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Isuzu NPR 4J Series - Injection Pump Assembly (Gear Drive Type)

Isuzu NPR 4J Series
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ENGINE FUEL 6C - 27
5. AC Generator Drive Belt
Loosen AC generator mounting bolt (under side) and
adjust plate lock bolt, and remove the drive belt.
6. Noise Shield Cover
7. Noise Cover Spacer
8. Air Intake Duct
9. Injection Pump Control Cable
Removal the control cable bracket bolt and remove the
control lever side.
10. Fuel Hose
Disconnect the fuel feed hose and fuel return hose.
11. CSD (Cold Starting Device) Water Hose
Disconnect the water hose from injection pump side.
12. Injection Pump Harness
Remove the tachometer sensor (with tachometer)
CSD solenoid, fuel cut solenoid.
13. Injection Pipe
Release pipe clip.
Remove the flare nut on the pump side.
Remove the flare nut on the injection nozzle side, and
remove the injection pipe.
CAUTION
Be sure to plug the injection nozzle holder and delivery
holder to prevent the entry of foreign matter.
14. Injection Pump Assembly
Remove pump mounting nut
Loosen injection pump rear bracket adjuster lock bolt.
Remove the mounting bolt on the engine side, and pull
out the pump from the engine.
NOTE:
Plug the injection pump delivery holder parts with the
shipping caps (or the equivalent) to prevent the entry
of foreign materials.
6C-26-1.tif
6C-26-3.tif
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6C-26-4.tif

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