Identifying a Yanmar
I have a three cylinder Yanmar diesel which has the fresh water intake to cool the internal cooling circuit. Is there a way to precisely identify which Yanmar it is, e.g. 3GM30, 3GMD, 3GM30F, through the engine serial number? The engine is in a 1985 Cal 33 is almost certainly original to the boat.
TIA for any help/suggestions.