Re: lower unit dissassembly
I assume this is a two part lower unit instead of a one part unit.
1 Remove water pump
2 Remove Bearing cage
3 Remove long hex bolt in front of the water pump cavity
4 Slowly rotate lower gear shift rod counterclockwise to avoid cutting the shift rod seal and unthread it from the shift cam.
5 Remove the nut and lockwasher inside the gearcase, then separate the lower and upper gearcase housings. Remove and discard the gasket.