Isuzu KB P190. Service manual — part 391

FUEL SYSTEM (4JK1/4JJ1) 6C-23

6. Disconnect the injection pipe sleeve nut (1).

Note: Cover the areas exposed during parts removal to
prevent the entry of foreign material into the fuel
system.

RTW76CSH000701

7. Disconnect the vacuum pipe and swirl control

solenoid valve from the fuel rail bracket.

8. Remove the fuel rail and fuel rail bracket.

Note:

• Do not grasp the pressure sensor, during the

fuel rail removal procedure.

• Take care not to damage the connector unit of

the pressure sensor.

RTW76CSH000801

Legend

1. Fuel

Rail

2. Fuel Rail Bracket

3. Vacuum

Pipe

4. Swirl Control Solenoid Valve

6C-24 FUEL SYSTEM (4JK1/4JJ1)

Disassembly

1. Remove the fuel pressure limiter.

2. Remove the pressure sensor.

RTW76CSH000101

Legend

1. Fuel

Rail

2. Fuel Rail Pressure Sensor

3. Fuel Pressure Limiter

Reassembly

1. Install the fuel pressure limiter.

Tightening torque: 172 N

⋅⋅⋅⋅m (17.5 kg⋅⋅⋅⋅m/127 lb ft)

2. Install the fuel pressure sensor.

Tightening torque: 98 N

⋅⋅⋅⋅m (10.0 kg⋅⋅⋅⋅m/72 lb ft)

Installation

1. Tighten the fuel rail bracket and fuel rail using the

specified torque.

Tightening torque: 25 N

⋅⋅⋅⋅m (2.5 kg⋅⋅⋅⋅m/18 lb ft)

2. Tighten the vacuum pipe to the fuel rail bracket

using the specified torque.

Tightening torque: 10 N

⋅⋅⋅⋅m (1.0 kg⋅⋅⋅⋅m/87 lb in)

3. Tighten the swirl control solenoid valve to the fuel

rail bracket using the specified torque.

Tightening torque: 20 N

⋅⋅⋅⋅m (2.0 kg⋅⋅⋅⋅m/14 lb ft)

Note:

• Do not grasp the pressure sensor, during the

fuel rail removal procedure.

• Take care not to damage the connector unit of

the pressure sensor.

RTW76CSH000801

Legend

1. Fuel

Rail

2. Fuel Rail Bracket

3. Vacuum

Pipe

4. Swirl Control Solenoid Valve

4. Tighten the fuel pipe using the mounting sleeve

nut and the specified torque.

Tightening torque: 25 N

⋅⋅⋅⋅m (2.5 kg⋅⋅⋅⋅m/18 lb ft)

5. Connect the fuel rail pressure sensor harness

connector.

FUEL SYSTEM (4JK1/4JJ1) 6C-25

6. Tighten the fuel leak off pipe and hose (1) using

the mounting eyebolt using the specified torque.

Tightening torque: 10 N

⋅⋅⋅⋅m (1.0 kg⋅⋅⋅⋅m/87 lb in)

RTW76CSH000401

7. Install the fuel hose (1).

RTW76CSH000601

8. Install the fuel feed pipe (1) for supply pump and

tighten the bolts to the specified torque.

Tightening torque: 44 N

⋅⋅⋅⋅m (4.5 kg⋅⋅⋅⋅m/33 lb ft)

RTW76CSH000501

9. Install the starter motor.

• Refer to removal procedure for engine

electricals in this manual.

6C-26 FUEL SYSTEM (4JK1/4JJ1)

Torque Specifications

RTW76CLF000401