General Description; Fuel Flow - Isuzu 4JA1 Workshop Manual

FUEL FLOW

The fuel system consists of the fuel tank, the fuel filter, the water separator, the injection pump, and the injection
nozzle.
The fuel from the fuel tank passes through the water separator 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.
NOTE:
1 If it find abnormal condition on the fuel injector, refer to section 6E ENGINE DRIVEABILITY AND
EMISSIONS.
2
Do not contain "Additive for water drain" with fuel.

GENERAL DESCRIPTION

FUEL SYSTEM 6C – 3
RTW66CMF000101