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INSTALLATION
Installation
Apply Triple-Guard grease to
the entire propeller shaft before installing
the propeller. At least annually, remove
the propeller and check for debris. Clean
the shaft and regrease it before reinstall-
ing a propeller.
Slide thrust washer onto shaft with shoulder
facing aft.
Slide propeller onto shaft, engaging the
splines and seating it on the thrust bushing.
Slide spacer onto the shaft and engage the
propeller shaft splines.
Wedge a block of wood between the propeller
blade and the anti-ventilation plate.
20 Inch 75–90 HP Models — Install propeller
nut and tighten to a torque of 120-144 in. lbs.
(13.6-16.3 N·m).
25 inch 90 HP Models — Install keeper on
propeller nut, align keeper slots and cotter pin
hole.
IMPORTANT: If cotter pin holes in the propel-
ler nut and propeller shaft are not aligned,
tighten the nut until they are in line. Do not
loosen.
Install new cotter pin and bend ends to se-
cure.
Remove block of wood. Make sure engine is
in NEUTRAL; give propeller a spin. It must
turn freely.
Repair
If your propeller hits a solid object, the impact
is partially absorbed by the bushing in the hub
to help prevent damage to the outboard. A
strong impact can damage the hub and pro-
peller blades. Damage to blades can cause
unusual and excessive vibration. Damage to
the hub can cause excessive engine RPM
with little forward movement.
Avoid or limit operation using
a damaged propeller. Carry a spare pro-
peller.
Keep your propeller in good condition. Use a
file to smooth slight damage to blade edges.
See your Dealer for repair of serious damage.
A WARNING
When servicing the propeller, always
shift the outboard to NEUTRAL position,
turn the key switch OFF, and twist and
remove all spark plug wires so the out-
board cannot be started accidentally.
CO2917
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