light strikes
For all interested in curing light strikes i fit in a incomplete blue tinted résumé here, right in the beginning, out of the following pages.
Of the current measures i took on my Kadet 2 conversion kit on a SP-01 Shadow frame. Also i was heading
to get it working with the CCI SV. Every gun is a law unto itself it is said. On your gun something else could be the cause. All hints where given by or found in the Kadet Klub forum:
- Because i adjusted my (self installed SA) trigger set screw in a too tight way, the movement of the trigger was to little for its entire task : To lift the sear enough to get it completely over - and out of the way of the second (half cock) notch. The gunsmith opened the little hex grub screw about one to two turns. And the hammer is freely moving down. Before he was delayed on the way down to hit the firing pin. That´s reduced it`s force hitting the FP.
- Hammer- / mainspring. I am using a 17 lb or stronger one. Standard is 18-20 lb.
I think the kadet conversion kit was made for working with the factory hs. With standard velocity ammo, i use CCI SV, it could be helpfull to go down to 17 lb to avoid other issues. Like slide not staying open on the last round. Ammo not getting striped from the mag into the chamber. Maybe stove pipes.
- I cut down the recoil spring to 92 mm/ 3.62 inches. Later with more modifications i reinstalled one in the original length. Stay with the original length is better - cut down recoil springs bring more force into the slide stop pin -
wich can enlarge / oval the bore hole under the barrel, for example.
- Improvements to make the slide gliding well. Use of "dry lube" like Fluna Tec Gun Coating in/ on the whole mechanics and for cleaning the barrel. Before i had to made the gun oil free with brake cleaner spray. If not Fluna than thin oil on the rails - no thick oil or grease.
Looking for places, springs, parts connected with the movement of the slide. My FP retaining plate was scratching on the upper. The magazine follower was disturbed by a to long edge of the slide stop. The slide stop spring was to ease too. The shadow 1 hammer corner hook up/ rattled when passing the firing pin retaining plate.
- Shortened or lighter firing pin spring. Ball pen spring - not all fit in - tended to be to weak - FP retaining plate can get loose and go airborn. Spring is too light in tension : the FP retaining plate and the FP can get ejected.
Painters recomendation (CGW) :
wire dia 0,38 mm/ 0,015 inch, length 28,57 mm / 1,124 inch, outer dia 3.77 mm / 0,148 inch
Europe metric based i could find :
wire dia 0,40 mm/ 0.0157 inch, length 30 mm/ 1,2 inch, outer dia 4mm / 0.157 inch.
- Reshaped firing pin. FP4 is my favorite in the moment. Kept the wideness to cover priming area but avoid hitting the pure brass rim area. Thank you painter.
- Straight FP. Once i found a bend FP in the FP channel. Searching for light strikes. Probably happend when polishing it in a drill press..
- Absolutely no residues of oil or lube around the FP area, in the channel, under the FP retaining plate or on areas from where it could get moved close to the FP assembly. Not leaving superfluous lube on the rails. It possibly gets translatory motioned under the firing pin retaining plate. And then gets pumped into the FP channel too. Where it affects the movement of the FP. Thank you painter.
- A gunsmith checked and maybe reduced the headspace.
- Examine if hammer hits upper part = slide housing of Kadet. Thank you Andres B
- Keeping the contact area from slide to barrel face clean
I also did two brief summarys for light strike issues and ammo related ideas found here in the kadet forum:
https://czfirearms.us/index.php?topic=106393.0
https://czfirearms.us/index.php?topic=106246.0
Regular start of the thread:------------------------------------------------------------------------------------------------------------------
Hello Kadets,
just got the stove pipe theme solved with the help of this forums members by filing the angles to the ejector.
(
https://czfirearms.us/index.php?topic=7863.90 ). No stovies anymore - and i tried different sorts of ammo. happy!
My not anymore german Club30 Berlin gunsmith where i bought the Kadet conversion kit in combination with the CZ SP-01 Shadow (1), failed to fix it twice, then finally blamed me for a false use of the handgun.
But my CZ kadet knows my interest in understanding an solving problems. So she now surprisingly offers me now lots of light strikes to dive into the further understanding of her complexity. And to keep me on reading in this superb forum. Wich is more effective than a Berlin weapons master shop.
For curing the stove pipes, before tuning the extractor, i recognised a movement in the extractor claw in the last moment when delivering the ammo going into the end of slot into firing position. It had contact with the slot and started pivoting out. So i deepend the slot as mentioned in the shares, a little by polishing bit by bit until the extractor fitted exactly into. The extractor claw is quite new and has a good grip of the brass rim.
The firing pin spring and the main/hammer spring is all original, so should clearly have the minimum force of the recomended 17 lbs, plus. And i always store the gun nicely cleaned after shooting it. Including breech face and checking the firing pin channel. The FP is moving freely in its channel. On the rails i use thin oil as adviced.
Using CCI Blazer i got lots of ignition fails. Like 25 on 100 yesterday. Also missfires with the standard CCI. The second strike mostly does it. But some of the ammo is not working at all : Thats how the not firing ammo looks like after 5 strikes, delaborated and then taking the pic of the case (it`s not the kadet magazin but a 1911, which the shell is leaned on ).
Do you think it is a too light strike impact or an other issue ?
