[ogsRULE]

Hi, I am feeling just semi competent right now! I am installing my motor and I am stumped by this port in the motor. I was convinced it was for the water temp sending unit, but three trips to the parts store reveals no fit. It is a bit smaller than 1/2 pipe and bigger than 3/8ths. I figured out there is provision for this unit on the manifold, but just blank on what this port is for? (I know I'm gonna feel stupid!)

Thanks,

Scottie