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Isuzu NKR 4J Series - Page 132

Isuzu NKR 4J Series
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GENERAL ENGINE MECHANICAL 6A – 65
7. Piston Cooling Oil Pipe
1) Fix the oil jet pipes with knock pins on the cylinder
block.
2) Install the oil pipe for piston cooling in the cylinder
block, tightening a relief valve
!
and four joint bolts
"
to the specified torque.
Oil pipe fixing bolts Nm (kgm/lbft)
M8: 19 (1.9/14)
M6: 8 (0.8/69 lbin.)
Relief valve fixing bolt Nm (kgm/lbft)
29 (3.0/22)
CAUTION:
After installed the piston assembly. Check and see
that there is appropriate clearance between pistons
and oil jet pipes by rotating crankshaft slowly.
6. Oil Pump Assembly
Above works refer to “OIL PUMP” Section in this manual.
5a. Timing Pulley Housing
5. Timing Gear Housing
4. Front Oil Seal (Belt Drive Model)
3a. Timing Belt and Pulley
6) Camshaft Timing Pulley
5) Timing Belt
4) Flange: Camshaft Pulley
3) Timing Pulley Lower Cover
2) Timing Pulley Upper Cover
1) Crankshaft Damper Pulley
3. Timing Gear (Gear Drive Model)
11) Crankshaft Gear
10) Crankshaft Timing Gear
9) Idle Gear
8) Idler Gear "B" and Shaft
7) Injection Pump
6) Timing Gear Oil Pipe
5) Timing Gear Case Cover
4) Crankshaft Damper Pulley
3) Cooling Fan Assembly
2) AC Generator, Power Steering Pump Drive Belt
1) Fan Shroud
Above works refer to “CRANKSHAFT” Section in this
manual.
6A-65-1.tif

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