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Piston Nut Staking

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floydthecat View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote floydthecat Quote  Post ReplyReply Direct Link To This Post Topic: Piston Nut Staking
    Posted: Sep 16 2019 at 5:14pm
How odd is it to find a piston nut never staked? I have a Rock barreled action with an Underwood barrel, obviously a rebuild. It has a spanking new nut and piston installed, I am sure never fired since it was installed. I can find no evidence of any previous staking. The gas cylinder is integral to the barrel, so it has to be original.
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painter777 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote painter777 Quote  Post ReplyReply Direct Link To This Post Posted: Sep 16 2019 at 6:17pm
Hi Floyd,
The other day Dan dug up a copy/link to a PS Magazine to show me. We were going on about proper Oiler install.
In the link there was a 1961 dated page that pointed out that as of then it was ok under the right circumstances that a GI could remove, clean and replace the gas piston on his own instead of having to have it done by the Armorer-Artificer.
As long as it really needed cleaning the GI could do so if they followed the new procedure.
Basically using the proper wrench and tightening just past finger tight.
It called for NO MORE STAKING.
Maybe yours falls in to this 1961 or later time frame ?

I'll try posting the illustrations and the page link.

HTH,
Charlie-P777



NO MORE STAKING:



For More Tips Follow The Link to:
PS Magazine, a Postscript to technical manuals and other published maintenance guidance done in a comic book style.....


ETA: Credit to Newsman1 for the Article
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floydthecat View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote floydthecat Quote  Post ReplyReply Direct Link To This Post Posted: Sep 16 2019 at 6:31pm
I did not acquire the action for the barrel, but for the receiver to do a build. The action has been re-parked and it’s solid. Good to hear that somebody may have actually been following instructions by not staking it. Looks to me like the original nut was never staked. This is a 6.08 early 44-ish receiver. I went to my Fred Sanford drawer full of spectacles and never did find a pair that indicated staking-tracks on the cylinder.
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painter777 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote painter777 Quote  Post ReplyReply Direct Link To This Post Posted: Sep 16 2019 at 7:24pm
Fresh nut and piston are a good thing.At Least you know there are no problems there, like the examples below.
I've handled 3 carbines for friends that were ruined @ the gas piston/gas cylinder. All bought (for too much $$ ) at farm/estate auctions far from home.
2 had the gas cylinders badly cracked. The last one the nut was wasted... looking like they had tried to remove it with channel locks. Inner threads were so bad we couldn't chase them to recover. 2 received different barrels, the other had the owner so pizzed off he bent the barrel over his knee in to a U shape. I just recently sold that receiver for him. A WRA last style spring tube 1,126,xxx. I wish I could have got a picture of that bent barrel..... reminded you of a secret prototype that could shoot around corners. It would have looked comical but he wasn't in a joking mood. Him being a ex Pro NBA player @ 6'10" it wasn't like I could take it from him. He tossed it in the back of his pick up as he was leaving.
BTW those barrels bend easier than I would have thought.

Good luck on your build,
Charlie-P777
Living Free because of those that serve.....
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floydthecat View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote floydthecat Quote  Post ReplyReply Direct Link To This Post Posted: Sep 16 2019 at 8:02pm
I am not in the collector class, the shooter class. I was not looking for a Rock-Ola action, but it presented itself at a price well below what I’ve seen barreled actions go for, especially the scarce ones.
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Dirty30Carbine View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Dirty30Carbine Quote  Post ReplyReply Direct Link To This Post Posted: Sep 16 2019 at 9:39pm
why does it seem that so many rockola were rearsenalled with Underwood barrels? I have one, you have one, I’ve seen probably 5-6 others. 
Justan C McKinney
JCMcKinney308@gmail.com
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m1a1fan View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote m1a1fan Quote  Post ReplyReply Direct Link To This Post Posted: Sep 16 2019 at 10:06pm
Underwood was quite the barrel maker and rebuilder of carbines.

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floydthecat View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote floydthecat Quote  Post ReplyReply Direct Link To This Post Posted: Sep 17 2019 at 4:40am
This being a BR only, I don’t have a stock that could speak about where it’s been. After my 3rd or 4th. cup of coffee this morning, I may get a picture of the piston and sight staking. If this receiver ever had a flip on it, it was never staked. It wears an I.R. CO T3 rear with one perfect punch in the right front corner.

As with the Underwood barrels I have had, dates are hit-n-miss. All I see is a 4 and I’m not real sure what position it’s in.
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