CKF Sukhoi pivot (unscrewing it) question...

Step 16 was a second shot of Patron, but I opted to leave that one out.:rolleyes:

The Burgh said:
Congratulations, and thank you for posting, Scrim?

I am certain that your idea will be cloned by many knifeowners with frozen pivots.

Also glad to hear that alcoholic beverages were an integral part of the process! However, surprised that it was only one of the steps.
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Having trouble editing this post. It will just not allow me to copy and paste. I had a post here and then decided to edit it and since then I cannot get that post accepted. WTF? is going on?

I've had this thread in an open tab on my computer for some time. I'd just like to say that the sukhoi 2.0 is one of my two favorite knives, but, big but, the pivot is a problem. Whatever CKF is using to make their hardware is very soft and strips easily. By strip I mean that the heads hole where you put the torque driver becomes worn easily and wont turn when a driver is inserted. I slightly stripped both of one sides interior screws (underneath the Carbon Fiber) and the pivot. Sure, I could have been more careful, pushed down really hard with the driver to insure no slippage occurred and turned really slow, and I will next time I take this apart. So I wrote CKF and they said they would send me new hardware. Then I wrote them again when it didn't show up in a reasonable amount of time. I had to write them quite a few times. I got two responses saying that I had to give them my phone number, so I did, still no hardware, but eventually, they did send it to me. A full set, including lock bar insert and bearings.

My problem was different than yours because my pivot head was stripped, and therefor useless. I opted to take a hand drill to the screw side of the pivot in order to get a nice clean pilot hole going and then I just used a small metal bit to drill the pivot until it came apart. The new screws under the CF almost feel like they were stripping again even though I was very careful.

I love this knife, but when I think about getting a morf or any of their other knives I kinda shudder from the experience. So far I've passed on any other CKF knives that have the same pivot (and probably the same hardware).
 
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So, I added that little bit to the beginning and it worked. I have no idea what that snafu was, but I guess the mysterious world of internet is not mine to understand today.
 
Another option for this type of pivot could be the using the chuck of a drill. I would think you could lay the drill on its side, hold the knife against the properly opened chuck (and hold the chuck to prevent it from turning) and then turn the torx on the other side. Just a thought.

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Good idea, but the other side is just about completely flat.....nothing to grab.
 
Thanks for sharing. I've heard of a similar method using nail polish and acetone.

I have a Gratch so it's good to know what I might face if I ever try to disassemble! Fortunately, the Gratch has a point of purchase on each side.
 
I had a similar issue recently on a different knife.

What worked for me, is to open the knife and press the tip of the blade against something. Press kinda hard. This will put torque on the pivot and should allow it to keep from spinning. While pressing the blade against something, unscrew the pivot. It should come right out:thumbup:
 
Glad to know you got the knife back together fine. I have a Sukhoi and think it's a great knife overall. I think, however, when CKF and Anton Malyshev were designing it they took inspiration from both the bad and the good of soviet aerospace: beautiful designs that are amazingly capable when working properly, but needlessly overcomplicated on the inside and held together with low quality parts from China.
 
Scrim said:
Good luck to anyone who decides to undertake this potentially risky method. It worked for me. It was the only method that worked, of all I tried.

If you do it, let us know how it went for you...via this thread.:cool:
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Chopped your instructions off. No need to necro post AND make a huge reply by including instructions. Im tempted to try this. I have a V1 that has the backspacer rattle (screws prob vibrated loose during shipping or maybe even needs to be shimmed). Im wondering, should I just try hitting the pivot with a heat gun first to loosen loctite? In all reality I wish I could send it to a pro to do this. Even though I dismantle high-computer components Im just not too comfortable with knives.
 
dmstewart said:
Chopped your instructions off. No need to necro post AND make a huge reply by including instructions. Im tempted to try this. I have a V1 that has the backspacer rattle (screws prob vibrated loose during shipping or maybe even needs to be shimmed). Im wondering, should I just try hitting the pivot with a heat gun first to loosen loctite? In all reality I wish I could send it to a pro to do this. Even though I dismantle high-computer components Im just not too comfortable with knives.
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From the original instructions:

"2) I heated the pivot with a hair dryer at close range, set on high. It got the knife surprisingly hot within about 30 seconds."

