You were all great in supplying information about my K22. I have another question. The center pin does not always seem to apply enough pressure (or travel enough) to engage the bolt so sometimes the cylinder will not unlock. Any thoughts about that? I thought it might be old sticky oil, but if cleaning it well does not fix the problem any ideas? Has anyone else run into this problem? Center pin spring perhaps or issue with the bolt?
K22 center pin not unlocking the bolt/cylinder
- Thread starter TucsonMSH
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Make sure the rod is fully tightened. Place empty cases in the cylinder and turn the front end of the rod to see if is is loose. If that does not do the trick, The thumb release pushes the rod forward and if loose cannot push it far enough to clear the hole.
If there is a milled out groove behind the knurled portion of the extractor rod, then it is a left hand thread extractor rod.
The extractor rod is tight. It seems to function ok, however sometimes the hammer will not cock. When I press the cylinder release backwards it unlocks the hammer so the hammer functions. There seems to be a couple of milimeters of travel when I push the cylinder release backwards which allows the hammer to be free. Could it be an issue with the cylinder release out of adjustment with the bolt. Maybe the center pin is working and pushing the bolt back far enough, but the bolt and cylinder release button are the problem. Center pin not pushiing the bolt back far enough for the hammer to unlock or bolt/cylinder release issue? Again, thanks for your thoughts.
^^^^^
This. I have had this problem myself, and have fixed it by doing this.
A caution, howevver. The direction of the threads may be reversed so the jingle RIGHTY-TIGHTY LEFTY-LOOSEY may not work.
OK, if you push the thumb release all the way forward and the cylinder does not unlock, that is the problem, not when the thumb release is in its resting position. I would now check to see if the face of the bolt is perfectly flush with the recoil shield when pushed forward? If so, the problem lies forward of the bolt.
Did you disassemble the cylinders rod and center pin? Clean under the thumb piece and bolt? Spray the lug under barrel and work it so it moves free? One of those is stick and causing your problem of not being able to cock unless the thumb piece is pressed back,
The small spring on the center pin, the spring on the lug under barrel have to over come the spring behind the bolt to press bolt assembly and thumb piece back. If the bolt isn't back all the way the flat on the back bottom of the hammer arc will hang up on the bolt. either the center pin is sticky, the lug is sticky or the bolt has is stick or has crud behind it or thumb piece
I just got done tearing a old model 36 apart for the same issue. The spring on the center pin was sticking on the center pin. Once took it apart, sprayed with brake cleaner and wiped it of it worked great.
If you are not comfortable tearing the gun down, take the grips off and stick the gun in a container with 1 quart of any automatic transmission fluid, a quart of kerosene and a quart of acetone and let it soak for a day or so, then cycle all the moving parts repeatedly.
Acetone and kerosene are available at Ace
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