Single shot 20 gauge

JasonGTA

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Hey I got a single shot 20 gauge shotgun from my uncle a little while ago and it was not in working order. I took it apart and removed the lever spring and the firing spring. I am trying to get them back in and I have had no luck. It is a bay state model. My fingers are numb because for the last 4 1/2 hours I have been trying to push them back in. What is the trick to this?
 
how about posting a photo or two of the gun (with the area involved, exposed) and the parts involved. Most of us would only be guessing what the gun looks like

cheers mooncoon
 
I'd imagine it's a heavy push spring that sits on an pin and has a cross link that
needs to slide into the receiver tang grooves.
A bigg'un vice, some safety glasses and a wee bit more encouragement.

And on occasion, a wee prayer rather than cuss'in could git them way up above
feeling a might sorry fer yer arse.

Oh, maybe take it to a reputable gun smith...................:jerkit:
 
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OK new problem, I have all the internals in and everything are working fine except for that when I close the barrel it does not latch. The lever also becomes loose when it is down. Is the latch on the barrel not lining up correctly with the one on the receiver?
 
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When you open the barrel and look down in the bell of the receiver, is there a
long flat spring in there?
Not sure if this model used one there or not.
The last Ivor Johnson I puttered with had this flat plate style spring missing.
 
I dont know what you mean by that, but the latch on the receiver can be pushed up about 1mm but if you are not pushing up on it, it just flops back down
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It is the silver thing that does flops down the 1mm
 
Is there a screw on this end of the photo that resembles the other one at the back of the bottom
receiver?

The old Iver Johnson I received as a parts gun had it missing.
It fit in the bottom of the receiver and put weight on the release lever link
shown in the photo when the barrel was closed.

Not sure whether this is the same activity on yours or not.

Haven't done a thorough gewgle-few search on locating a parts schematic
to see what's missing.

You sure you have the one piece with the off set notch right side up ........... or down?
 
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I have to admit to my own ignorance. I have no idea how the latch mechanism works on your gem. If the actuator was snug prior to your efforts, and is floppy now, my guess would be it's not assembled quite right.

Where is the lever/button to actually unlock the action located? Make certain the guide rod is seated where it should be.
 
The top lever was missing when I first got it, but the part the top lever connects too that pushes the barrel lock back when turned was still there, so the barrel was locked tight and could not be opened. I had to punch out the pin that the barrel holds onto at the end of the receiver ( the pin is about 3/8" thick and 1 1/2" long) just to get the barrel off.I tried to push the locking piece that the top lever pushes manually when the barrel was down but that didnt work, i never actually removed the locking piece or anything that connects to it, but there is a screw I found that looks like it probably came off the gun but I cannot find where it goes, the screw looks like an exterior one.
 
More info means better advice. One thing to consider would be the cause of the broken lever (always fun if you're not there when it happens) in the first place. If that mechanism was jammed/whammied already (possibly by your found screw) it gives you a direction to look in. Sometimes it's hard to see inside (dental mirrors are nifty) but is it possibly your found screw held the latching mechanism in place? Look closely at the screw to see if it sheared off, or look for the remnants of it in the mechanism.

The pins in your first pics look very well peened. Are you looking at something someone else has worked on?

If the original issue was that you couldn't open the gem, and required the removal of the hinge pin to get it apart, it's doubtful that just taking it apart would do much to rectify it (other than giving an idea of what's broken).
 
You seem to know how to post photos, toss some more up.
End of the barrel, receiver side.
One from the side too.
There is a link rod that attaches between the thumb lever and
the lower tongue.
Could be bent in the wrong shape?
Just going by memory on the last .410 I puttered with.
 
The pins have been beat pretty hard, the end of the barrel is cut because the end 3/4" was cracked. The lever there is homemade because the original was missing and I could find the part online
 
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