Bolt modifications for 2k2 and Kila Detents (detent slots)

[fprandy]

Please let me know if there is anything missing, or you need more information. The Kila detents will shatter on you if your bolt does not have grooves for the detents. Later models, such as the Alias style already have these cut in, and the kilas perform perfectly.

Photos are clickable thumbnails:

http://i113.photobucket.com/albums/n203/fprandy/Kila/th_PIC1.jpg (http://i113.photobucket.com/albums/n203/fprandy/Kila/PIC1.jpg)
Three Timmy bolts from right to left: PBK Snakeskin with slots standard,
Stock 2k2 Timmy bolt from my Lasoya with slots cut in. Stock Alias Style Bolt.

http://i113.photobucket.com/albums/n203/fprandy/Kila/th_PIC3.jpg (http://i113.photobucket.com/albums/n203/fprandy/Kila/PIC3.jpg)
The depth of the slots was pretty consistent. I used the depth of the grooves cut for the o-rings as a guide. I used the Alias bolt for a guide and a template for everything.

http://i113.photobucket.com/albums/n203/fprandy/Kila/th_PIC4.jpg (http://i113.photobucket.com/albums/n203/fprandy/Kila/PIC4.jpg)
Each bolt seemed to have the slots cut in a different length.
By looking down the feedneck, you can get a pretty good idea how long your slots should be.
http://i113.photobucket.com/albums/n203/fprandy/Kila/th_PIC5.jpg (http://i113.photobucket.com/albums/n203/fprandy/Kila/PIC5.jpg)
This is the 2k2 bolt after the grooves were cut in. I highlighted the grooves so they would stand out in the photos.

http://i113.photobucket.com/albums/n203/fprandy/Kila/th_PIC7.jpg (http://i113.photobucket.com/albums/n203/fprandy/Kila/PIC7.jpg)
Looking from the barrel side, you can mark the location of the kilas on your bolt. I used a fine pointed marker for this. Even though this is a picture of an Alias bolt, you get the idea. My 2k2 photos were to dark to use.

http://i113.photobucket.com/albums/n203/fprandy/Kila/th_PIC6.jpg (http://i113.photobucket.com/albums/n203/fprandy/Kila/PIC6.jpg)
Ok, here I'm using a 1/8" Dremel Tugsten Carbide Cutter (Part Number 9903) bit for cutting the slots. I realize that not everyone may have access to this exact bit. That's not important. What is important is the bit must be sharp and easy to handle. You do not want to cut through your bolt!!! For the actual slot cutting, I did it freehand by cutting the length first, following my reference line, and only cutting a very shallow groove. Once I was happy that I had it right, I went back over it for depth and width. Checking it in the marker as I went along. This photo shows how I finished up the bolt by holding the bit flat against the bolt.

http://i113.photobucket.com/albums/n203/fprandy/Kila/th_PIC8.jpg (http://i113.photobucket.com/albums/n203/fprandy/Kila/PIC8.jpg)
The final product should look similar to this. I really took my time doing this. a mistake, and you're buying a new bolt.

Thanks to all, let me know if there are any questions.

[crankwalk]

Awesome tutorial. Very nicely described and with the pictures. If you happen to have a part number for that dremel bit you used, it may be helpful.

I'm moving this into the Articles section and adding a link to it into the "ultimate sticky" :)

Thanks!

[Slimpikins976]

NICE POST !!!! this is so up my ally I will actually be attempting this this weekend if I get a sec or two. thanks again for this post Fprandy !!!

[fprandy]

I used a Dremel Bit 9903 to cut the slots. This is a Carbide cutter with a rounded tip. I got it at a local Home Depot.

[Slimpikins976]

ok sweet I will have to look into the bit, I have a dremel and a few bits but I am sure I do not have that one.. Also I noticed that you placed something black into the groves? Is this purely for ascetic reasons to show the groves, or did the heat of the milling burn the plastic while you were shaving out the indentions ?

[fprandy]

I highlighted the detent slots in black so they would show up in the photos.

When I cut them (new Dremel Bit) there was no burning or melting of the bolt material. The slots cut well, with little effort using a slow speed on the dremel. I cut small amounts at a time, cleaning up the cut as I went and checking it against the stock alias bolt as I went. Of course, the most important thing was to not cut too deep, and ruin the bolt.

Take you time while cutting, and do it when you have a steady hand.

[Slimpikins976]

sounds like a plan, Guess sunday morning after a few brewskies is a bad Idea.. heheeh but I never mess with power tools if I am feeling " under the weather ".

[Sl@sh]

wow yours are so much prettier than mine. my cuts got a little gnarly so they are all uneven and crap.

[fprandy]

Gnarly cuts shouldn't be much of an issue if any.

The slots are for the detents to ride in, and allow the detents to retract into the eye covers slightly.

Without the slots, the bolt hits the side of the detent, and eventually will tip the detent "sideways" and shatter it.

I learned the hard way.

Good luck and enjoy the Kilas.

[Sl@sh]

nah they're not an issue as far as performance at all, they just look all ghetto like someone tried to whittle it out with a pocket knife lol.