1993 mercury 175 removing the powerhead to replace the corroded steering arm and the powerhead will not move. I have removed the lower unit disconnected or removed all required parts (10 nuts and washers). There is corrosion on the 4 side studs and I am thinking that it is the problem but not sure. Hoping that the 1993 motor has that one nut or bolt that is not in the manual.
Thanks
Thanks