Fuel, Engine Oil And Coolant; Oil Pressure - Westerbeke 80N4 Operator's Manual

DIESEL FUEL, ENGINE OIL AND ENGINE COOLANT
DIESEL FUEL
Use fuel that meets the requirements or specification of Class
2-D (ASTM), and has a cetane rating of #45 or better.
Care Of The Fuel Supply
Use only clean diesel fuel! The clearance of the components
in your fuel injection pump is very critical; invisible dirt
particles which might pass through the filter can damage
these finely finished parts. It is important to buy clean fuel,
and keep it clean. The best fuel can be rendered unsatisfac-
tory by careless handling or improper storage facilities. To
assure that the fuel going into the tank for your engine's daily
use is clean and pure, the following practice is advisable:
Purchase a well-known brand of fuel.
Install and regularly service a good, visual-type fuel
filter/water separator between the fuel tank and the engine.
The Raycor 445 or larger is a good example of such a filter.
ENGINE OIL
80N41120N6
l1OT41170T6
API Grade CF or CG-4
API Grade CG-4
Use the heavy duty engine oils as specified above. Change
the engine oil after an initial 50 hour break-in period and
every 100 hours of operation thereafter.
Engine oil viscosity largely affects engine startability, perfor-
mance, oil consumption, speed of wearing and occurrence of
seizure, etc. Using lubricants whose viscosity is selected
according to the atmospheric temperature is important.
ENGINE OIL VISCOSITY CHART
ENGINE OIL VISCOSITY GRADE - AMBIENT TEMPERATURE
I
SAE 2020W
_SA.
40.501
.I
I
.1
SAE lOW SAE 30
I
A
CAUTION:
Do not allow two
or
more brands
of
engine oil to mix. Each brand contains its own additives;
additives
of
different brands could react in the mixture
to produce properties harmful to your engine.
OIL PRESSURE
The engine's oil pressure, during operation, is indicated
by the oil pressure gauge on the instrument panel. During
normal operation, the oil pressure will range between 25 and
85 psi.
NOTE:
A newly staned, cold engine can have an oil pressure
reading up to 85 psi. A warmed engine can have an oil pres-
sure reading as low as
25
psi. These readings will vary
depending upon the temperature of the engine, the load
placed on the engine, and the RPM's.
ENGINE COOLANT
WESTERBEKE recommends a mixture of 50% antifreeze
and 50% distilled water. Distilled water is free from the
chemicals that can corrode internal engine surfaces.
The antifreeze performs double duty. It allows the engine to
run at proper temperatures by transferring heat away from the
engine to the coolant, and lubricates and protects the cooling
circuit from rust and corrosion. Look for a good quality
antifreeze that contains Supplemental Cooling Additives
(SCAs) that keep the antifreeze chemically balanced, crucial
to long term protection.
The distilled water and antifreeze should be premixed before
being poured into the cooling circuit.
NOTE:
Look for the new environmentally-friendly long lasting
antifreeze that is now available.
Antifreeze mixtures will protect against an unexpected freeze
and they are beneficial to the engine's cooling system. They
retard rust and add to the life of the circulating pump seal.
ANTIFREEZE PROTECTION
Antifreeze Concentration 23% 30% 35% 50%
Freezing Temperature 14°F 8°F
(-10°C) (-13°C)
COOLANT RECOVERY TANK
A coolant recovery tank kit is supplied with each
WESTERBEKE diesel engine. The purpose of this recovery
tank is to allow for engine coolant expansion and contraction
during engine operation, without the loss of coolant and
without introducing air into the cooling system. This kit is
provided and must be installed before operating the engine.
NOTE:
This tank, with its short run of plastic hose, must be
located above the level of the engine's manifold.
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Engines & Generators
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