Spent a lot of time cleaning up the brake assemblies. I was able to undo the awkwardly located brake reservoir caps. It's no surprise that they were custom made for the plane. They have a tiny breather hole down the centre and a ball within the shank of the cap itself. When the caps are inverted, the ball drops into the way of the breather hole, preventing the brake fluid from leaking out. In normal orientation the vent is open allowing the reservoir to breath. I also spent some time removing the paint and surface rust from the front rudder pedal assemblies. I'll paint them next. While I was at it, I couldn't resist polishing the brass fittings that connect the rudder pedals to the bar. They had 50 years of oxidation and grime on them but they just begged to be polished up.