Isuzu KB P190. Manual — part 735

Engine Mechanical – V6

Page 6A1–163

Page 6A1–163

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 – 237

26

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

Figure 6A1 – 238

27

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

Figure 6A1 – 239

28

Remove Tool No. EN 46105–1 from the left-hand cylinder head camshafts.

Engine Mechanical – V6

Page 6A1–164

Page 6A1–164

Right-hand Secondary Timing Chain Components – Excluding MY06 Update

1

Install the primary timing chain components, refer to Primary Timing chain Components in this Section.

2

Using Tool No. EN46111 (1), rotate the crankshaft in
a clockwise direction until the crankshaft sprocket
timing mark (2) is aligned with the indexing mark (3)
on the oil pump housing.

Figure 6A1 – 240

CAUTION

In order to install Tool No. EN 46105 onto the
camshafts, rotate the camshafts. There
should be no need to rotate the camshaft
more than 45 degrees.

Figure 6A1 – 241

3

Install Tool No. EN 46105–1 (1) onto the rear of the
right-hand cylinder head camshafts (2).

Figure 6A1 – 242

Engine Mechanical – V6

Page 6A1–165

Page 6A1–165

4

Install Tool No. EN 46105–2 (1) onto the rear of the
left-hand cylinder head camshafts (2).

Figure 6A1 – 243

5

Install the right-hand secondary timing chain (1) onto
the camshaft sprockets (2) and the right hand
camshaft intermediate sprocket (3) aligning the chain
in the following manner:

Figure 6A1 – 244

6

Place the secondary timing chain around the right-
hand camshaft intermediate outer sprocket, aligning
the bright plated timing chain link (1) with the
alignment access hole (2) in the inner sprocket.

Figure 6A1 – 245

Engine Mechanical – V6

Page 6A1–166

Page 6A1–166

7

Wrap the secondary timing chain around both right-
hand camshaft sprockets.

Figure 6A1 – 246

CAUTION

Ensure that when aligning the right-hand
secondary timing chain to the right-hand
camshaft sprockets, that the triangular
timing marks (1) on the sprocket are used,
NOT the circular mark.

8

Align the bright plated timing chain link (2) with the
exhaust sprocket alignment triangle mark or circular
mark.

Figure 6A1 – 247

9

Align the bright plated timing chain link (1) with the
intake sprocket alignment triangle mark (2).

Figure 6A1 – 248