jam problem

[luvmym1 13]

went shooting a couple of times last week and on three occasions my Garand jamed with the round wedged between the bolt and the chaimber back end up. Is this just a thing that happens on occasion or do I have a pressure issue or something. Anybody know? Thanks

[canes7]

Ejector spring perhaps? It may not be ejecting the case fast enough or far enough to get whacked forward by the op rod.

[luvmym1 13]

no the spent case is ejecting out it's the next round thats getting jammed between the bolt and chamber.

[seaninmich]

barrel timing? feed ramp?

[Rick B]

I have seen this with a worn gas cylinder or op rod piston undersized. I have also seen it with a gas cylinder to tight and obstructing the gas port in barrel ever so slightly. Bad op rod spring also will do this. Rick B

[Punch The Clown]

Check the ejector plunger. It should be flush to or slightly recessed from the face of the bolt. If it protrudes it can be removed and dremeled down a few thou or replaced. A worn extractor will also cause the ejector to stick out too far.

[luvmym1 13]

plunger is slightly recessed on the bolt face. The recoil did seem slightly stronger than usual and I am getting a gas blowback in the face. Is it possable the gas cylandar is back too far?

[luvmym1 13]

what is the minimum length the op rod spring should be?

[jak]

what is the minimum length the op rod spring should be?

The op rod spring length should be between 19-3/4" & 20-1/4".

[Rick B]

Blow back means the cylinder or op rod are out of specs unless it is coming from the chamber??? That would not be good. Rick B

[luvmym1 13]

i don't think it's coming from the chamber. I have to gauge the gas cylandar, and op rod to see if there out of spec. It has to be one of those two.

[Orlando]

I had a rifle that did the same thing ,it drove me nuts trying to figure it out. I had the thing apart a dozen times trying to figure it out. I finally put it away and gave up on it. Months later I got it out again and gave it one one look over. One of the ears on the follower rod was slightly bent, must have been just enough to slow things down and throw off timing. I changed it and it functioned perfectly
Probably not your issue but it just shows how the smallest little out of spec part can really throw things out of whack

[luvmym1 13]

Thanks everyone for the helpful tips.