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Extractor Spring Free Length

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floydthecat View Drop Down
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Joined: Oct 13 2016
Location: Mississippi
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Points: 1996
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    Posted: Nov 01 2017 at 1:56pm
Weather is bad and I'm bored. When I was younger, this would be good weather to watch a porn flick. At my age...it's now gun-porn.

Anybody have the correct free-length measurement of a spec. extractor plunger spring? I have a couple that measure .336 and .342 respectively. I know one of them is definitely bad, but I got it tossed-in with another one that might work in the parts bin...I think. I should have measured the one I put in the gun to correct the extraction problem I guess.

I've ordered a couple, but I would like to know what a good one is suppose to measure.
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Charles View Drop Down
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Joined: Mar 21 2016
Location: Maryland
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Charles Quote  Post ReplyReply Direct Link To This Post Posted: Nov 01 2017 at 2:10pm
.416"  10 coils
Charles
Co B 1st Batl.115 Inf. Reg.
29th. Divi.
4.2 Heavy Mortar Co Retired
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floydthecat View Drop Down
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Joined: Oct 13 2016
Location: Mississippi
Status: Offline
Points: 1996
Post Options Post Options   Thanks (0) Thanks(0)   Quote floydthecat Quote  Post ReplyReply Direct Link To This Post Posted: Nov 01 2017 at 3:59pm
Thanks Charles. Looks like I have a couple to toss in the can. Glad I ordered some new ones. I plan to also replace the new-old-one I have in the carbine that had the extraction issue as well.

I learned early-on the first place to start with extraction issues is the extractor claw and the spring. I purchased a used commercial carbine on the cheap and discovered it would not extract, which is maybe why I got it on the cheap. It had a longer plunger and a shorter spring as compared to the USGI spec. I have only found that combination in one carbine and it was obviously done to lower the extractor tension.
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