Pleasurecraft Marine Pleasurecraft 302/2A Owner's Manual - page 7
Operating Limits (See Specifications for
Your Model)
Maximum RPM at wide open throttle under normal load
conditions can be controlled only by propeller pitch,
diameter, and design. It is essential that the propeller
selected does not overload or underload the engine. Extreme
overloading resulting in low RPM's at wide open throttle
will deliver poor performance, poor fuel economy, and
eventually result in engine damage. Underloading will result
in high RPM, poor fuel economy, and engine damage, if
operated above recommended maximum RPM's.
Do not operate at high RPM's in neutral. Operation in
extremely shallow water can cause sand, silt, and gravel to
be pulled into the cooling system. This can create excessive
water pump wear, and in extreme cases may deposit in the
engine block water jackets and seriously damage the engine
from improper cooling. Heavy weed growth can plug oil
coolers and water intakes and cause damage. If operation
under these conditions is necessary, a good quality sea water
strainer or filter should be installed. The installation of a
fresh water cooling system can reduce the danger of engine
damage from this cause.
ALWAYS OBSERVE HIGH SAFETY STANDARDS
AND COURTESY AFLOAT.
Propellers
Propellers can affect the performance of your boat in many
ways. Selection of the proper propeller for your application
is vital. In most cases, the selection is made by the
Boatbuilder for best over-all performance; however, many
variable factors, such as heavy loads, high altitude, hull
balance, etc., can contribute toward rendering the "standard"
propeller unsuitable, since the application is no longer
"standard."
Many undesirable results can occur from a propeller not
properly matched to the specific application; high RPM's,
low RPM's, cavitation, vibration, steering torque (stem
drives), drumming or rumbling noise, high fuel
consumption, poor efficiency, and even electrolysis damage
(stem drive). When changing propellers, extreme care should
be taken to select a propeller which allows the maximum
engine RPM's with normal load to be within the proper
range for the particular model. See the engine specification
chart in this book for "Maximum RPM."
The use of brass or bronze propellers on stern drives in salt
water or water with high mineral or acid content is not
recommended, due to the possibility of electrolytic attack
and corrosion of the outdrive housings.
If the propeller is bent, broken, out of balance, or otherwise
damaged, limit operation to bare necessity until the propeller
is repaired or replaced.
Directional References
Directional references are given as they appear when
viewing boat from stern, looking toward bow. Front of boat
is bow; rear is stern. Starboard side is right side; port side is
left side.
Service Recommendations
This manual includes operating and maintenance
instructions that are usually required in normal service. Do
not attempt any repairs which are not specifically covered in
this manual. Strict compliance to the recommendations for
lubrication, maintenance, operation, etc., will assure you of
superior performance and dependable service.
Literature
To obtain service and/or parts literature for your PCM
Engine(s) contact your dealer or write:
PCM
P.O. Box 130
Canal Winchester, Ohio 43110
Serial Number Locations
Serial number of your PCM Engine is located at rear of
engine on the Intake Manifold. Transmission serial number
is located on the transmission case.
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