Isuzu KB P190. Manual — part 350

6A-40 ENGINE MECHANICAL (4JK1/4JJ1)

Torque Specifications

RTW76ALF000901

ENGINE MECHANICAL (4JK1/4JJ1) 6A-41

Turbocharger (High Output)

Components

RTW76ALF000401

Legend

1. Turbocharger Assembly Gasket

2. Turbocharger

Assembly

3. Turbocharger Heat Protecter

4. Water Feed and Return Pipe Gasket

5. Water Feed and Return Pipe

6. Oil Feed and Return Pipe Gasket

7. Oil Feed and Return Pipe

8. Catalyst Converter Gasket

9. Catalyst

Converter

6A-42 ENGINE MECHANICAL (4JK1/4JJ1)

Removal

1. Drain the engine coolant.

2. Remove the engine cover.

3. Remove the intercooler.

• Disconnect the BARO sensor harness

connector (2).

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

RTW76ASH000501

4.

Disconnect the vacuum hose from the

turbocharger actuator.

5. Remove the air intake duct from the turbocharger

and the air cleaner.

6. Remove the front exhaust pipe.

RTW56ASH018301

Legend

1. Gasket

2. Front Exhaust Pipe (4

×2 High Ride Suspention,

4

×4)

3. Gasket

4. Front Exhaust Pipe (4

×2 Except High Ride

Suspention)

7. Remove the heat protector of the turbocharger.

• Remove the mud cover of front RH fender skirt

(4

×4 only).

• Loosen the bolt of Turbocharger bracket.

8. Remove the catalyst converter.

9. Remove the turbocharger bracket.

10. Remove the oil feed and return pipe.

11. Remove the water feed and return pipe from the

turbocharger.

RTW76ASH001001

12.

Remove the turbocharger from the exhaust

manifold.

ENGINE MECHANICAL (4JK1/4JJ1) 6A-43

Inspection

Wheel shaft axial play

Use a dial gauge to measure the wheel axle shaft play
when a force of 12 N (1.2kg / 2.6 lb) is alternately
applied to both sides of the compressor wheel.

Axial play

mm (in)

Standard 0.03

− 0.06 (0.0012 − 0.0024)

Limit 0.09

(0.0035)

LNW21BSH022201

Wheel shaft and bearing clearance

Use a dial gauge to measure the clearance between the
wheel shaft and the bearing.

Clearance mm

(in)

Standard 0.056

− 0.127 (0.0022 − 0.0050)

Limit 0.14

(0.0055)

LNW21BSH022301

Legend

1. Oil Outlet

2. Oil Intake

Actuator operation

1. Install a vacuum pump (2) to the actuator (1).

LNW71JSH000201

2. Operate the vacuum pump and apply vacuum

pressure to the actuator.

Working vacuum pressure

kPa (mmHg / psi)

52.8 (396 / 7.66)