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I changed the thermostat to my MD2030. I didn't have any problems, but wanted to make sure that its fine.
Now when Im running the engine I noticed that the long coolant hose that goes from coolantpump to heat exchanger (see pic) doesn’t get as warm as the other coolant hoses on the engine. Now I’m wondering if the thermostat doesn’t open or for some other reason the circulation doesn't work on that hose. Or is it possible that the circulation is working but that hose isn't supposed to feel as hot as in the other hoses/parts of the engine because the coolant is colder in that part of the circulation?
Does someone know how does the cooling system flow go with this engine? I suppose the the circulation doesn’t enter that hose/connection to heat exchanger before the engine gets warm and the thermostat opens?
I was running the engine more than 2 hours with more than 2000 - 2500 up to 3000 rpm with no problems. So it cannot be the case that the engine wasnt warm enough to open the thermostat. Either did not engine overheat / temperature alarm didnt go on, so I suppose that engine wasn’t overheated, which would be the case if the coolant couldnt run to heat exchanger.
MD2030 coolant circulation problem?
