6 jewelery driver. There's a bit of loc-tite (or something; Thomas?) on the screws so don't strip out the head by twisting too hard.

clean3mr2.jpg



This is what you're left with on this side...

clean4dz9.jpg



Onto the next side:

clean5al1.jpg


and removed!

clean6dz3.jpg



From here, you use a Torx T9 to remove the pivot pin screw and the T6 again to remove the body screws.... I didn't take very good pictures of this part as my hands were sorta full.

The body screws are a really neat design. For one, the heads are hidden by the G-10 overlay when it's attached. The heads fit in a recess, they pass through the backspacer and then thread into the opposite side. I like it.

So once you've taken out the pivot pin screw, the body pins, and pulled off the scale, it looks like this...

clean7vg7.jpg

clean8pi0.jpg


obviously, something has to be done! I think it's just that the production date was in April 07 (if memory serves me right) but there was all sorts of black, graphit-ish stuff in there that was just making an awful noise.

so cleaning off the contact areas on the blade with just a paper towel gave me this nice mess:

clean10kx6.jpg


after going at all the contact surfaces (inside of the scales, outside of the blade around the pivot, both surfaces on both washers) with paper towel, I gave them a light sanding with fine-grit sandpaper, like so:

clean9yi5.jpg




okay, I'll continue this in another post... lots of images, haha...
 
then reassemble carefully, a little oil on the contact surfaces....

clean11at3.jpg



and begin to reassemble...

clean12wt5.jpg

clean13yt8.jpg

clean14bn5.jpg


and Presto! adjust the pivot pin screw, and hooray! It's all smooth and wonderful.


oh, and I figured you might like this shot: showing all the individual components of the Groove. This knife has 25 individual components... kinda crazy!

explodebw5.jpg












so yeah... I'm sure you've all taken your knives apart before but I figured this would be a nice pictorial. These are lot easier to take apart and put back together than the SpeedSafe knives, that's for sure!



-James
 
Thank you for the instructions! What number grit sandpaper did you use, and what type of lube did you use?

Thanks!
 
T9? really? the standard production kershaws are all either T6,8 or 10. im surprised you got it to fit. good tear down btw.
 
-oil is your standard 3-in-1, which i've always found works well. Thinking about trying something new soon.

I will check back on the grit - I think it's 600?

Typo, it is a T8. Sorry!

thanks for the comments!

-James
 
Very nice James! My favorite pic is the one with all the components. I need to do one of those with a leek for those who want to know how to become Dr. FrankenLeek.
 
-oil is your standard 3-in-1, which i've always found works well. Thinking about trying something new soon.

I will check back on the grit - I think it's 600?

Typo, it is a T8. Sorry!

thanks for the comments!

-James

Ok thanks, I need to find some finer sandpaper then.
 
Nice job on the disassembly pictorial. Maybe some of us can do disassembly pictorials for different models, and post them to the same thread. ???
 
Elarski - that sounds like a good idea! I've also taken apart my Leek and my Shallot... swapped 'n polished some pins so now the shallot has silver ones.... Shallot is a real PITA to put back together!
 
Nice job. I love it when you do a little work and then you really start to like a knife. Thanks for posting.
 
I find it very relaxing to tear apart a Kershaw. For one thing, they're built well enough that they go back together :-)

I usually sit down at my desk ( pictured), clean off the crap, put on Oasis - (what's the Story) Morning Glory? and break out the Torx, loctite, lubricant, paper towels, sandpaper, and go to town. So far they've all benefited from this treatment :)

I agree, teardown thread would be a great idea!
 
I like the idea; i also have Shallot tear-down pictures I could share.

I really want to see what an Offset looks like inside...

-James
 
I did the same thing to my grooves and noticed much better action and smoother as well. Good write up.
 
Try some 1200 grit sandpaper on the pivot area, makes them veeeeery smooth :D
 
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