m1 op-rod dismount

[fisi]

what is the normal cause of an m1 garand operating rod dismount????
the bolt out of spec or the op rod out of spec. it has only happened twice
while firing in the last year............

 

[ocabj]

It's probably the oprod. Check the corners/edges of the cam area on the oprod (where the bolt lug locks into during operation). If those are worn, the oprod will jump off the bolt/track.

 

[10X]

M1 Op Rod Dismount

Assuming we are dealing with USGI parts, it might also be a bent Op Rod.

You can test that. Take the trigger group out of the stock. Take the barrel and receiver group out of the stock. Remove the spring (from the operating rod) and follower arm.

The test. Hole the receiver with one hand and the muzzle end with the other hand. Tilt the muzzle up 30 degrees slowly. The weight of the bolt and rod should drop the bolt to fully open with the Op Rod contacting the front of the receiver. If it drags and does not open the Op Rod is likely bent. It would be very unusual for a bolt to be bad.

Likewise by tilting the muzzle down. The weight of the bolt and Op Rod should close the bolt. If it drags, the op Rod is likely bent.

Solution: new USGI operating rod.

I also agree with the previous post that wear on the Op Rod could be the problem. It would have to have a lot of rounds through the rifle with poor lube to do that.

 

[dch1978]

I have read on this site that at least some of time the op rod will dismount during loading. If this is the case you are probably "rocking" your had as you release the op-rod handle. (taken from others' writing)

I could not find the exact thread as there are 156 or so related to "Garand".

There is a lot of extremely good information already archived that a search will turn up. Probably everthing mechanical about firearms has been discussed in a past thread.

Check out the search, it is more important than the new posts.

Have a great time with a great weapon.

DCH

 

[30Cal]

Regardless of the cause, it will get progressively worse as the camming surface inside the hump of the oprod gets rounded over as it rides of the bolt lug.

Ty