I have a 1986 johnson 40 with no power trim. it is leaking gear oil from the side. someone said there was a set screw missing. does anyone no anything about these? also when i pulled both the plugs to drain it there wasn't any water in it. however when i removed the plugs a little oil drip from the pump inlet. also does anyone know how to get the shift shaft out? i see no access area and i seperated it but it is still hung up on the shift shaft. also the shaf is in the very front og the motor. it runs through the steering pivot