Mercury 40 4-Stroke User Manual

MAINTENANCE
54
7. Flo-Torq I drive hub propellers - Install the forward thrust hub, propeller, propeller nut retainer,
and propeller nut onto the shaft.
a
b
c
d
26903
a - Propeller nut
b - Propeller nut retainer
c - Propeller
d - Forward thrust hub
8.
Place the propeller nut retainer over pins. Place a block of wood between the gearcase and
propeller and tighten propeller nut to the specified torque.
Description Nm lb. in. lb. ft.
Propeller nut 75 55
9. Align the flat sides of the propeller nut with the tabs on the propeller nut retainer. Secure the
propeller nut by bending the tabs up and against the flats on the propeller nut.
a
b
a
b
26906
a - Pins b - Tabs
10. Reinstall the spark plug leads.
Spark Plug Inspection and Replacement
!
WARNING
Damaged spark plug boots may emit sparks which can ignite fuel vapors under the engine cowl,
resulting in serious injury or death from a fire or explosion. To avoid damaging the spark plug boots,
do not use any sharp object or metal tool to remove the spark plug boots.

Mercury 40 4-Stroke Specifications

General

Brand	Mercury
Model	40 4-Stroke
Category	Outboard Motor
Language	English