Recently bought engine, buzzer went off first time out. Shut off engine until buzzer would not come on with key in on postion. Went home had water pump impeller changed out. Went out second time buzzer went off. Went home changed out thermostat.Found spring loaded pressure valve located inside thermostat cover.Can you explain how that valve operates and please does anyone know torque for bolts holding thermostat cover. Have manual on order,has not arrived. Would like to take boat out to see if the buzzer problem stopped. thanks
