Propeller Installation
!
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. Coat the propeller shaft splines with one of the following Mercury products:
Tube Ref No. Description Where Used Part No.
Extreme Grease Propeller shaft splines 8M0071842
95
2-4-C with PTFE Propeller shaft splines 92-802859A 1
2. Install the front thrust hub onto the propeller shaft so that the larger diameter end is facing the propeller.
3.
Install the propeller, rear thrust washer, and propeller nut onto the propeller shaft.
4. Place a block of wood between the gearcase and the propeller to prevent rotation. Tighten the propeller nut to the specified
torque. Secure the nut to the propeller shaft with a cotter pin.
NOTE: If the propeller nut does not align with the propeller shaft hole after tightening, tighten the nut further to align with
the hole.
5. Align the propeller nut with the propeller shaft hole. Insert a new cotter pin into the hole and bend the ends.
a - Cotter pin
b - Propeller nut
c - Rear thrust washer
d - Front thrust hub (large diameter end
towards the propeller)
Description Nm lb‑in. lb‑ft
Propeller nut 12.0 106.2 –
Gear Housing (2.15:1)
90-8M0125265 eng NOVEMBER 2017 © 2018 Mercury Marine Page 6A-41
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