I'd try the hair dryer method first. I'd be concerned that a heat gun might put out too much heat and do some irreversible damage. The hair dryer, set on high heat, about 3 inches from the knife, got it plenty hot but didn't damage anything due to excessive heat, burning, melting or otherwise deforming any non-metal parts. You can always go to the heat gun if the hair dryer doesn't help accomplish the goal. Remember, you only need to heat it enough to allow you to, using reasonable force, to break the hold of the lock-tite.

Please let us know how it goes for you...and good luck!
 
Try a pair of needle nose pliers with a piece of electrical tape over the metal teeth of the pliers so it doesn't scratch the pivot. grab hold of one of the three spindles the length of the pivot insert torx on the other side and slowly turn in the direction you want... hope that helps.. OOK
 
OOK said:
Try a pair of needle nose pliers with a piece of electrical tape over the metal teeth of the pliers so it doesn't scratch the pivot. grab hold of one of the three spindles the length of the pivot insert torx on the other side and slowly turn in the direction you want... hope that helps.. OOK
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Ok, this first and then I'm trying the hair dryer method. Thanks. I'll let you guys know how it goes
 
Scrim said:
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From the original instructions:

"2) I heated the pivot with a hair dryer at close range, set on high. It got the knife surprisingly hot within about 30 seconds."

I'd try the hair dryer method first. I'd be concerned that a heat gun might put out too much heat and do some irreversible damage. The hair dryer, set on high heat, about 3 inches from the knife, got it plenty hot but didn't damage anything due to excessive heat, burning, melting or otherwise deforming any non-metal parts. You can always go to the heat gun if the hair dryer doesn't help accomplish the goal. Remember, you only need to heat it enough to allow you to, using reasonable force, to break the hold of the lock-tite.

Please let us know how it goes for you...and good luck!
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I'll let you know. My heat gun on low isnt much hotter than a hair dryer, but it is hotter. So if the needle nose pliers method doesnt work, then Im moving on to heat. Thank you
 
Woo hooo!! Its out!!

Put the knife in a vise (with towel) did the needle-nosed pliers with the electrical tape and it came out! It wasnt working with the knife close in the vice so I opened it, flipped it around, went really slow with a lot of pressure and its coming out!! You guys rule. I got this Sukhoi for a great price. It was literally never used because the owner couldnt get the backspacer shimmy fixed. Now, hopefully, I can tighten it up and its a brand new knife. Of course, I'll lube it too. I have Blue Lube and Tuff Glide here. Which one do you guys think is better? I used Tuff Glide for a long time and just recently tried Blue Lube on my griptilians. Cant tell which is better
 
dmstewart said:
Woo hooo!! Its out!!

Put the knife in a vise (with towel) did the needle-nosed pliers with the electrical tape and it came out! It wasnt working with the knife close in the vice so I opened it, flipped it around, went really slow with a lot of pressure and its coming out!! You guys rule. I got this Sukhoi for a great price. It was literally never used because the owner couldnt get the backspacer shimmy fixed. Now, hopefully, I can tighten it up and its a brand new knife. Of course, I'll lube it too. I have Blue Lube and Tuff Glide here. Which one do you guys think is better? I used Tuff Glide for a long time and just recently tried Blue Lube on my griptilians. Cant tell which is better
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Congrats! A relief, isn't it? -- re: lube...I use Nano Oil. Great stuff. It's a little thicker than Tufglide. If I take apart a knife and can get right to the pivot, I'll always use Nano Oil. If I didn't want to open a knife up for some reason, then I'll use Tuf Glide specifically BECAUSE it's thinner and will run down into the pivot if I need it to, without disassembling the knife. Enjoy your Sukhoi. It's an awesome & beautiful knife. When it runs super smooth like it can, after these types of cleanings & adjustments, and you get your backspacer all tightened up, I bet you'll love it even more.:thumbup:
 
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