336 Problems

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  • Last Post 11 December 2010
3100Loren posted this 06 December 2010

Hello, I recently came upon a good deal, or at least I thought so at the time. 

I bought a Marlin 336 .30-30, late 1940's vintage.  Looks good and shoots well but”¦

Only about 80% of the time.  It strikes primer, and leaves a good “dimple” and  when I try the same cartridge in another rifle it there are no problems.  It is tight and the lever closes completely; to date I have replaced all the springs and both parts of the firing pin.  I even took it to a gunsmith who pronounced the problem cured.  However, the problem persists.  Any suggestions are appreciated; I have tried Remington, Winchester and Federal primers, with similar results. 

Thanks,

Loren

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JetMech posted this 06 December 2010

Loren,

Can you post a picture of a cartridge head/primer that failed to fire?

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3100Loren posted this 06 December 2010

Bill,

I don't have a picture to post.  Can't get out to the range before the weekend, I am sure I'll have something to take a picture of then.

Thanks,

Loren

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Tycer posted this 07 December 2010

Post this over at www.levergunscommunity.com

You'll get the correct answer.

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Ed Harris posted this 07 December 2010

I'll bet there is oxidized oil, grease or some kind of “gunk” in the bolt face, or else you have a broken firing pin shaft and the parts are moving around loose inside the bolt head so that sometimes they line up, and at other times they don't. Gunsmith should completely disassemble the bolt, clean and evaluate the parts, replace any broken ones, degrease, dry lube and reassemble. This a fairly common problem with older Marlins which have been “oiled to death” and dry fired alot. Easy fix.

If you have already replaced both halves of the firing pin and the springs, I expect there is still some hardened, oxidized oil, dirt or other debris in the bolt.  Disassemble, wash in solvent, run a pipe cleaner through and blow out with high pressure air, then check driven protrusion and try again.

73 de KE4SKY In Home Mix We Trust From the Home of Ed's Red in "Almost Heaven" West Virginia

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JetMech posted this 07 December 2010

Ed Harris wrote: check driven protrusion and try again. Ed, is about .050 correct?

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Ed Harris posted this 07 December 2010

.050 is more than ample.

73 de KE4SKY In Home Mix We Trust From the Home of Ed's Red in "Almost Heaven" West Virginia

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3100Loren posted this 07 December 2010

Mr. Harris, Thank you very much, I'll give it a try and let you know how it comes out.

Mr. Bill, Thanks to you too...I like the hat, looks good this time of the year.

Loren

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jimkim posted this 08 December 2010

Dollar Bill wrote: Ed Harris wrote: check driven protrusion and try again. Ed, is about .050 correct? Only 5%? I was thinking the same thing, and when I'm right, I'm correct 100% of the time.

I was having the same problem, and cleaning the bolt fixed everything. By the way, I used Ed's Red to do it.

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canalupo posted this 08 December 2010

I may be late for the game but had similar problem with a remington 700. It accumulated rust near firing pin hole. I put a piece of fine emery cloth on a long wooden dowel and polished inside of bolt. Used some teflon grease film on inside of bolt rather than any oil. Fine shooter now.

Bob D

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JetMech posted this 08 December 2010

jimkim wrote: Dollar Bill wrote: Ed Harris wrote: check driven protrusion and try again. Ed, is about .050 correct? Only 5%? I was thinking the same thing, and when I'm right, I'm correct 100% of the time. You're a funny man, Jim.  :wnk:

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norm posted this 11 December 2010

on 1940 vintage Marlins there are two positions for hammer spring tension. Pull the buttstock off and you will see what I mean. I had similar problems with one of mine and setting the spring to higher tension cure the misfire and also increased trigger pull alittle.

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