Isuzu N-Series. Manual — part 503
Engine Mechanical (4HK1-TC) 6A-117
• Use a clutch aligner to install the clutch plate
assembly on the flywheel.
Legend
1. Clutch Aligner
7. Install the clutch pressure plate assembly.
• Install the clutch pressure plate assembly on
the flywheel so that the installation hole of the
clutch pressure plate assembly matches with
the dowel pins of the flywheel.
• Tighten the clutch pressure plate assembly in
the order shown in the drawing.
Tighten:
Bolts to 40 N
⋅m (4.1 kg⋅m/30 lb⋅ft)
8. Install the transmission assembly.
Refer to “Engine Assembly”.
9. Install the starter motor on the clutch housing with
bolts.
Tighten:
Bolts to 76 N
⋅m (7.7 kg⋅m/56 lb⋅ft)
• Install the earth cable of the starter motor.
• Connect the front frame harness connector.
N6A6218E
N6A6217E
N6A6216E
N6A6215E
6A-118 Engine Mechanical (4HK1-TC)
Torque Specifications
Special Tool
N6A6223E
Illustration
Tool Number /
Description / Remarks
5-8840-2230-0
(EN-47680)
Crankshaft Stopper
5-8840-0266-0 (J-45059)
Angle Gauge
Engine Mechanical (4HK1-TC) 6A-119
Front Cover
Component
Legend
1. Adjust Plate
2. Generator
3. Front Cover
4. Oil Pan Gasket
5. Oil Pan
6. Rubber Assembly (For Europe)
7. Front Slinger
8. Front Oil Seal
9. Crankshaft Pulley
10. Water Pump Assembly
11. Fan Belt
12. Water Pump Pulley
13. Fan Assembly
Removal
1. Remove the front oil seal.
Refer to “Crankshaft Front Oil Seal”.
2. Remove the oil pan
Refer to “Oil Pan”.
3. Remove the water pump.
Refer to “Water Pump” in Section 6B.
4. Remove the front cover.
N6A6224E
6A-120 Engine Mechanical (4HK1-TC)
• Remove the generator adjust plate.
• Remove the oil relief valve (arrowed), loosen
the front cover installation bolts and remove the
front cover.
5. Remove the oil cooler bypass valve.
• Pull out the oil cooler bypass valve from the
cylinder block.
Installation
1. Install the oil cooler bypass valve.
• Insert the oil cooler bypass valve into the
cylinder block. Be sure not to insert in a wrong
direction.
2. Install the front cover.
• Clean the cylinder block front surface. In
particular, remove liquid gasket leaked during
installation of the crankcase.
• Install two O-rings and apply liquid gasket
(ThreeBond 1207B, 1207C, 1207F or
equivalent) along with the groove of the front
cover installation surface.
N6A6225E
N6A6226E
Beat width:
1.5 – 5mm (0.059 – 0.20 in)
Beat height:
0.3 – 1.5mm (0.012 – 0.059 in) from
the joint surface
N6A6227E
N6A6228E
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