Isuzu KB P190. Manual — part 727

Engine Mechanical – V6

Page 6A1–131

Page 6A1–131

3

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

4

Ensure that Tool No. EN 46105 is fully seated onto
the camshafts.

CAUTION

All camshafts must be locked in place before
installation of any timing chains.

Figure 6A1 – 147

5

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 – 148

6

Install the left-hand secondary timing chain (1)
aligning the chain in the following manner:

Figure 6A1 – 149

Engine Mechanical – V6

Page 6A1–132

Page 6A1–132

7

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

8

Ensure there are two bright links located on top of
each of the camshaft sprockets.

Figure 6A1 – 150

CAUTION

When aligning the left-hand secondary timing
chain to the camshaft sprockets, ensure the
circular timing marks on the sprocket are
used, NOT the triangular mark.

9

Align the bright plated timing chain link (1) with the
left-hand exhaust camshaft position sprocket
alignment circle mark (2).

Figure 6A1 – 151

Engine Mechanical – V6

Page 6A1–133

Page 6A1–133

10

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

Figure 6A1 – 152

11

Ensure the left-hand camshaft intermediate sprocket
is selected and orientated correctly.

CAUTION

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

Figure 6A1 – 153

12

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

Figure 6A1 – 154

Engine Mechanical – V6

Page 6A1–134

Page 6A1–134

13

Install the left-hand camshaft intermediate sprocket to
the cylinder block.

14

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 – 155

15

Verify the left-hand secondary timing chain timing
mark alignments (1 to 6)

Figure 6A1 – 156

16

Ensure the left-hand secondary timing chain guide is
selected and orientated correctly.

CAUTION

The left-hand secondary timing chain guide
is marked with the letters LH. Ensure the
correct shoe is used when installing to the
left-hand side in this procedure and that the
letters ‘LH” are facing the front of the vehicle
when installed.

Figure 6A1 – 157