Operator`s manual
LUBRICATION SYSTEM
Engine
Oil
For engine lubrication, use lubricating oil designated for diesel service. These oils are classified according
to the
API
specifications into service grades
CA, CB,
CC and CD. The use
of
CC
or
higher
(CD)
grades,
made
by
well-known manufacturers
is
recommended. The oil selected should be used thereafter.
Engine
Oil
Viscosity
(SAE
Number)
Use an oil having a viscosity best suited
to
the atmospheric temperature. Use
of
an all-season oil
SAE
10W-
30
with minimum viscosity change under different temperatures
is
suggested.
Atmospheric Temperature
68'
F (20'
C)
or
higher
41'
F (5'
C)
-
68'
F (20'
C)
41'
F(5'
C)
-
or
lower
Viscosity
SAE
30 or 10W-30
SAE
20 or 10W-30
SAE
10W-30
NOTE:
Do not use an engine lubricating oil with an
SAE
number greater than
30
in the en-
gine.
Oil Pressure
The engine's oil pressure, during operation,
is
indicated by the oil pressure gauge on the Admirals Panel
(see page 37).
During normal operation, the oil pressure will range between 35 and 60 psi. At idle speed, the oil pressure
will range between
20 and 35 psi. At the time of cranking, the oil pressure will rise proportionately with speed.
NOTE: A newly started, cold engine can have an oil pressure reading upwards
of
60 psi. A
warmed engine can have an oil pressure reading as
low
as
35
psi. These readings will vary
depending upon the speed at which the engine is running.
Westerbeke Diesel
Engines
60