OPERATORS MANUAL - Westerbeke

DIESEL FUEL
DIESEL FUEL, ENGINE OIL AND ENGINE COOLANT
Use fuel that meets the requirements or specification of Class
2-D (ASTM), and has a cetane rating of #45 or hetter.
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 unsatisfactory 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 filter/water
separator between the fuel tank and the engine. The Raycor
500 FG or 900 FG are good examples of sueh filters.
ENGINE OIL
Use a heavy duty engine oil with an API classification of CF
or CG-4 or better. Change the engine oil after an initial 50
hours of break-in operation, and every 100 hours of operation
thereafter. For recommended oil viscosity, sec the following
chart·
Operating Temperature Oil Viscosity
Above 68°F (20°C) SAE 30. 1 OW·30 or 15W-40
41°-68°F (5·20°C) SAE 20. 1 OW·30 or 15W-40
Below 4n (SoC) SAE 1 OW·30 or 15W·40
A CAUTION: 00 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 hannful 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 35 and
55 psi.
NOTE: A newly slarted, cold engine can have an oil pressure
reading upwards of 60 psi. A warmed engine can have an oil
pressure reading as low as 25 psi. These readings will vary
depending upon the temperature of the engine and the load
placed on the generator.
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 (SeAs) 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 Concentration
Freezing Temperature
ANTIFREEZE PROTECTION
23%
WF
(-WOC)
Coolant Recovery Tank
30% 35% 50%
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 he
located at or above the engine:5 manifold and he easily
accessible for checking and adding fluid.
Engines & Generators
5