Isuzu N-Series. Manual — part 354
6A3-68 ENGINE (4HF1 / 4HF1-2 / 4HE1-TC / 4HG1 / 4HG1-T)
2. Oil Filter
Tighten:
Oil filter cover bolt to 48 N
⋅m (4.9 kg⋅m/35 lb⋅ft)
3. Oil Pressure Switch
1) Apply the recommended liquid gasket (LOC-
TITE 262) or its equivalent to at least 2 — 3 of
the oil pressure switch threaded areas.
2) Install the oil pressure switch to the oil filter cov-
er.
Tighten:
Oil pressure switch to 13 N
⋅m (1.3 kg⋅m/113 lb⋅in)
4. Oil Pipe
Tighten:
Oil pipe joint bolt to 17 N
⋅m (1.7 kg⋅m/12 lb⋅ft)
• Connect battery ground cable.
• Start engine and check for oil leakage carefully.
N6A0517E
N6A0518E
N6A0519E
ENGINE (4HF1 / 4HF1-2 / 4HE1-TC / 4HG1 / 4HG1-T) 6A3-69
OIL FILTER CARTRIDGE
Component
Removal
Preparation
• Disconnect battery ground cable.
• Place a receptacle beneath the oil filter to contain
the drained oil.
1. Oil Filter Cartridge
Use an oil filter wrench to remove the oil filter car-
tridge.
Oil Filter Wrench: 1-8522-1097-0
5-8840-2094-0 (4WD model)
Installation
1. Oil Filter Cartridge
1) Clean the oil filter fitting face.
2) Apply a light coat of engine oil to the O-ring.
3) Turn in the new oil filter until the filter O-ring is
fitted against the sealing face.
4) Use an oil filter wrench to install the new oil filter
cartridge.
Oil Filter Wrench: 1-8522-1097-0
5-8840-2094-0 (4WD model)
Tighten:
Oil filter to 64 N
⋅m (6.5 kg⋅m/47 lb⋅ft)
Legend
1. Oil filter cartridge
N6A0520E
N6A0521E
N6A0521E
6A3-70 ENGINE (4HF1 / 4HF1-2 / 4HE1-TC / 4HG1 / 4HG1-T)
OIL COOLER
Component
Legend
1. Vacuum hose
14. PCV hose
2. Oil level guide tube
15. Water bypass hose
3. Intake air duct
16. Injection pipe
4. Engine stop cable
17. Injection pump assembly
5. Accelerator control cable
18. Injection pump rubber spacer
6. Engine control cable
19. A/C drive belt (If equipped with A/C)
7. Engine control lever assembly
20. Idle pulley bracket (If equipped with A/C)
8. Oil pipe
21. Heater hose
9. Fuel return hose
22. Radiator lower hose
10. Fuel feed hose
23. Heater pipe
11. Nozzle cover
24. Water suction pipe
12. Leak off pipe
25. Oil cooler assembly
13. Fuel pipe
26. O-ring
N6A0523E
ENGINE (4HF1 / 4HF1-2 / 4HE1-TC / 4HG1 / 4HG1-T) 6A3-71
Removal
Preparation
• Disconnect the battery ground cable
• Drain coolant
1. Vacuum Hose
2. Oil Level Guide Tube
Remove the guide tube fixing bolt and pull out the
guide tube.
3. Intake Air Duct
4. Engine Stop Cable
Loosen the locking nut at the bracket and discon-
nect engine stop cable from injection pump stop le-
ver.
5. Accelerator Control Cable
Loosen the locking nut at the bracket and discon-
nect accelerator control cable from injection pump
control lever.
N6A0524E
N6A0525E
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