Silverton 33C - Propulsion, Steering, and Control Systems

SYSTEM OPERATIONS-51
Propulsion of your 33C is accomplished by two (2)
inboard Engines, located within the Engine Compart-
ment. The Engines are fueled by either gasoline or
diesel fuel. Each Engine transmits its power to a
separate transmission, which rotates the attached
Propeller Shaft and the Propeller, providing forward
or reverse movement of your yacht as selected from
the shift control unit located on the port side of the
Helm. The photo below shows the Throttle and Shift
Control at the Helm.
The transmissions are counter-rotating. This is de-
fi ned as when in the forward shift mode and viewing
forward from Aft, the Port transmission rotates the
Port propeller counterclockwise, and the Starboard
transmission rotates the Starboard propeller clock-
wise.
The Engine Starting Procedure is as follows:
 Open and inspect the Engine Compartment. Use
your sense of smell to detect the presence of fuel
fumes. Access to the Engine Compartment in your
33C is provided through the hatch located in the fl oor
of the Salon.
 Turn Battery Switch ON.
 Operate the Bilge Blower Motors for at least fi ve
(5) minutes. Listen to make sure blowers are on.
 Check the Bilge water level. If it appears above
normal, turn ON the Bilge Pump(s) and remove the
water. Determine the source of the excess water and
repair, if necessary, before starting the Engines.
 Check the Bilge for the presence of any oil. De-
termine the source of the oil and repair, if necessary,
before starting the Engines.
 Open both Engine Seawater Intake Valves (loca-
tion of these valves are shown on the Mechanical
Layout in the Schematics Section of this Owner’s
Manual). The valves are open when the handles
are parallel to the valve body (See photograph below
and the adjacent photograph, which illustrates the
open and closed positions of the Engine Seawater
Intake Valves).
The OPEN position is above on the left.
 Visually examine both Seawater Strainers (Op-
tional) to ensure they are free of debris. Clean, if
debris is noted.
PROPULSION SYSTEM
 Check all cooling
and lubricating flu-
ids (See photograph
below, which illus-
trates the location of
the Engine oil “dip-
stick”). Add Engine oil
or transmission oil, if
needed; but DO NOT
overfi ll.