Isuzu KB P190. Manual — part 347

6A-28 ENGINE MECHANICAL (4JK1/4JJ1)

Components (High Output)

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Legend

1. Intake

Duct

2. Intake

Throttle

3. Intake Throttle Gasket

4. Intake Manifold Gasket

5.

Intake

Manifold

6. EGR Valve Assembly Gasket

7. EGR Valve Assembly

8. Bracket

ENGINE MECHANICAL (4JK1/4JJ1) 6A-29

Removal

1. Remove the engine cover.

2. Disconnect the connectors.

• Fuel

Injector

• Throttle

Assembly

• EGR

Valve

• Glow

Plug

• Barometric

Sensor

• A/C Compressor Connector

3. Remove the A/C belt

4. Remove the A/C compressor.

5. Remove the A/C compressor bracket.

6. Remove the intake air duct (Standard output).

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Legend

1. A/C Compressor Bracket

2. Intake Air Duct

3. A/C

Compressor

7. Remove the intercooler (High output).

• Disconnect the BARO sensor harness

connector (2).

• Remove the two intake hoses.
• Remove the intercooler (1).

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8. Remove the injector leak-off hose (1).

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9. Remove the engine oil level gauge guide tube.

10. Remove the EGR valve.

6A-30 ENGINE MECHANICAL (4JK1/4JJ1)

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11. Remove the injection pipes.

• Remove sequentially from No.1 cylinder.

12. Disconnect the vacuum hose of swirl control valve

(1).

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13. Remove the throttle assembly and gasket.

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Legend

1. Throttle

Assembly

2. Intake

Manifold

14. Remove the intake manifold.

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15. Remove the intake manifold gasket.

ENGINE MECHANICAL (4JK1/4JJ1) 6A-31

Installation

1. Install the intake manifold gasket.

2. Install the intake manifold.

• Tighten the nuts and bolts in the order

described in the drawing.

Tightening torque: 25 N

⋅⋅⋅⋅m (2.5 kg⋅⋅⋅⋅m / 18 lb ft)

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3. Install the throttle assembly and gasket.

• Tighten the bolts to the specified torque.

Tightening torque: 10 N

⋅⋅⋅⋅m (1.0 kg⋅⋅⋅⋅m / 87 lb in)

4. Install the vacuum hose of swirl control valve.

5. Install the injection pipe (fuel rail - fuel injector).

• It installs sequentially from No. 4 cylinder.

Tightening torque: 29 N

⋅⋅⋅⋅m (3.0 kg⋅⋅⋅⋅m / 22 lb ft)

6. Install the EGR valve.

• Tighten the nuts to the specified torque.

Tightening torque: 27 N

⋅⋅⋅⋅m (2.8 kg⋅⋅⋅⋅m / 20 lb ft)

7. Install the engine oil level guide tube.

Tighten the nuts to the specified torque.

Tightening torque: 25 N

⋅⋅⋅⋅m (2.5 kg⋅⋅⋅⋅m / 18 lb ft)

8. Install the intercooler (High output).

9. Connect the connector of other parts.

• Fuel

Injector

• Throttle

Assembly

• EGR

Valve

• Glow

Plug

• Barometric

Sensor

• A/C Compressor Connector

10. Install the leak-off hose.

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Legend

1. Injector Leek-off Hose

11. Install the intake air duct.

Tightening torque: 25 N

⋅⋅⋅⋅m (2.5 kg⋅⋅⋅⋅m / 18 lb ft)

12.Install the A/C compressor bracket.

Tightening torque: 25 N

⋅⋅⋅⋅m (2.5 kg⋅⋅⋅⋅m / 18 lb ft)

13.Install the A/C compressor and A/C compressor

connector.

Tightening torque: 44 N

⋅⋅⋅⋅m (4.5 kg⋅⋅⋅⋅m / 33 lb ft)

14.Install the A/C belt.

Check the A/C belt tension.

Depress the A/C belt mid-portion with 98 N (10 kg /

22 lb) force.

Standard deflection: 7.6 - 9.2 mm (0.29 - 0.36 in)

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15. Install the engine cover.