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GEARCASE SERVICE, 75 – 90 HP MODELS
GEARCASE REMOVAL AND INSTALLATION
GEARCASE SERVICE, 75 – 90 HP MODELS
GEARCASE REMOVAL
AND INSTALLATION
Gearcase Removal
Remove pin and washer from shift rod lever to
release the lower shift rod.
Note where the index mark on the gearcase aligns
with the index number of the adjustable trim tab so
the trim tab can be installed in the same position.
Remove the trim tab retaining screw and trim tab
from the gearcase.
Remove the 3/8-16 in. screw and washer, and
remove 7/16-14 x 3.5 in. screw and washer.
Remove the four 3/8-16 x 1.75 in. gearcase retain-
ing screws and washers.
Remove the gearcase assembly from the exhaust
housing, being careful not to bend the shift rod.
A WARNING
To prevent accidental starting while ser-
vicing, twist and remove all spark plug
leads.
During service, the outboard may drop
unexpectedly. Avoid personal injury;
always support the outboard’s weight with
a suitable hoist or the tilt support bracket
during service.
1. Shift rod screw 002013
1. Index mark
2. Trim tab
3. Trim tab retaining screw
COA3663
O Type Gearcases
1. 3/8-16 x 3.5 in. screw
2. 7/16-14 x 3.5 in. screw
006869
S Type Gearcases
1. 3/8-16 x 1.75 in. screw
2. 7/16-14 x 3.5 in. screw
COA3139
1. Gearcase retaining screws 001990