Iver Johnson 30 carbine gas block

dppatrol

Hi,I was given an iver johnson carbine,that looks pretty well taken care of,but when i took it to the range,after about 10 rnds,the bolt didnt close,so i emptied it,took it home then apart and the gas piston nut had come almost completely out.the threads didnt look so hot,especially on the nut but also in the gas block,I ordered the nut,piston and wrench.my question(s)are these:1 is this common,2 how snuggly do i tighten the gas piston nut,3 if this sounds like a serious problem,what remedy?I was going to give it to my 12 yr old god son for hunting but not if its unsafe.thanks

Emmett Dunham

This is common on the M1 carbine or your clone in this case. The GI rifle had the system staked so it would no come loose and they still will back out. I would tighten the nut down wrist tight don't over tighten it, now that you have the wrench you can check each time you clean it and keep it tight.

mark christian

The problem is not uncommon and the staking already mentioned is the only way to avoid the problem, but it is not 100% fool proof.

dppatrol

thanks for the responses