Garand Failure - Help!

chopper 1

chopper 1

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Gas piston for a winchester Garand - anyone know where I can get one ? The round sealing thingamajig at the end of the spring broke into small chunks
 
Umm... what is a round sealing thingamajig?

Garands are all interchangeable, so whatever your thingamajig is, just buy a replacement from Marstar, e-bay or wherever and swap it in.
 
And stop using factory .30-06!

sounds like you need a new op-rod, but given the vague description I could be wroing.
 
Which Part? (Look at the botom view in the image).

M1%20Garand%20Gas%20Systems.jpg
 
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Most milsurplus 30/06 is loaded with 147 to 150 gr bullets and powders that have a burn rate simular to 3031/4064/4895. Anything slower and heavier than surplus ammo your asking to ruin a perfectly good Garand!
 
Help

I believe it is called a gas cylinder lock screw with poppet valve - the valve at the end of the spring is in small pieces. Numrich doesnt have any - Fulton will not ship to Kanada
 
skirsons said:
You shouldn't use factory 30-06 in Garands? Tell me more.
Click to expand...

Although I don't own a Garand, as a handloader I understand pressure curves. At the time when Garands were first in use, 30-06 ammunition used a powder with a medium to somewhat fast burn rate for a rifle, and usually a 150 grain bullet. Most factory hunting ammunition uses a slow burning powder and a 180gr bullet. The modern rifles are designed for slow powders, but with the Garand which has its gas ports out towards the muzzle, the slower burning powders will still be burning at or near the gas ports, instead of being burnt out half way to 3/4 way up the barrel. If the powder is still burning at the muzzle then there will be excessive pressure on your op rod, usually causing damage. IMR or H4895 is a good powder for your Garand and a lighter bullet of 150 to 165 grains. Other medium burning powders will work as well.
 
billybob said:
Milsurp is correct---Only use 150 grain factory ammo, Federal, Win., Remington etc. Nothing with a heavier projectile because of the possibility of the factory using a slow burning powder which on a Garand will give your rifle extremely high port pressures. Which will either break your operating rod, or bend it, or put your bolt thru the back of the reciever. I have repaired Garands that have had all those things happen to them. If you have used the wrong ammo and you got away with it, you have an Angel on your shoulder. Or a very worn piston on the end of your operating rod. If you are going to replace your piston ,make the new piston out of stainless steel, and silver solder it on. Offhand I've forgotten the dimensions. Fellas please be careful and do some research on your rifle before you use it! BB
Click to expand...

gas piston diameter: .5250-.5260 in.

BB
 
oh, the gas plug. No biggie. Try Marstar - they ought to have a replacement for you. Also, I imagine Sarco would ship that part.
 
Happy Garand

Thanx to all - A new poppet valve is on the way and my buddies rifle will soon be back in action. This is the ultimate value of this site , when all of Kanada's expertise is available to find the stuff to keep us going.
Again thanx to all tne nutz.
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