if power top fails to work

My car sat for a few years without having the top opened or closed. When I finally tried to use it the hydraulic motor was seized. The oil in it had turned to gorilla glue. I cleaned it out and put it back together but still couldn't get it to open under its own power. It is possible to go top up or down if you slowly pull to open or push to close. I think I may try to unbolt the pistons on mine as described by Oklacarcollecto.