Firing pin question

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NLMosin
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Firing pin question

Post by NLMosin »

When I was reassembling the bolt on a 91/30 I just got I noticed that when I line up the groove in the end of the pin with the grooves cut at the arsenal and the pin is flush with the end of the bolt that the spring is completely depressed. I checked how far the pin protrudes with the gauge and it is ok.

But when I dry fire the gun it is noticeably harder to open the bolt. If I adjust the pin a complete turn, again lining up the groove on the back of the bolt, the bolt opens better but the firing pin is not too far out according to the gauge. At the half turn mark the pin passes the test with the gauge but its still hard to open the bolt. Do I have a mismatched pin? Is the spring too long? Any thoughts. Thanks. :vconfused:
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millman
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Re: Firing pin question

Post by millman »

It is harder to open after you dryfire it because you are recocking the bolt when you pull up on the handle. If the pin is flush on the back and it passes the protrusion test, you are good. A little dab of grease on the cocking cams of the bolt will help to smooth things along.

I found some pics of where you want to add grease. This will help every rifle, and not just those with stiff bolt issues.
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steelbuttplate
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Re: Firing pin question

Post by steelbuttplate »

Halfway between the .75 and .95 notches is perfecto. Don't worry about lining up the cuts on the back of the bolt......SBP
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zeebill
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Re: Firing pin question

Post by zeebill »

steelbuttplate wrote:Halfway between the .75 and .95 notches is perfecto. Don't worry about lining up the cuts on the back of the bolt......SBP

If you don't line up those cuts the bolt will not go together more than likely so you better at least be aware of them. Bill :?
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qz2026
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Re: Firing pin question

Post by qz2026 »

I line up the scribed marks flush during reassembly, then set the protrusion. Usually, it's very close.
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steelbuttplate
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Re: Firing pin question

Post by steelbuttplate »

I did not know that Bill, or just never had the problem. I could write a book about stuff I don't know if I had time :bwink: In general, a flush pin with the notches aligned like qz said is where it needs to be, for protrusion. I can't see how it would affect the bolt not opening. Have you tried cussin while you work the bolt? :bigrant: SBP
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Junk Yard Dog
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Re: Firing pin question

Post by Junk Yard Dog »

I did a bolt video, two bolt videos, both links are here on the board in the information section. Mosin bolts aren't rocket science, if they were then the dumb as a box of rocks commies never would have been able to figure them out much less make them.
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NLMosin
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Re: Firing pin question

Post by NLMosin »

Bill's right. The oval part of the firing pin goes through the connector they need to be lined up. When the grooves are lined up the firing pin will go through the connector....I think that's what Bill means... :wink:

The reason I asked was because my spring is squashed flat when the end of my firing pin is flush and aligned with the grooves. Makes me think I dont have the original pin to the rifle...which wouldnt be a stretch for a mosin.
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