I recently completed the Corliss engine, published here a few years ago

https://modelengineeringwebsite.com/Corliss_engine_drawings.html

using Mr de Waal's drawings and following Mr Cutajar's description.

https://modelengineeringwebsite.com/Corliss_engine_build.html

It works perfectly.

I made some mods to the original project. I used aluminium for the cylinder, with steel sleeves for valves and piston. I didn't like the spoked flywheel and changed it, also I made an auxiliary pulley because I spent all my working life in a power station and I want to couple an alternator on a separate base plate, with transformer, control panel and so on, to remind me of the old good days.