Mercury 80 Owner's Manual page 52

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.
a - Propeller nut
b - Propeller nut retainer
c - Rear 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.
a
a - Propeller nut
b - Propeller nut retainer
c - Rear thrust hub
8. Place a block of wood between the gearcase and propeller. Torque propeller nut to specifications.
Description
Propeller nut
MAINTENANCE
a b c
d
c
b
a
b c
Flo-Torq II
e
f
ob00382
d - Continuity washer
e - Propeller
f - Forward thrust hub
e
f
d
e f
d
d - Propeller
e - Replaceable drive sleeve
f - Forward thrust hub
Nm lb. in.
75
46
ob00421
3223
Flo-Torq III
lb. ft.
55