1978 Johnson 175, 200, 235 HP Outboard Service Manual, Page 118Get this manual
DISASSEMBLY OF OEARCASE (See Figure 6-47) aPlace gearcase in suitable holding fixtureSee Figure 6-48Remove oil level and drain plugs to drain gearcaseReinstall plugs temporarily after draining gearcasebRemove propeller nut, washers and propellerRemove "0" ring from top of driveshaft
Impeller housing screws Impeller housing Impeller housing cover Grommet Shift rod cover screws
Figure 6-49Shift Rod Cover and Impeller Housing Screws