Isuzu N-Series. Service manual — part 480
Engine Mechanical (4HK1-TC) 6A-25
2. Remove the gasket.
Legend
1. Head Cover
3. Remove the fuel injector harness connector.
4. Remove the head cover case.
5. Remove the gasket.
Legend
1. Head Cover Case
2. Fuel Injector Harness Connector
Installation
1. Install the gasket on the lower cover.
2. Install the head cover case.
Tighten:
Bolts to 18 N
⋅m (1.8 kg⋅m/13 lb⋅ft)
3. Install the fuel injector harness connector.
Caution:
Push it in thoroughly until the claws of the lock raise.
Legend
1. Head Cover Case
2. Fuel Injector Harness Connector
4. Install the gasket on the head cover.
5. Install the head cover and tighten up according to
the orders given on the figure.
Tighten:
Bolts to 18 N
⋅m (1.8 kg⋅m/13 lb⋅ft)
N6A6513E
N6A6028E
N6A6028E
N6A6029E
6A-26 Engine Mechanical (4HK1-TC)
Torque Specifications
N6A6517E
Engine Mechanical (4HK1-TC) 6A-27
Cylinder Head Cover (For Europe)
Components
Legend
1. Head Cover
2. Gasket
3. Sound Insulation Cover
4. Gasket
5. Head Lower Cover
Removal
1. Drain engine coolant. Refer to Engine Cooling
System section.
2. Remove EGR valve connector.
4
1
2
3
5
N6A6024E
6A-28 Engine Mechanical (4HK1-TC)
3. Remove the EGR pipe.
Legend
1. EGR Adapter
2. Water Return Pipe
3. EGR Cooler
4. EGR Pipe
5. Water Feed Pipe
4. Remove the cooling water pipes.
5. Remove the EGR adapter.
6. Remove the EGR cooler.
7. Remove the EGR valve.
Caution:
After removing the EGR valve and EGR adapter, seal
the opening so that foreign matter does not enter.
8. Remove the sound insulation cover (1).
9. Remove the head cover (2)
10. Remove the gasket.
11. Remove the fuel injector harness connector (2).
12. Remove the head lower cover (1).
13. Remove the gasket.
Installation
1. Install the gasket on the head lower cover (1).
2. Install the head lower cover (1).
Tighten:
Bolts to 18 N
⋅m (1.8 kg⋅m/13 lb⋅ft)
3. Install the fuel injector harness connector (2).
Caution:
Push it in thoroughly until the claws of the lock raise.
N6A6025E
N6A6491E
1
2
N6A6027E
N6A6028E
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