Ok here we go, 1997 Sea Ray 175 with a 1997 merc 115, Steering is super hard ,previous owner had steering cable changed. Here is what I have done to trouble shoot. disconnected the steering linkage from the motor. I can turn motor by hand and it turns Fairly Easy, with linkage disconnected steering wheel turns super easy and steering tube slides thru the steering tube on the motor like butter but as soon as I connect the linkage up it is hard to turn. have greased the crap out of vertical tube that the motor turns on and also the tube that the steering rod slides thru, I have no idea what else there is to check.