11-87 double feed

Ruffed Grouse

Ruffed Grouse

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Hi,

I have no experience with gas shotguns. My friend has an 11-87 20 ga that is double feeding, i.e., when cycling, two (actually three, but the third one only gets part way out the the magazine) shells come out the the magazine, and so it jams and doesn't close.

So what do we look for first to identify the problem and fix it?

edit, I originally wrote maybe tripple feed, but actually I don't think that's the case. The third shell is that sometimes the shell in the chamber doesn't get ejected, so that's the third one in there.

RG

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As the Action Bar Assembly moves to the rear, it moves the Feed Latch into the wall of the receiver and allows a shell to feed. The Interceptor Latch pivots to stop the 2nd shell from feeding.

Check the Interceptor Latch Spring to make sure it is in place. Check the Interceptor Latch for side-to-side wobble, if there is then install a thicker Interceptor Latch Retainer.
 
Hi,

Thanks about the interceptor latch. When you open the action - the interceptor latch moves out of the way. I figure that is how it is supposed to be, as that lets a shell come out of the magazine. But as long as the action is open, the interceptor latch stays open - is that right? It seems to be that by it staying open, that is why two shells are coming out? As I said, I don't have any experience myself. I'll look at another gun and see how it works, though, but any guidance on how this 11-87 is supposed to work would still help.

Thanks,

RG

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I think you have the IL confused with the Feed Latch. The FL moves sideways and the IL moves up and down.

The FL keeps all the shells in the magazine, then allows them to feed. The IL pivots and stops two shells from feeding at the same time.
 
Thanks,

We think we really found the interceptor latch. We compared it to an 1100 that we have. Rather than the spring being weak, it is very stiff compared to the 1100. It does move, and we put some silicone spray on it. It is not outright stuck, and as far as I can tell there is no rust or anything.

Is there anything in particular that would be making the interceptor latch too stiff and would that be the problem at all?

RG

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Yes, same as the 1100, and I believe that the parts interchange within gauge also.

There is a "tail" with a groove on the IL that the IL Spring rides in. Sometimes the spring gets trapped between the IL and the receiver wall, a sign of a worn IL Retainer. Too stiff is not an issue, binding would be.
 
You mentioned that the old shell doesn't always eject. Before you get too involved, are you sure the gun just doesn't need to be completely taken apart for a good cleaning. By that I mean removing the bolt, trigger assy. and recoil spring that is inside the stock aside from removing the barrel for the regular cleaning of the gas components. And then use very little lubricating oil (some say leave everything dry) unless you are storing for the winter.
 
Maybe we'll tackle a full cleaning tomorrow. I'm not sure either of us knows too well how to deal with the gas system (I'm much more a rifle owner, own only an 870 myself), but we'll read up on it.

I was having a hard time on either gun figuring out when during cycling the interceptor latch was supposed to move and how. What is its motion supposed to be, and at what stage of the bolt moving back then forward it to supposed to move?

RG

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The Disconnector moves the IL and the Action Bar Assembly moves the Disconnector. As soon as the ABA starts it's rearward travel the left rear of the ABA contacts and moves the Disconnector causing it to pivot and move the IL.

With the action closed, push upwards on the carrier assembly, just get it out of the way so that you can see things work.

Slowly open the action and you can watch the ABA make contact with the Disconnector and in turn watch it move the IL. You can also watch the ABA press the Feed Latch into the wall of the receiver.
 
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