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Old 11-02-2019, 10:07 PM
Millman
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Marlin help needed



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A friend of mine brought me a JC Higgins Ranger 103-13 aka a Marlin Model 81 that will not feed correctly. I have figured out that the firing pin is broken which is the cause of the feed problem. It wont extract out of the way of the incoming cartridge. I also think that the cartridge guide spring is missing, but I am not sure of how to replace this part. Does anyone here have a working example that they can take photos of so I can compare a working example to what I have here?
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Old 11-03-2019, 12:20 AM
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The firing pin consists of a rear striker and a rear and front firing pin with a return spring. The front of the pin can get mushroomed with use, preventing the pin from retracting into the bolt face.
The solution is a new front pin and possibly a spring also.
The cartridge guide requires the barrel to be separated from the receiver tube to replace it.
Pics of the cartridge guide of my rifle:


In the illustration below, the firing pin is #12 and the spring #14:

Numrich usually has the pin and spring available as a reproduction.

http://www.gunpartscorp.com/Manufacturers.htm
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Old 11-03-2019, 01:12 AM
Millman
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Thank you Ol Shooter. I have determined that the firing pin is broken and needs replacing. The guide spring is what has me flummoxed. I see from your pics how it is supposed to be. The thought of removing the barrel troubles me. How hard is that to do? I am a machinist, with access to a full machine shop, but this rifle is not mine, and I don't want to mess it up.
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Old 11-03-2019, 08:34 AM
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The guide spring is for the feeding of shorts. This spring is often broken but will not effect the use of long rifle rounds.

Mals
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Old 11-03-2019, 01:14 PM
Millman
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Quote:
Originally Posted by mals9 View Post
The guide spring is for the feeding of shorts. This spring is often broken but will not effect the use of long rifle rounds.

Mals
Thanks Mals.
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Old 11-03-2019, 02:57 PM
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That was not my experience, when mine broke it would not feed long rifle.
I have only owned the rifle since 1963 so maybe some will work without the part.
Guess you'll find out.
The barrel is held in by a tapered cross pin, and sometimes they are a bear to get out.
My Sears 43DL rifle had splines on the barrel and receiver tube for alignment.
Once the pin was removed I chucked the barrel in a soft vise and drove the receiver off the barrel using a mallet and a babbitt bar in the ejection port opening.
The spring fits into a machined recess in the barrel.
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Old 11-04-2019, 08:39 AM
Millman
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Thanks again old shooter. I think this one is going to need the spring to feed right. With the firing pin removed and not getting in the way, the bullet still sits to high to feed straight in. I can redirect it a little with my thumb (like the spring would) and it goes right in.
I think I have enough info now to report to the owner, and see how they want to proceed. Thanks everybody.
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