Mercury 4 SERIES

GEAR HOUSING
90-857138R1 MAY 2000 Page 6-9
3. Remove nut, washer, propeller and thrust hub.
a
b
c
d
56390
a - Nut
b - Washer
c - Propeller
d - Thrust Hub
Gear Housing Removal
WARNING
To prevent accidental engine starting, remove (and isolate) spark plug lead from
spark plug BEFORE removing gear housing.
1. Remove (and isolate) spark plug lead from spark plug.
2. Shift outboard into “Reverse” gear.
3. Tilt (and lock) outboard to full “Up” position.
4. Remove plug.
5. Loosen bolt to loosen shift shaft clamp.
a
b
b
c
c
56391
56392
a - Plug
b - Bolt
c - Shift Shaft Clamp