319
GEARCASE SERVICE, 75 – 90 HP MODELS
GEARCASE REMOVAL AND INSTALLATION
12
Gearcase Installation
Before installing gearcase, shift rod
adjustment MUST be checked. Refer to SHIFT
ROD ADJUSTMENT on p. 323.
Coat th e drivesh aft splines with Moly Lube. DO
NOT co at top su rface of th e driveshaf t be cause
lubricant may prevent seat ing of the driveshaf t in
the crankshaft.
Apply Adhesive 847 to the lower exhaust housing
seals’ inner surfaces. Place two new seals on the
housing. Apply Triple-Guard grease to the seals’
outer surfaces and pla ce the housing on the
gearcase.
Slide the gearcase into place, making sure:
• Driveshaft engages the crankshaft.
• Water tube enters the water pump.
• Lower inner exhaust housing installs correctly.
• Shift ro d does not turn an d is positio ned prop-
erly in the shift rod lever below the crankcase.
IMPORTANT: New gearcase screws are treated
with a thread-locking material. Apply Triple-Guard
grease t o threa ds to ensure tha t the correct
clamping force is achieve d when tightening—If a
previously installed screw is re-use d, use a wire
brush to remove any old thread-locking material or
corrosion and lubricate threads with Triple-Guard
grease.
Install screws and washers and tighten to a torque
of:
• 3/8 in. screws – 26 to 28 ft. lbs. (35 to 38 N·m)
• 7/16 in. screws – 45 to 50 ft. lbs. (61 to 68 N·m)
A WARNING
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.
30385
1. Lower exhaust seals 32002
1. 3/8 in. screws 001990
1. 3/8 in screw
2. 7/16 in. screw
COA3139
To Next Page
Loading...
