Long Branch Lee-Enfield No. 4 Mk1 Safety Group Disassembly & Cleaning
Posted Jun 18th 2012 | By:
Does your bolt stick on your Long Branch Lee-Enfield No. 4 Mk1? Mine did, and this is how I fixed it. Someone took apart the safety group and reassembled it wrong, causing the bolt to open but be sticky.
This is what the safety group looks like still attached to the rifle:
First thing to do is take the screw out on the left:
This is with the screw removed:
Once the screw is taken out, the "retainer" can come off:
Here it is with the "retainer" off:
Next, pull the "safety arm and pivot" straight off. It should come out easy, not requiring considerable force:
Next step is to take the "pivot" off of the "safety arm". With the end of the "safety arm" in your hand and the "pivot" facing towards the right, twist it to the right and it will come off:
Now we can clean the threads and all the old oil/grease off of the safety group and the rifle:
I wiped the rifle off with a rag/old t-shirt with some Hoppe's #9 on it then dry it off. Brush the threads out of the "safety arm" with a brass brush or a toothbrush then oil it. Twist the "pivot" back onto the "arm" and continue twisting it off and on to spread the oil out. For this, I used Hoppe's Elite Gun Oil:
Now the tricky part to this is, the pivot has to be twisted all the way onto the safety arm and both lined up with the holes in the rifle precisely:
The reason it has to be twisted all the way on is, when the safety arm is in the forward (off safety) position, it is twisted all the way onto the pivot. When it's in the rear (on safety) position, it is untwisted from the pivot. If not properly aligned, both nubs on the pivot and safety arm drag the bolt, thus causing the stick bolt issue, and in some cases, no working safety.
So with that out of the way, now we can reinstall the retainer:
And the screw:
Here is the safety arm to rifle ratio:
I'll elaborate a little more on what I talked about now with this picture. The pivot will move back and forth on the safety arm. Here the rifle is off safety and in the forward position. Once it is in the rear position, safety on, the pivot is all the way inside of the rifle and the nub on the safety arm moves into a groove on the rifle cocker on the rear of the bolt preventing it from opening and the trigger from firing.
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