MurrayM
Guru
So, I drained 6 litres of anti-freeze from the three draincocks on our Yanmar 4JH2-UTE, filled it back up with about 5 litres, started the engine with the fill cap off, and waited. Ran engine at about 1000 rpm for half an hour, and while the coolant did begin to circulate, the level never did drop so I could add the rest.
#1) Is the thermostat toast, or 0C ambient outside temperature too cold and engine just not heating up enough,
#2) will I have to run the boat around for a while under load to get the temperature up (was storming yesterday),
#3) what damage could be done if that last litre doesn't get into the engine for another day or so?
#1) Is the thermostat toast, or 0C ambient outside temperature too cold and engine just not heating up enough,
#2) will I have to run the boat around for a while under load to get the temperature up (was storming yesterday),
#3) what damage could be done if that last litre doesn't get into the engine for another day or so?