http://www.greenpowerscience.com/HOTLINKS.php
This illustrates the simplicity of converting any gasoline engine into a near perfectly machined Green Steam engine from scrap weed eaters or chain saws. Even old lawn mowers will work. I am considering an air powered tractor from a deep sea diving tank:-) Regulator to reduce 3200 psi to about 250.
آی-ویدئو