Mercury 25 EFI Service Manual page 25

2. Remove the spark plug leads to prevent the engine from starting.
3. Straighten and remove the cotter pin.
4. Place a block of wood between the gearcase and the propeller to hold the propeller and remove the propeller nut.
5. Pull the propeller straight off shaft. If propeller is seized to the shaft and cannot be removed, have the propeller removed by
an authorized dealer.
IMPORTANT: To prevent the propeller hub from corroding and seizing to the propeller shaft (especially in saltwater),
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. Coat the propeller shaft with Extreme Grease or 2‑4‑C with PTFE.
Tube Ref No.
Extreme Grease
2-4-C with PTFE
95
7. Install the front thrust hub, propeller, rear thrust hub washer and propeller nut onto the shaft.
a
b
8. 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.
90-8M0105568 eng MARCH 2016
28351
Description
c
a -
d
b -
c -
d -
10077
26899
10087
Where Used
Propeller shaft
Propeller shaft
Propeller nut
Rear thrust washer
Propeller
Front thrust hub
© 2016 Mercury Marine
10075
Maintenance
Part No.
8M0071842
92-802859A 1
Page 1B-11