Isuzu KB P190. Service manual — part 358
6A-72 ENGINE MECHANICAL (4JK1/4JJ1)
Cylinder Head
Components
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1. Fuel Injector Clamp
2. Fuel Injector Assembly
3. Glow
Plug
4. Intake and Exhaust Valves
5.
Cylinder
Head
6. Timing Chain Tension Lever
7. Timing Chain Guide
8. Timing Chain Tensioner
Note:
To avoid electric shock;
Set the switch to the 'OFF' position and disconnect the
negative battery cable before checking or repairing the
fuel injector, wiring or/and connectors.
Removal
1. Remove the engine head cover.
2. Drain the engine coolant.
ENGINE MECHANICAL (4JK1/4JJ1) 6A-73
3. Remove the radiator upper hose.
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4. Remove the fan guide.
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1. Fan
Guide
2. Clips
3. Lower Fan guide
4. Fan
Shroud
5. Remove the cooling Fan.
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6. Rotate the crankshaft to make the No.1 cylinder
meet the compression top dead center (TDC).
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1. TDC
7. Remove the A/C compressor drive belt.
6A-74 ENGINE MECHANICAL (4JK1/4JJ1)
8. Remove the A/C compressor adjust pulley.
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1. Bolt
2. Nut
9. Remove the battery.
10.
Disconnect the A/C compressor connector and
A/C compressor with hose.
11. Remove the A/C compressor bracket.
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1. A/C Compressor Bracket
2. Intake
Duct
3. A/C
Compressor
12. Remove the intercooler (High output).
• Disconnect the BARO sensor harness
connector (2).
• Remove the two intake hoses.
• Remove the intercooler (1).
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13.
Remove the intake hose and duct (Standard
output).
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Legend
1. Intake Hose for Intercooler and Intake Throttle
2. Intake Duct for Turbocharger and Air Cleaner
3. Intake Hose for Turbocharger and Intercooler
ENGINE MECHANICAL (4JK1/4JJ1) 6A-75
14. Disconnect the fuel injector connector (2).
15. Remove the fuel leak off hose (1).
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Note:
Do not reuse the fuel leak off hose clips.
16. Disconnect each connector.
• Glow
Plug
• EGR
Valve
• Throttle
Assembly
• Barometric
Sensor
• Water temperature sensor
• Camshaft Position sensor
17. Remove the harness bracket.
18. Remove the cylinder head cover.
Refer to “Cylinder Head Cover”.
19. Remove the EGR cooler heat protector.
20. Remove the EGR cooler water pipe.
21. Remove the EGR cooler.
22.
Loosen the nuts of catalyst converter and
turbocharger.
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1. Catalyst
Converter
2. Turbocharger
23. Remove the exhaust front pipe.
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Legend
1. Exhaust Front Pipe (4×2 High Ride Suspension,
4×4)
2. Exhaust Front Pipe (4×2 Except High Ride
Suspension)
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