Isuzu NHR 4J Series, Workshop Manual

Page: 89 / 406

6A – 22 GENERAL ENGINE MECHANICAL
6. Camshaft Timing Gear (Gear Drive Model)
1) Install the camshaft timing gear to the camshaft.
The timing gear mark (“Y-Y”) must be facing outward.
2) Tighten the timing gear to the specified torque
Timing Gear Bolt Torque
N ∙ m (kg ∙ m/lb ∙ ft)
64 (6.5/47)
5. Oil Pump Assembly
4. Oil Pan Assembly
Above works refer to “OIL PUMP” Section in this manual.
3. Cylinder Block Rear Plate
• Tighten cylinder block rear plate fixing bolts to the
specified torque.
Rear Plate Bolt Torque N ∙ m (kg ∙ m/lb ∙ ft)
82 (8.4/61)
2. Flywheel
• Apply engine oil to fixing bolts.
• Tighten the flywheel bolts to the specified torque in two
steps using the Angular Tightening Method.
Follow the numerical order shown in the illustration.
Flywheel Bolt Torque N ∙ m (kg ∙ m/lb ∙ ft)
1st Step (Snug Torque) 2nd Step (Final Torque)
59 (6.0/43) 60° - 90°
1. Cylinder Head Assembly
1) Hot plug
•
Set the nock ball in the positioning groove on the
cylinder head side according to the order of the
cylinders, and hit it lightly with a plastic hammer.
NOTE:
After being pressed into the cylinder head, the hot
plugs were provided with surface grinding.
Accordingly, their dimensions are different
individually among them, and take care not confuse
the order of the cylinders.
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