Isuzu KB P190. Manual — part 231

ENGINE MECHANICAL 6A – 119

Installation

1. Exhaust Manifold

1) Install the exhaust manifold to the cylinder head with

the manifold gasket.

2) Tighten the exhaust manifold bolts and nuts to the

specified torque a little at a time.

Exhaust Manifold Bolt and Nuts

Torque N·m(kg·m/Ib

ft)

24 (2.4/17)

3) Install the exhaust manifold bracket to the manifold

and the cylinder body.

Manifold Bracket Bolt Torque

N·m(kg·m/Ib ft)

19 (1.9/14)

RTW46ASH001301

2. Oil Cooler with Oil Filter

1) Install the O-ring to the oil filter body flange groove.

2) Install the oil filter body to cylinder block and tighten to

the specified torque.

Oil Filter Body Bolt and Nut

Torque N·m(kg·m/Ib

ft)

BOLT 19 (1.9/14)

NUT 24 (2.4/17)

3. Generator Bracket

Install the generator bracket to the cylinder body and
tighten the bracket bolts to the specified torque.

Bracket Bolt Torque

N·m(kg·m/Ib ft)

40 (4.1/30)

027R100003

027R100004

066RY00001

6A – 120 ENGINE MECHANICAL

4. Water Inlet Pipe

1) Tighten the water inlet pipe bolts to the specified

torque.

Suction Pipe Bolt Torque

N·m(kg·m/Ib ft)

19 (1.9/14)

5. Generator and Adjusting Plate

1) Install the generator to the bracket (1).

2) Temporarily tighten the generator bolt (2) and

adjusting plate bolts (3).

The bolts will be finally tightened after installation of
the cooling fan drive belt.

3) Connect the vacuum pump rubber hose (4) to the

vacuum pump (5), and the oil pan (6).

6. Vacuum Pump Oil Return Hose

Connect the vacuum oil pipe (7) to the vacuum pump, and
the cylinder body

052R300001

7. Compressor Bracket

1) Install the compressor bracket to the cylinder head.

2) Tighten the bracket bolts to the specified torque.

Bracket Bolt Torque

N·m(kg·m/Ib ft)

M8×1.25

19 (1.9/14)

M10×1.25

40 (4.1/30)

066RY00002

032R300001

042RY00003

ENGINE MECHANICAL 6A – 121

8. Turbocharger

1) Install the turbocharger and the gasket.

2) Temporarily tighten the turbocharger nuts at this time.

They will be fully tightened after the installation of the
turbocharger oil pipe.

Always install new nuts and new gasket.

3) Install the oil return pipe with gasket to the

turbocharger.

4) Tighten the turbocharger oil return pipe to the

specified torque.

Bracket Bolt Torque

N·m(kg·m/Ib ft)

8 (0.8/6)

5) Before installing the oil feed pipe, supply 10 - 20 cc of

clean engine oil to the turbocharger center housing
through the oil feed opening.

6) Turn the rotating assembly with your hand to

thoroughly lubricate the internal parts.

7) Tighten the oil feed pipe to the specified torque.

Turbocharger Oil Feed Pipe Joint

Bolt Torque

N·m(kg·m/Ib ft)

M10×1.5

22 (2.25/16)

M14×1.5

54 (5.5/40)

RTW46ASH001501

8) Tighten the turbocharger nut to the specified torque.

Turbocharger Nut Torque

N·m(kg·m/Ib ft)

27 (2.7/20)

036R100001

027R100005

027R100002

6A – 122 ENGINE MECHANICAL

RTW46ASH001601

9) Install the water feed adapter (1) with the gaskets to

turbocharger and tighten to the specified torque.

Adapter Torque

N·m(kg·m/Ib ft)

39 (4.0/29)

10) Install the water feed pipe with the gaskets and tighten

to the specified torque.

Water Return Pipe Torque

N·m(kg·m/Ib ft)

39 (4.0/29)

11) Install the water return pipe with the gaskets and

tighten to the specified torque.

Water Return Torque

N·m(kg·m/Ib ft)

39 (4.0/29)

12) Clamp the water feed pipe to the oil return pipe of the

turbocharger.

Fixing Bolt (3) Torque

N·m(kg·m/Ib ft)

8 (0.8/6)

13) Install the hoses for the water feed and return.

9. Catalytic Converter

Install the catalytic converter with gasket and tighten the
nut to the specified torque.

Catalytic converter Nut Torque

N·m(kg·m/Ib ft)

27 (2.7/20)

Do not install the catalytic converter, if drop down it.

10. Heat Protector

Install the heat protector and tighten the bolt to the
specified torque.

Heat Protector Bolt Torque

N·m(kg·m/Ib ft)

9 (0.9/6.5 Ib in)

033R300002

11. Cooling Fan Pulley

1) Install the cooling fan pulley to the water pump.

2) Tighten the cooling fan pulley nuts to the specified

torque.

Pulley Nut Torque

N·m(kg·m/Ib ft)

8 (0.8/6)

12. Oil Cooler Water Pipe

13. Fuel Leak Off Pipe

14. Oil Pressure Warning Switch

027R100007