Mercury 4.3 MPI SeaCore User Manual

Section 4 - Maintenance
Page 70 90-8M0113859 eng DECEMBER 2015
Bravo Three Propeller Removal
!
WARNING
Rotating propellers can cause serious injury or death. Never operate the boat out of the water with a propeller installed.
Before installing or removing a propeller, place the drive unit in neutral and engage the lanyard stop switch to prevent the
engine from starting. Place a block of wood between the propeller blade and the anti‑ventilation plate.
1. Place a wood block between the propeller blades and the anti‑ventilation plate to prevent rotation.
2. Remove the bolt and washers securing the propeller shaft anode.
3. Remove the propeller shaft anode.
a - Propeller
b - Rear propeller nut
c - Propeller shaft anode
d - Propeller shaft anode screw
e - Flat washer
f - Star washer
4. Turn the rear propeller nut 37 mm (1‑7/16 in.) counterclockwise to remove the nut.
5. Slide the propeller and thrust hub off the propeller shaft.
6. Turn the front propeller nut 70 mm (2‑3/4 in.) counterclockwise to remove the nut.
7. Slide the propeller and thrust hub off the propeller shaft.
NOTE: Some damaged propellers can be repaired. Contact your authorized Mercury MerCruiser dealer.
a - Rear propeller nut
b - Rear propeller
c - Rear propeller thrust hub
d - Front propeller nut
e - Front propeller
f - Front propeller thrust hub
g - Propeller shaft anode screw
h - Flat washer
i - Star washer
j - Propeller shaft anode
a
b
d
c
f
e
5303
e
f
a
b
c
d
5304
g
h
i
j

Mercury 4.3 MPI SeaCore Specifications

General

Brand	Mercury
Model	4.3 MPI SeaCore
Category	Engine
Language	English