Isuzu NHR 4J Series Workshop Manual page 276

7. Hand-tighten the adjustment retaining nut together
040MV010.tif
8. Tighten the adjustment retaining nut to the specified
040MV014-1.tif
9. Set the nozzle holder to the nozzle tester.
10. Operate the nozzle tester and measure the first nozzle
11. If the first nozzle opening pressure is not as specified,
CAUTION:
Use a micrometer to measure shim thickness.
040MV030.tif
•
040LX010.tif
with the gasket to the nozzle holder.
Retaining nut: 5-8677-7140-0
Gasket: 5-8677-7139-0
torque.
Torque: 29 - 39 N∙m (3.0 - 4.0 kg∙m)
opening pressure.
disassemble the nozzle holder and replace the shim
until the pressure is as specified.
First nozzle opening pressure adjusting shims
Parts No.
1-1534-9042-0
1-1534-9043-0
1-1534-9044-0
1-1534-9045-0
1-1534-9046-0
1-1534-9047-0
1-1534-9048-0
1-1534-9049-0
ENGINE FUEL 6C - 17
Thickness (mm)
0.40
0.50
0.52
0.54
0.56
0.58
0.60
0.70