Mercury GO BOLDLY 25 EFI Operation, Maintenance And Installation Manual page 55

5. Place a block of wood between the gearcase and the propeller and torque
the propeller nut to specification.
NOTE: If the propeller nut does not align with the propeller shaft hole after
tightening to the specified torque, then tighten the nut further to align it with the
hole in the propeller shaft.
6. Align the propeller nut with the propeller shaft hole. Insert a new cotter pin
in the hole and bend the cotter pin ends.
Description
Propeller nut
eng
INSTALLATION
28353
45
Nm lb‑in.
25 –
28351
lb‑ft
18