Isuzu A-4BG1 Workshop Manual page 138

8-2 FUEL SYSTEM
GENERAL DESCRIPTION
This illustration is based
on the 6BGl
engines.
Nozzle holder
Water sedimentor
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The fuel system
consists of the fuel tank, the water sedimentor, the fuel filter, the injection pump, and the
injection nozzle.
The fuel from the fuel tank passes through the water sedimentor and the fuel filter where water particles
and other foreign material are removed from the fuel.
Fuel, fed by the injection
pump plunger, is delivered to the injection nozzle in the measured volume at the
optimum
timing
for efficient engine operation.