Update:
Wednesday was very productive. Dropped by early with a bag full of tools and blood in my eye. That firing block was gonna come out or else I was going to apply harsher language and more animal brute force.
You may recall the firing block. It's the wee box on the arse end of the breech.
Last week we pulled out the Firing Block Catch, switched the safety to "safe", and attempted to rotate the block clockwise as per the manual. Should go as easy as this:
(skip to :32)
[youtube]bfwwEdR7eLo?t=32[/youtube]
Sadly, the combined force of a brawny WO and me shouting encouragement accomplished nothing. She was on there as tight as if she was welded. I retired to consider strategy. Fast forward to this past Wednesday, when I returned to the battlefield with a soft-faced hammer and a plan.
Scribed around the perimeter of the piece with a dental tool, applied penetrating oil, waited five minutes, whispering soft words of affection to her the whole time. Switched the gun to "safe", pulled the disassembly catch rearward, applied torque. Nothing. Hammer time.
Gentle taps showed slight progress. Good. Not breaking stuff. Hit harder. Rotation.
More tappage. Interrupted threads disengage, block is free. Feeling pretty Indiana Jones about now.
There she is. About two pounds.
Some rust present, but the lads who last had her apart were generous with the oil and grease. Zero pitting or problems, just dried grease and paint adhesion.
Flushed with success, we move to the breechblock itself.
After tapping out the Breech Operating Handle Buffer, the handle itself is free to come all the way down, which allows the breech block to drop off the bottom of the gun into the hands of a helpful MWO who happened to be wandering by. Thanks again, mate.
Looks horrifying, I know, but most of that was dried grease and oil and came off with gentle scraping using a razor blade. There's very little if any rust on that breechblock. Weighs a good 60 pounds.
Underside of the block, in case you dig numbers. Many stamps on this old girl. The cartouche aficionados among us would be thrilled.
I also pulled the firing linkage off the port side of the breech ring - two heavy brass fittings and a big ol' steel pushrod to run the whole train, all of it painted green.
Took the firing linkage and firing block home for teardown, cleaning, paint stripping, relubrication, and affection. Teaching the CFSC this weekend, so I lose two days, but come Monday I should have more pics.
Quick question - I want to get that grisly green paint off the entire breech end of things. They were operated in the white, and in combination with the heavy brass fittings, probably looked pretty damned regal. Any suggestions re: paint stripper that's kind to steel and brass?