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Series Land
Rover Diesel Fuel System- Fault Diagnosis
Outline
of the diesel fuel system.
In Series I, II or III Land Rover, fuel is pumped from
the tank by the mechanical fuel pump then passes through filters
to reach the fuel injection/distributor pump. From here an
accurately controlled amount of fuel is sent to the injectors,
depending on the engine speed and requirement of the Land
Rover. The fuel enters the combustion chambers as a fine spray
through the injector nozzles. Air is is pulled into the combustion
chambers through the air filter and intake manifold to form
the correct fuel/air mixture for efficient combustion.
The injection/distributor pump and fuel injectors require
specialist knowledge and equipment to overhaul them.
Land Rover difficult to start
Heater plugs or heater circuit either faulty or not working;
error in the timing of fuel injection/distributor pump; air
present in fuel system; partially blocked fuel pipes; dirty
of wrongly adjusted injector nozzles;
Poor idling or stalling
Slow running control screw not adjusted correctly; error in
the timing of fuel injection/distributor pump; worn fuel injectors;
wrong adjustment to the injector nozzles; partially blocked
injector nozzle; worn fuel injection/distributor pump.
Poor acceleration (even
for a Series Land Rover)
When does a Series Land Rover deliver anything different?!
But it could be:
an error in the timing of fuel injection/distributor pump;
worn or badly adjusted accelerator linkage; worn fuel injectors;
worn fuel injection/distributor pump; internal engine overhaul
required due to loss of compression, valve leakage etc; check
injector nozzle vale seating and that sealing washer is present;
check injectors are sufficiently tightened.
Your Series Land Rover has a smokey
exhaust
Error in the timing of fuel injection/distributor pump; worn
fuel injectors; worn fuel injection/distributor pump; internal
engine overhaul required due to loss of compression, valve
leakage etc.;
Engine runs erratically
Partially blocked fuel pipes; dirty fuel filter; one or more
fuel injectors worn or faulty; worn fuel injection/distributor
pump; Error in the timing of fuel injection/distributor pump.
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