150 Merc heating up

[wellcraftinmass]

The water starts out of the tube but then it turns to steam about the same time the engine buzzer goes off. I will check the thermostats today. Thanks again for the info. Now on top of everything else, the oil pump drive shaft appears to have busted the gear, because the motion sensor is buzzing all the time and the oil is not feeding from the upper resevoir. This motor is driving me nuts. Now I mix the oil in the tank. now back to work thanks again.