Regal 53 SC Owner's Manual page 241

5. Slide the front propeller and front thrust hub off the
propeller shaft.
Zeus Propeller Installation
Read and understand the warning label on page 51
before installing propellers!
Note that in most cases the vessel will need to be hoisted
to remove damaged propellers or components. At other
times a diver may need to be hired to change out dam-
aged propellers.
1. Coat the propeller shaft spline with one of the Mercury
Quicksilver lubricants.
a. Special lubricant 101- propeller shaft splines (Mercury
part # 92-802865Q02).
b. 2-4-C marine lubricant with tefl on- propeller shaft
splines (Mercury part # 92-802859A1).
Note: Anti-Corrosion grease is for saltwater application only.
2. Slide the front thrust hub onto the propeller shaft with
the tapered side toward the propeller hub.
3. Align the splines and place the front propeller on the
shaft.
4. Install the front propeller nut.
5. Place an appropriately sized block of wood between
the trim tab and the propeller.
6. Torque the front propeller nut (100 ft. lbs.) using the
same propeller nut tool you used to remove the nut.
7. Check the propeller rotation, The propeller must not
contact the lower drive housing.
Note that the drives require an alignment procedure
to make them parallel. This procedure must be per-
formed with the aft propellers either not mounted
or removed. A special MercCruiser G3 tool must be
used to align the stern drives. The procedure veri-
fi es that the mechanical drive offset is greater than
-2 degree and less than 2 degree. This needs to be
performed by the closest Cummins MerCruiser die-
sel repair facility.
8. Slide the rear thrust hub on the propeller shaft with the
tapered side toward the propeller hub.
9. Align the splines and put the rear propeller on the
shaft splines. The propeller must fi t freely on the propel-
ler shaft splines.
10. Install the rear propeller nut.
11. Place an appropriately sized block of wood between
the trim tab and the propeller.
12. Tighten the rear propeller nut to specifi cations (60 ft.
lbs.).
52
Chapter 5