mosin problem!

ArtyMan

ArtyMan

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Hey all,

I recently came across a problem with a 91/30. When cocked, the rifle wont fire, the bolt simply wont move, no matter how hard I pull the trigger. naturally I thought this a bolt problem. However, when the bolt is taken out and placed in another mosin, it works and cycles perfectly. So then I thought it must be the rifle itself, so I got another mosin bolt, and it fired and cycled fine in the problematic 91/30. Any idea what caused this? and what would remedy this?
Thanks a lot
 
ArtyMan said:
sorry forgot to mention that, the rifle is complete matching, minus bolt.
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If the bolt isn't matched to the gun, it could be that the sear isn't disengaging. In fact, if everything else is working, then that's really the only thing I can think of.

Does the trigger move at all when you pull it and the non working bolt is in place? Does the bolt do anything? I'm thinking it could be a combo of a tall sear and an overrsized bolt?

That or there's a bur somewhere in it all.... does it do this consistantly, sometimes; does it fire consistantly with other bolts etc?
 
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the trigger pulls fine with the non working bolt, only no click. the bolt itself does nothing. I fully stripped the bolt and de-gunked the cosmoline out of it, CLP'd it lightly and re assembled it.
 
Can you tell if the sear is dropping completely in the gun? I'm trying to figure out if the sear isn't releasing the bolt, or if the bolt is hanging up on something else.

Have you pulled both the bolt and the gun completely apart and checked all the functions? It may point something out if you try it without the stock on.
 
gyates93 said:
If this is the case, and the bolt from the toubled gun worked in the other gun, would there be any harm in just switching the two? If they're mismatched anyway..
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For shooting purposes there is no problem at all, the 'troubled bolt' works well in the other, and the other perfectly well in the 'troubled rifle'. One is a completly matching unissued polish M44, and the other a 1942 all matching (minus bolt) izhevsk 91/30. its the mismatched bolt in the 91/30 thats giving me trouble. I would just like the russian bolt to work in the russian rifle and keep the M44 all original.
 
H Wally said:
Can you tell if the sear is dropping completely in the gun? I'm trying to figure out if the sear isn't releasing the bolt, or if the bolt is hanging up on something else.

Have you pulled both the bolt and the gun completely apart and checked all the functions? It may point something out if you try it without the stock on.
Click to expand...

AH! something i never thought of! I will definatly strip it fully tomorow and take a good long look at it, thanks for the input!
 
I've fully stripped it and can't tell if the sear is completly dropping, but the bolt isnt catching on anything else from what i can tell.
 
H Wally said:
If the bolt isn't matched to the gun, it could be that the sear isn't disengaging. In fact, if everything else is working, then that's really the only thing I can think of.

I'm thinking it could be a combo of a tall sear and an overrsized bolt?
QUOTE]


If it is this, is there any way to fix this?
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I would suggest taking it to a good gunsmith if you don't already know how.

On the other hand, if you're sure it's an oversized sear and bolt, you can do it with a very fine emery file, maintaining the same angle on the edge, remove a tiny tiny bit and recheck it. If you remove too much you'll end up with a very unsafe gun though, so it's best to know what you're doing, and know that that is the problem rather than something else. If you do end up working on the sear, it's almost more of a polish than anything else, so you really don't want to remove a lot of material at a time!

On that note, are there burrs on the sear or the bolt? I'm wondering if it's catching.

Also - pics would help a million. If you have a camera and can get some high def macro setting pictures someone might see something that is causing it.

Edit - with a sear problem, IMHO if you're unsure, take it to a gunsmith, a reasonable one may just take a look and tell you what's wrong. The reason I'm being hesitant is that I don't have much experience with sears, but do know that once the material has been removed, it's gone, and could result in a gun that could go off if hit hard etc, which no one wants.
 
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