Can anybody tell me which inlets/outlets to use when hooking up an external water
heater to my Yanmar
standing in front of the engine
and looking at it: alternator
is on the right, water
pump">raw water pump on the lower left...
There are 3 ports
on the top of the engine
at the thermostat...one on the very front of the engine on the thermostat housing, one slightly lower and to the left of that (below the heat exchanger) and one on the right side of the thermostat housing immediately behind the very top of the alternator
i tried the top and the one to the left in a loop, put in a clear hose to check flow, but nada...those were the ones i was told previously, but
tried running the engine for a few minutes with the thermostat removed...
i checked the thermostat by removing it and putting in a pot of boiling water with a thermometer...thermostat works perfect...
but still no circulation through the external loop