Uniflow steam engine as it looks now

This is the "finished" engine.

The janky exhaust linkage is visible. The exhaust was the intake when it was a air compressor. I bought it as a compressor at the flea market, and used it as one for about 8 years. it really needs a much heavier flywheel. It will run at about 15 psi, and starts jumping up and down at about 75. I built it in about 2 days.

Done