This engine followed me home yesterday. Although much bigger than what I normally collect this engine was given to me and it's not done to "look a gift horse in the mouth".

It's a pretty heavy lump and although we thought that it was siezed solid when we collected it the trip home (held by ropes through the flywheels) loosened it !  It appears that there may still be a bit of dirt or something near the top of the  cylinder and we have not tried to  turn it past that point yet for fear of damaging the top ring. The valves are both loose and the inside of the crankcase looks to be perfect - it still had oil in it and there is no sign of rust inside the engine.

It appears that a pump (I'm not sure if it's for oil or diesel fuel) is missing (last pic below) and a few other minor bits 'n pieces.

I have no other information on this engine and would like to know the following:
A) Where can I find a parts or operators manual?
B) Does anyone know if the serial number is stamped anywhere on the engine - there is evidence of a missing tag at the back of the engine on the cast iron base - (is this the diesel fuel tank or is it a lubricating oil tank?).
C) Does any one know any other owner of an engine like this who would be prepared to correspond with me and give me info on the engine.