Isuzu KB P190. Manual — part 733

Engine Mechanical – V6

Page 6A1–155

Page 6A1–155

24

Verify the proper placement of the primary timing
chain tensioner gasket tab (1).

25

Tighten the primary timing chain tensioner bolts (2) to
the correct torque specification.

Primary timing chain tensioner
attaching bolt torque specification. . ...20.0 – 26.0 Nm

Figure 6A1 – 216

26

Release the primary timing chain tensioner (1) by
pulling out Tool No. EN 46112 (2) and unlocking the
tensioner shaft.

Figure 6A1 – 217

Engine Mechanical – V6

Page 6A1–156

Page 6A1–156

27

Verify the primary and left-hand secondary timing
chain timing mark alignments (1 to 12).

Figure 6A1 – 218

28

Remove Tool No. EN 46105 from the left-hand and right-hand cylinder head camshafts.

Primary Timing Chain Components – MY06 Update

1

If previously removed, install the left-hand secondary
timing chain components, refer to Left-hand
Secondary Timing Chain Components in this Section.

CAUTION

The right-hand camshaft intermediate
sprocket (2) is marked with the letters RB
and ‘FRONT’, and the left-hand sprocket (1)
is marked with the letters LB and 'FRONT'
Ensure the correct sprocket is used and the
FRONT text is facing forwards when
installed.

2

Ensure the right-hand camshaft intermediate
sprocket (2) is selected and orientated correctly.

Figure 6A1 – 219

Engine Mechanical – V6

Page 6A1–157

Page 6A1–157

3

Install the right-hand camshaft intermediate
sprocket (2).

4

Install the sprocket bolt (1) and tighten to the correct
torque specification.

Camshaft intermediate sprocket
attaching bolt torque specification. . ...58.0 – 72.0 Nm

Figure 6A1 – 220

5

Ensure that the crankshaft sprocket timing mark (1) is
aligned with the indexing mark (2) on the oil pump
housing.

Figure 6A1 – 221

6

Install the primary timing chain (1).

Figure 6A1 – 222

Engine Mechanical – V6

Page 6A1–158

Page 6A1–158

7

Wrap the primary timing chain around the large
sprockets of each camshaft intermediate sprocket
and the crankshaft sprocket, aligning the bright plated
chain links as follows:

Figure 6A1 – 223

8

The left-hand camshaft intermediate sprocket timing
mark (1) will align with a bright plated primary timing
chain link (2).

Figure 6A1 – 224

9

The right-hand camshaft intermediate sprocket timing
mark (1) will align with a bright plated primary timing
chain link (2).

Figure 6A1 – 225