
I've been spraying it with penetrating oil everyday for the last 6 weeks. Today I finally decided it was time to start tearing it down and get it working. Not a single fastener, other than 2 cotter pins came free. Every bolt either broke, had to be chiseled off, ground off, or drilled through.
Good news is there are only a few very small holes in the sheet metal. Everything is apart except for one driven gear for one of the seed plates. I was surprised to see that the gears actually rotated on cast iron. I was expecting a bolt with a shoulder, or something similar, but it was cast iron on cast iron, not even a grease fitting.
Here are some pics of the progress.