Operator`s manual
FUEL SYSTEM
Diesel Fuel
Use
No.2
diesel fuel with a cetane rating
of
45
or higher. Never use kerosene or home heating oil since
these fuels
do
not have the same lubricating properties as
No.2
diesel fuel.
In
cold weather particularly, water vapor is produced
by
condensation when air is present in the fuel tank.
Keep fuel tank(s) full and completely free
of
dirt and water.
Fuel FilterlW
ater
Separators
A primary fuel filter
of
the water separating type must be
installed between the fuel tank and the engine. This is to
remove water and other contaminants from the fuel before
they can be carried
to
the fuel system on the engine.
Most installers include with the generator installation
package a rype
of
filter/water separator for they are aware
of
the problems contaminants in the fuel can cause - all
of
which are not warrantable through Westerbeke.
A rypical fuel filter/water separator is illustrated
at
the right.
This is the Raycor Model
220 F. Keep in mind that
if
a water
separator rype filter is not installed between the fuel supply
tank and engine-mounted fuel system, any water in the fuel
will affect the fuel pump, engine filter, and injection equip-
ment. The owner/operator is responsible for making certain
the fuel reaching the engine's injection equipment is free
of
impurities. This process is accomplished by installing and
maintaining a proper filtration/separation system.
In
addition, any gasoline in the fuel system will damage the
engine's fuel injection pump assembly and injectors as gas-
oline does not have the same lubricating qualities as diesel
fuel.
Priming
the Fuel System (Self-Bleeding)
The Westerbeke self-bleeding fuel system is semiautomatic in operation. The self-bleeding feature
of
the
fuel system allows for easy servicing
of
the fuel filters. Simply remove and replace the filter element (take
care in catching any fuel that may drain out
of
the fuel filtering assembly) as described in the "Replacing
the Fuel Filter Element" section. Energize the
PREHEAT switch and allow the electric fuel pump to
operate for
20
to 30 seconds to prime and bleed air from the system. (No fittings should be opened.)
Then proceed to start the engine as you normally would.
If
the engine does not start, stop and wait a
few
moments, and then repeat the bleed procedure as indicated above. When the PREHEAT switch is
depressed, the preheat elements (the glow plugs) are energized,
so
take care not to over heat them.
45
WESTERBEKE
GENERATORS