This 320x240 Quick Time movie is 8.5M large, so it's a good half an hour's download at 56k, but it gives a very good idea of the motion of this engine (using air tanks and not a compressor). Sorry, no audio!

To go to C S Soh's original pages for this engine, here's the links:

homepage:
<http://www.geocities.com/cssoh1/>

engine page:
<http://www.geocities.com/cssoh1/engine.htm>

instructions:
<http://www.geocities.com/cssoh1/ldraw/pbengine.htm>

Chris F