Thread: Marlin Ballard restoration

Originally Posted by akaroa1

Took the complete rifle to my friendly local gun genius to stip down and brain storm the one major mechanical repair needed

This pivot pin hole is egged out at the bottom due to the main spring pressure upwards
These breech blocks are pretty tricky to disassemble for cleaning so my guess mostly guys just stuck more oil in and never cleaned inside
So once case hardening wore through at bottom it would have gone quickly
It's 0.5mm out of round at the bottom

Attachment 208197

Back edge has cracked as it got deeper and through the hardening
But only a small part has spread out

Attachment 208201

The pivot pin is still in tollerence because the machining marks are still visible so that gives me a size to work with
But the 0.5mm gap looks and feels obvious and it throws the half clock and trigger sear out of timing

Attachment 208202

But at least it is a complete rifle with all its original parts so know what it should be like

But how to get it there ?
Very tricky piece of welding to build it up and not take the temper off the working surface of the sear

Would it work to make a step-down pin for the hammer so that it would be a smaller diameter than the original, this would allow the existing hole to be bushed with a steel bush bronzed in place, or better a phosphor bronze bush silver soldered in if this was strong enough ?

Originally Posted by Moa Hunter

Would it work to make a step-down pin for the hammer so that it would be a smaller diameter than the original, this would allow the existing hole to be bushed with a steel bush bronzed in place, or better a phosphor bronze bush silver soldered in if this was strong enough ?

No
The pivot pin thread wouldn't pass through into the other side where is screws in