Isuzu engine 4j series. Service manual - part 72

6C - 32  ENGINE FUEL

4. A/C Compressor Drive Belt (A/C Model)

•

Loosen A/C compressor idler pulley lock nut, adjust
bolt, and remove the drive belt.

5. AC Generator Drive Belt

•

Loosen AC generator mounting bolt (under side) and
adjust plate lock bolt, and remove the drive belt.

6. Power Steering Pump & Bracket Assembly (P/S Model)

•

Loosen power steering oil pipe bracket and clip.

•

Remove P/S pump bracket assembly and hang the
P/S pump bracket assembly.

7. Crankshaft Dumper Pulley

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ENGINE FUEL  6C - 33

8. Timing Pulley Upper Cover

9. Timing Pulley Lower Cover

10. Flange; Camshaft Pulley

11. Timing Belt

•

Prepare a fixing bolt (M8 x 40, P=1.25)

•

Turn crankshaft timing pulley in the normal direct
pulley side mark to timing pulley housing side mark.

•

Make sure that the camshaft pulley and injection
timing pulley fixing bolt holes are set to each other.
Then Fit in a fixing bolt and lightly tighten.

•

No. 1 cylinder should be at top dead center.
If the fixing bolt holes are not set (No. 4 cylinder is at
top dead center) give another turn.

•

Remove tensioner and timing belt.

WARNING

•

If crankshaft and camshaft and turned with timing
belt being not mounted, piston and valve will
interfere with each other.  Therefore, the shafts
must not be turned.

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6C - 34  ENGINE FUEL

12. Injection Pump Timing Pulley

•

Install the stopper bolt 

!

 to the timing pulley to

prevent it from turning.

•

Use the timing pulley puller 

"

 to remove the injection

pump timing pulley.
Timing Pulley Puller: 5-8840-0086-0

•

Remove the stopper bolt.

13. Air Intake Duct

14. Injection Pump Control Cable

•

Remove the control cable bracket bolt and remove the
control lever side.

15.  Fuel Hose

•

Disconnect the fuel feed hose and fuel return hose.

16. CSD Water Hose

17. Injection Pump Harness

18. Injection Pipe

19. Injection Pump Assembly

•

Remove the pump bracket bolt engine side.

•

Remove the adjust lock bolt.

•

Remove the injection pump fixing bolt and take out
injection pump.

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ENGINE FUEL  6C - 35

INSTALLATION

19.  Injection Pump Assembly

•

Put the timing pulley housing side and injection pump
side setting marks together, and temporarily tighten.

•

After adjusting injection timing retighten.

•

Mount rear bracket on cylinder block and tighten to the
specified torque.

N∙m (Kg∙m/lb∙ft)

                                                                                                                   

19 (1.9/14)

                                                                                                                   

•

Install adjust lock bolt and lightly tighten.

•

After adjusting injection timing, retighten.

18. Injection Pipe

•

 Connect the pump side and nozzle side of the pipe,
and tighten securely.

•

Install clip where it was.

Sleeve Nut Torque

N∙m (Kg∙m/lb∙ft)

                                                                                                                   

29 (3.0/22)

                                                                                                                   

17. Injection Pump Harness

•

Mount engine harness and connect it to switches.

16. CSD Water Hose

•

Connect the water hose and tighten clip securely.

15. Fuel Hose

•

Connect the fuel feed hose and fuel return hose.

•

Connect the rear off hose.

14. Injection Pump Control Cable

1) Install the Control wire to the engine control lever.
2) Hold the accelerator lever 

!

 in the fully closed

position and stretch the control cable 

"

 in the

direction indicated by the arrow to remove any slack.

3) Tighten the accelerator cable bracket bolt.

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