I have a ISL400 engine. I found a water hose coming from the back of engine (opposite of cooling fan) that appears to go to the heater core. Does anyone know if that is the in or out water flow direction for the engine? I have not located the other cabin heater core hose where it connects to the engine yet. Can someone guide me in the area where it is located. Cummins Customer Service/Quick Serve will not help with this. I am trying to find the correct hose and area to install a circulating water heat pump which should be on the inlet side of the engine.
Question 2. Does the valve at the heater core up front stay in the position selected on shutdown or does it default to closed?
Thanks,
Kenneth