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  #1  
Old 04-07-2021, 02:27 PM
jwitten jwitten is online now
 
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Default Garand not cycling

I had a chance to shoot one of my garands today for the first time. The spent casings were not ejecting. From a quick research, it seems it could be a gas piston problem. Anything else? Ive cleaned and greased it. I tried the Ammo bought from cmp, and garand specific ammo I bought elsewhere as well. It s a May 1945 gun with original barrel. Because of this, I bought a correct uncut oprod from someone on the forum. I may try switching op rods and seeing if another will work, but I am out of town so cannot yet.
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  #2  
Old 04-07-2021, 02:37 PM
Jeremy2171 Jeremy2171 is offline
 
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Did the empty come out of the chamber but not leave the bolt face? Or did it partially open and reload the empty?

Oprod piston should be min .525. Try a different rod...and/or cylinder from another "good" rifle.

That will point you in the right direction.
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Old 04-07-2021, 02:38 PM
jwitten jwitten is online now
 
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To be more specific, I can pull the op rod back by hand to eject the old casing, and it loads the next round fine. Seems it does not have enough umph without cycling it by hand.
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Old 04-07-2021, 02:43 PM
ebeeby ebeeby is offline
 
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Is gas cylinder plug tight?
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  #5  
Old 04-07-2021, 02:46 PM
jwitten jwitten is online now
 
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Yes, I hand tightened it and it is tight
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  #6  
Old 04-07-2021, 02:51 PM
Fenris_Bane Fenris_Bane is offline
 
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Quote:
Originally Posted by jwitten View Post
Yes, I hand tightened it and it is tight
Is it a pop-it valve? Is it closing fully?

If it is, then it is likely the OP Rod piston or the gas cylinder is out of spec.

The other problem my be fouling in the gas port in the barrel.

Quote:
Originally Posted by jwitten View Post
Because of this, I bought a correct uncut oprod from someone on the forum. I may try switching op rods and seeing if another will work, but I am out of town so cannot yet.
The uncut OP Rod piston may be out of spec. Try another rod.

Last edited by Fenris_Bane; 04-07-2021 at 02:53 PM.
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  #7  
Old 04-07-2021, 02:54 PM
jwitten jwitten is online now
 
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Im not sure what type of valve.. how do I know?
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  #8  
Old 04-07-2021, 02:57 PM
Jeremy2171 Jeremy2171 is offline
 
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Quote:
Originally Posted by jwitten View Post
Im not sure what type of valve.. how do I know?
Is the gas cylinder lock "screw" (not a plug) got a - or a + shape on the front. Is it tight?

Right now you have the classic symptoms of gas system wear...assuming everything is tight and snug.
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  #9  
Old 04-07-2021, 03:07 PM
jwitten jwitten is online now
 
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Quote:
Originally Posted by Jeremy2171 View Post
Is the gas cylinder lock "screw" (not a plug) got a - or a + shape on the front. Is it tight?

Right now you have the classic symptoms of gas system wear...assuming everything is tight and snug.
Plus sign. Has a P and a triangle.
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  #10  
Old 04-07-2021, 03:10 PM
Jeremy2171 Jeremy2171 is offline
 
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Quote:
Originally Posted by jwitten View Post
Plus sign. Has a P and a triangle.
Pull it and make sure it's fully closed and not cracked.

Next step is oprod piston and gas cylinder.
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