310-00-3 Fuel System — General Information 310-00-3
DESCRIPTION AND OPERATION (CONTINUED)
E6461 EN 09/2001 2002 Bantam
Diesel Fuel System Description
and Operation
The diesel injection equipment fitted to the 1,8
litre naturally aspirated Endura-DE diesel engine
in the 2002 Bantam comprises of a fuel injection
pump, four injectors and four glow plugs.
The glow plugs and certain fuel injection pump
components are controlled by the powertrain
control module (EEC V).
Fuel Injection Pump
The engine is equipped with a Bosch VE
distributor type fuel injection pump, which is
driven by the crankshaft via a toothed rubber
drive belt. The fuel injection pump is retained to
the engine by three bolts at the front and a
support bracket at the rear (two bolts). Setting the
injector pump timing is achieved using the
familiar peg method.
The fuel injection pump is fitted with a light load
retard device and a cold start advance solenoid,
both of which change the natural injection timing
characteristics dependent on engine operating
conditions.
Light Load retard Device
The light load retard device is a mechanical /
hydraulic device incorporating a solenoid which is
controlled by the powertrain control module.
Under normal operating conditions and for engine
loads up to approximately 80% full load, the
device retards the injection timing by
approximately 3°. Where engine load is above
80% of full load, engine coolant temperature is
below 50°C and / or engine speed is above 3500
rev/min, the powertrain control module energizes
the solenoid which inhibits the operation of the
light load retard device, thus advancing the
injection timing.
Cold Start Advance Solenoid
The powertrain control module controls the cold
start advance solenoid. When engine coolant
temperature is below 50°C, the powertrain control
module energizes the solenoid which advances
the injection timing throughout the engine speed /
load range.
The amount of time, which the solenoid is also
energized, decreases as engine coolant
temperature increases.
The solenoid is also energized when engine
coolant temperature is below 0°C and engine
speed is just above idle to improve drivability take
off.
Fuel Injectors
The engine is equipped with four Bosch fuel
injectors, which have throttling pintle nozzles.
The fuel injectors are screwed into the cylinder
head and sealed by means of copper washers.
Glow Plugs
The engine is equipped with four glow plugs,
which are screwed into the cylinder head below
the fuel injectors. The glow plugs improve
starting, especially from cold.
The powertrain control module controls the glow
plugs and the glow plug indicator lamp. When the
ignition is switched on, the glow plugs are
switched on and the glow plug indicator lamp is
illuminated for between 1 and 10 seconds
dependant on engine coolant temperature.
(1 second at 80°C and 10 seconds at -30°C).
The glow plugs remain on for a period of 3
seconds after the glow plug indicator lamp has
been extinguished. However, if the engine is
started during this 3-second period, the glow plug
will remain on for a further 0 to 40 seconds
dependant on engine coolant temperature.
(0 seconds at 80°C and 40 seconds at -40°C)
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