Hand Wheel Driving Unit

One cylinder, 4 cycled and double valve system gas engine, to show operations like intake, compression, explosion, exhaust, spark and others, mounted on wooden base with spark plug and battery.

Fixed on polished wooden base, single barrel made of steel pipe with stopcock.
.
Pump plate made of aluminium dia (a) 15 cm (b) 20 cm (c) 25 cm.