Register
Log In
Home
May 17, 2010
Offline
Still working the kinks out of my wife's 15-2; quick recap:
Gun was bought used at a gun show for $400
New hot blue
new grips ( LB )
replaced cylinder and crane with spare
>> new installed EWK small parts kit
The gun is "loose" and will fail to fire on occasion. I have now take this gun to the range alone four times with nothing to do but shoot and examine what the gun is doing (or in this case failing to do).
When shot in SA.. there is nearly never an issue
When shot DA very quickly there is only a 5% chance of a failure
When shot DA slowly there is a 30 to 50% chance that it will fail at least once during the six shots.
The gun is loose at two points. Installing the EWK parts kit did NOT correct this even though that was my hope.
There is a very small amount of fore and aft play of the crane to the frame. I do not think it is an issue in and of itself, but it may add to the overall loose feeling.
There is about .01" fore and aft play of the cylinder to the frame after the cylinder has been closed and latched. I now think this is the root cause of the problems.
When installing the EWK small parts kit, I made sure to replace the detent ball and when I did I noted the screw position ( the screw that holds the ball) and made increase just a little bit the pressure against the spring that in turn presses against the ball. This may have helped some, but to be sure there is still too play when compared to the other three 15-2's.
My next move is to actually shim the cylinder between the crane ( front) and the cylinder. The only other place to such would be behind the extractor, but its design makes that difficult.
I cannot figure how this has occurred. I do not think the frame is too big, and I know that three cylinders are not too small. So I am at a loss as to explain this situation. All suggestions appreciated.
Soap Box, Ballot Box, Ammo Box
in that order.
4 Monson Model 15's
1 Palmer FB 15
1 Rossi 357 Model 92 (lever)
1 CZ 75B
Supporter
Range Officer
Range Officers
May 2, 2009
Offline
If I had to take a quick guess... Pull the cylinder off and set it aside. Put just the crane back in and the sideplate back on.
See if you have any foreward/aft movement of the crane in frame. If you do, you need to tighten up your crane lock a little. This will remove the slop in this area.
SHOOT
November 12, 2011
Offline
With the difference coming between SA and DA I would suspect a slightly weak hammer spring. I have often induced this problem with over zealous trimming. Simply evaluated and rectified by shimming the spring length, probably less than 1/4 inch. It can be slowly dialed in by stacking small (same dia. as hammer spring) washers until realiability returns.
Just a thought.
1 Guest(s)
