Here's an updated version:
http://files.filefront.com/Tomi+Engi.../fileinfo.html
Outer two rockers used as outlet, center as inlet. The coils have been replaced with a (quick and dirty) mesh animation. In this video, I've used Sledgehammers suggestion for piston sequence.
Unfortunately, since the capture framerate is fairly low it doesn't look too smooth in the video, but it is in game...
Oh, and don't listen to the sound too much either. It does not run in sync with the animation at all. It's purpose for now was just a bit of ambience...
