Isuzu KB P190. Manual — part 648

Engine Mechanical – V6

Page 6A1–113

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 – 145

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 – 146

6

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

Figure 6A1 – 147

Engine Mechanical – V6

Page 6A1–114

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 actuator sprockets.

Figure 6A1 – 148

CAUTION

When aligning the left-hand secondary timing
chain to the camshaft actuator 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 actuator sprocket
alignment circle mark (2).

Figure 6A1– 153

Engine Mechanical – V6

Page 6A1–115

10

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

Figure 6A1 – 149

11

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

CAUTION

The left-hand camshaft intermediate
driveshaft 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 – 150

12

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

Figure 6A1 – 151

Engine Mechanical – V6

Page 6A1–116

13

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

14

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

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

Figure 6A1 – 152

15

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

Figure 6A1 – 153

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 – 154