Isuzu KB P190. Manual — part 394

FUEL SYSTEM (4JK1/4JJ1) 6C-35

9. Install the timing chain tensioner.

Tighten the nut to the specified torque.

Tightening torque: 10 N

⋅⋅⋅⋅m (1.0 kg⋅⋅⋅⋅m/ 87 lb in)

RTW56CSH001701

Legend

1. Timing Chain Tensioner

2. Gasket

3. Nut

10. Unlock the tensioner hook.

• Press the place of the arrow in the figure.
• The hook is opened. The plunger pushes the

tension lever.

RTW56ASH020401

11. Tighten the fuel supply pump shaft nut.

Tighten the nut (1) to the specified torque.

Tightening torque: 130 N

⋅⋅⋅⋅m (13.3 kg⋅⋅⋅⋅m / 96 lb ft)

RTW56CSH001601

12. Tighten the timing chain tension lever pivot bolt to

the specified torque.

Tightening torque: 27 N

⋅⋅⋅⋅m (2.8 kg⋅⋅⋅⋅m / 20 lb ft)

13. Turn the crank pulley two rotations (720°CA).

14. Check mark (1) on intake camshaft and exhaust

camshaft to mark of camshaft bearing cap.

RTW56ASH006901

6C-36 FUEL SYSTEM (4JK1/4JJ1)

15. Install the cylinder head cover.

Refer to "Cylinder Head Cover" in ENGINE

MECHANICAL section.

16.

Apply liquid gasket (ThreeBond TB-1207C or

equivalent) to timing chain cover upper (1).
• Attach cover within 5minutes after the

application of gasket.

RTW56CSH002101

17. Install the timing chain cover upper (1).

Tighten the bolt to the specified torque.
• Apply Loctite #262 or equivalent to the bolt and

stud threads of cylinder head side (2).

Tightening torque: 25 N

⋅⋅⋅⋅m (2.5 kg⋅⋅⋅⋅m / 18 lb ft)

RTW76CSH001201

18.

Apply liquid gasket (ThreeBond TB-1207C or

equivalent) to the timing chain cover lower (1).
• Attach the cover within 5 minutes of applying

the liquid gasket.

RTW56CSH002301

19. Install the timing chain cover lower.

Tighten the nuts and bolts to the specified torque.

Tightening torque: 10 N

⋅⋅⋅⋅m (1.0 kg⋅⋅⋅⋅m / 87 lb in)

20.

Install the noise cover to the timing chain cover

lower.

Tighten the bolts to the specified torque.

Tightening torque: 10 N

⋅⋅⋅⋅m (1.0 kg⋅⋅⋅⋅m / 87 lb in)

21. Connect the connectors.

• Supply

pump

• Camshaft position sensor

22. Install the fuel rail assembly.

• Refer to the Install procedure for "Fuel rail

assembly" in this manual.

23. Install the A/C compressor bracket.

Tighten the bolts to the specified torque.

Tightening torque: 25 N

⋅⋅⋅⋅m (2.5 kg⋅⋅⋅⋅m / 18 lb ft)

FUEL SYSTEM (4JK1/4JJ1) 6C-37

24. Install the A/C compressor.

RTW56ASH004201

Legend

1. A/C Compressor Bracket

2. Intake

Duct

3. A/C

Compressor

Tighten the bolts to the specified torque.

Tightening torque: 44 N

⋅⋅⋅⋅m (4.5 kg⋅⋅⋅⋅m / 33 lb ft)

25. Install the battery.

26. Install the A/C compressor adjust pulley.

RTW56ASH010601

Legend

1. Bolt

2. Nut

Tighten the nut and bolt to the specified torque.

Bolt Tightening torque: 25 N

⋅⋅⋅⋅m (2.5 kg⋅⋅⋅⋅m/18 lb ft)

Nut Tightening torque: 25 N

⋅⋅⋅⋅m (2.5 kg⋅⋅⋅⋅m/18 lb ft)

27. Install the A/C compressor drive belt.

Refer to the drive belt tension check procedure for

Heating and air conditioning in this manual.

28. Install the cooling fan.

29. Install the fan guide.

30. Install the radiator upper hose.

31. Replenish the engine coolant.

Fuel Supply Pump Relearn Procedure

The ECM goes through a fuel supply pump learn

procedure to fine tune the current supplied to the fuel

rail pressure (FRP) regulator. This learning process in

only performed when the engine is idling.

1. Install the scan tool.

2. Turn ON the ignition, with the engine OFF.

3. Command the Supply Pump Learn Reset with the

scan tool.

4. Observe the Supply Pump Status parameter with

the scan tool. Confirm the scan tool indicates Not

Learn.

5. Start the engine and let idle until engine coolant

temperature (ECT) reads 149°F (65°C) or higher

while observing Supply Pump Status parameter

with the scant tool. The scan tool changes status

Not Learn > Learning > Learned.

6. If the ECM has correctly learned the fuel supply

pump current adjustment, the Supply Pump Status

parameter on the scan tool will repeatedly indicate

Learning and Learned.

6C-38 FUEL SYSTEM (4JK1/4JJ1)

Torque Specifications

RTW56CLF001501