I was searching and came upon this post. Couple of questions and comments.
Does anyone know how to replace the cylinders for the power top? Sequence of events since I will embark on this project this weekend?
Secondly, when I bought my car the top was operating in manual mode. I then realized it was a power top, and decided to get it working since all the components were there and the power switch was just disconnected. To Bjorn's point, for a period of time I was manually putting the top up and down. If you do it from the drivers side of the car and not in the center, over time, the top cracked a weld from the non uniform force applied up and down. I had it rewelded, and had to put the top up by holding the center of the top. When my system was full, the top worked very quickly, but I used a full size motor from a swap meet for $40 bucks. Just drilled two holes in the motor brackets to mount with the rubber dampers as the shorter pumps do. Long story short, it's cheaper, but in my case more of a pain from other issues.
So if anyone has replaced the cylinders I would love to hear how it's done from someone who has the experience.