Mercury 80 Owner's Manual

MAINTENANCE
46
IMPORTANT: To prevent the propeller hub from corroding and seizing to the propeller shaft, especially in salt
water, always apply a coat of the recommended lubricant to the entire propeller shaft at the recommended
maintenance intervals and also each time the propeller is removed.
6. Flo-Torq I Drive Hub Propellers - Install thrust washer, propeller, continuity washer, thrust hub, propeller
nut retainer, and propeller nut onto the shaft.
ob00382
a
b c
d
e
f
a - Propeller nut
b - Propeller nut retainer
c - Rear thrust hub
d - Continuity washer
e - Propeller
f - Forward thrust hub
7. Flo-Torq II and Flo-Torq III Drive Hub Propellers - Install forward thrust hub, replaceable drive sleeve,
propeller, thrust hub, propeller nut retainer and propeller nut onto the shaft.
b
c
a
d
f
e
ob00421
3223
a b c d
e f
Flo-Torq II Flo-Torq III
a - Propeller nut
b - Propeller nut retainer
c - Rear thrust hub
d - Propeller
e - Replaceable drive sleeve
f - Forward thrust hub
8. Place a block of wood between the gearcase and propeller. Torque propeller nut to specifications.
Description Nm lb. in. lb. ft.
Propeller nut 75 55

Mercury 80 Specifications

General

Steering	Remote
Shaft Length	20 in (508 mm)
Gear Ratio	2.07:1
Horsepower	80 hp
Full Throttle RPM Range	5000-6000 RPM
Bore x Stroke	3.15 x 3.15 in (80 x 80 mm)