Reply To: 1959 Johnson 18 hp.

[Don]

This is a great topic, question indeed.  I have seen these covers installed both ways.  I have seen them installed with the cupped inlets facing rearwards which never made sense.  But, now that everyone mentions it, the lower pickup is doing most of the work at higher RPMs in forward.  But, in reverse, the water is being pulled away from the lower water inlet, so the reverse cupped intake cover up above seems to make a bit more sense now..