Ok, this question concerns the direction the thermostat gets inserted into the housing. Same engine as question #1, 1985 Mercruiser 260, raw water cooled (not the closed system).
Does the thermostat go in where the side with the springs faces upwards (into the V thing), like the 1st photo, or does the spring side go down into the base of the housing like the 2nd photo?
Does the thermostat go in where the side with the springs faces upwards (into the V thing), like the 1st photo, or does the spring side go down into the base of the housing like the 2nd photo?