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The Range
Gunsmithing & Repairs
Need help with a Winchester 74
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<blockquote data-quote="Ahall" data-source="post: 3912620" data-attributes="member: 49426"><p>Interesting.</p><p>The gun does not cock on the second shot, but first round is ok.</p><p></p><p>When you work the bolt the first time, it cocks, and the cocking lever is on the right side of the bolt, so you probably cock it with your trigger hand.</p><p></p><p>Then you pull the trigger and it cycles, but does not cock.</p><p>1) does the bolt travel far enough to fully cock the gun? This could be dirt/grim, but that seems to be ruled out.</p><p></p><p>2) Is the disconnector doing its job - a semi auto should have a device that allows the firing system to reset with the trigger pulled. Your gun is striker fired, so the striker is not being held back when the gun cycles with the trigger pulled. Loose fit could result in too much movement and the striker not catching, or a small misalignment in the disconnector preventing it from doing its job.</p><p></p><p>From the videos it looks like the gun is wood stocked and the trigger assembly is not mounted to the receiver. </p><p></p><p>Years ago I worked on a single trigger LC Smith shotgun that had trigger problems. Over tightening the stock bolt behind the trigger set pulled it up just far enough to change the sear engagement. Ware and stock shrinkage were also factors.</p><p></p><p>If the trigger and disconnector are in the stock, shrinkage and ware in the stock can change the alignment of the components and cause malfunctions. Play with the tension on the bolt that mounts the stock and see if it changes anything. A few paper shims under the receiver may also be useful for diagnosing the problem</p><p></p><p>One other thought - most of these old 22s are mounted to the stock with a screw that has a round bottomed slot. Those were designed to use a standard US coin as a screwdriver for disassembly (I have a few screw driver bits with coins brazed to them for this application). The thing is the gun was designed for a kid or young adult and they can't get that screw very tight with a loose nickel. Overtightening should be on the list of things to check with this gun.</p></blockquote><p></p>
[QUOTE="Ahall, post: 3912620, member: 49426"] Interesting. The gun does not cock on the second shot, but first round is ok. When you work the bolt the first time, it cocks, and the cocking lever is on the right side of the bolt, so you probably cock it with your trigger hand. Then you pull the trigger and it cycles, but does not cock. 1) does the bolt travel far enough to fully cock the gun? This could be dirt/grim, but that seems to be ruled out. 2) Is the disconnector doing its job - a semi auto should have a device that allows the firing system to reset with the trigger pulled. Your gun is striker fired, so the striker is not being held back when the gun cycles with the trigger pulled. Loose fit could result in too much movement and the striker not catching, or a small misalignment in the disconnector preventing it from doing its job. From the videos it looks like the gun is wood stocked and the trigger assembly is not mounted to the receiver. Years ago I worked on a single trigger LC Smith shotgun that had trigger problems. Over tightening the stock bolt behind the trigger set pulled it up just far enough to change the sear engagement. Ware and stock shrinkage were also factors. If the trigger and disconnector are in the stock, shrinkage and ware in the stock can change the alignment of the components and cause malfunctions. Play with the tension on the bolt that mounts the stock and see if it changes anything. A few paper shims under the receiver may also be useful for diagnosing the problem One other thought - most of these old 22s are mounted to the stock with a screw that has a round bottomed slot. Those were designed to use a standard US coin as a screwdriver for disassembly (I have a few screw driver bits with coins brazed to them for this application). The thing is the gun was designed for a kid or young adult and they can't get that screw very tight with a loose nickel. Overtightening should be on the list of things to check with this gun. [/QUOTE]
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