In this video I help Andrew recover his Pettibone 25 multikrane. When we do recover it, the oil was trapped in the cylinders (even after letting it sit). The engine hydrolocked and would not run right after. I ended up getting the crane from Andrew and fixing it up to use with building my own house and other various projects.
Link to Andrew's video https://www.youtube.com/watch?v=VO6p8-EZwa4&t=375s