Isuzu KB P190. Service manual — part 744

Engine Mechanical – V6

Page 6A1–199

Page 6A1–199

13

Remove the bolt (1) attaching left-hand intake
camshaft sprocket (2) and remove the sprocket.

Figure 6A1 – 325

Clean

1

Clean the exterior of each camshaft sprocket with solvent.

Safety glasses must be worn when using
compressed air.

2

Dry the timing components with compressed air.

Inspect

1

Inspect the front of each sprocket for the following:
•

Sprocket damage (1), and

•

Sprocket bolt seating inner hub damage (2).

Figure 6A1 – 326

Engine Mechanical – V6

Page 6A1–200

Page 6A1–200

2

Inspect the back of each sprocket for the following:
•

Sprocket damage (1),

•

Camshaft locating pin damage (2) and,

•

Camshaft seating/sealing inner hub flange
damage (3),

N O T E

These checks apply to both the inlet and
exhaust camshaft sprockets.

Figure 6A1 – 327

Reinstall

Reinstallation of the camshaft sprockets is the reverse of the removal procedure, noting the following:

1

Align the sprockets and timing chain with the marks made during removal.

2

Tighten the camshaft sprocket bolts to the correct torque specification.

Camshaft sprocket attaching
bolt torque specification . . . . . . ..49.0 – 67.0 Nm

3

Remove the timing chain retention tools.

Engine Mechanical – V6

Page 6A1–201

Page 6A1–201

3.20 Camshaft

Remove

Right-hand Side

1

Remove the right-hand cylinder head camshaft sprockets, refer to

3.18 Camshaft Sprocket

.

N O T E

Tool No. EN-46105–1 was installed as part of the
right-hand cylinder head camshaft sprocket
removal procedure.

2

Remove the Tool No. EN-46105–1 (1) from the right-
hand cylinder head camshafts (2).

N O T E

Tool No. EN-46105 was installed as part of the
right-hand cylinder head camshaft sprocket
removal procedure.

Figure 6A1 – 328

3

Observe the markings (1) on the bearing caps. Each
bearing cap is marked to identify its location. The
markings have the following meanings:
•

The raised feature must always be oriented
toward the centre of the cylinder head.

•

An I indicates the intake camshaft.

•

An E indicates the exhaust camshaft.

•

The number indicates the journal position from
the front of the engine.

Figure 6A1 – 329

Engine Mechanical – V6

Page 6A1–202

Page 6A1–202

4

Remove the camshaft bearing cap bolts (1) and
caps (2).

Figure 6A1 – 330

5

Remove the camshafts (1).

Figure 6A1 – 331