Isuzu KB P190. Manual — part 728

Engine Mechanical – V6

Page 6A1–135

Page 6A1–135

17

Install the left-hand secondary timing chain guide (1).

18

Install the secondary timing chain guide bolts (2) and
tighten to the correct torque specification.

Secondary timing chain guide
attaching bolt torque specification. . ...20.0 – 26.0 Nm

Figure 6A1 – 158

19

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

CAUTION

The left-hand secondary timing chain shoe
is marked with the letters LH on the back
face of the timing chain shoe. Ensure the
correct shoe is used when installing to the
left-hand side.

Figure 6A1 – 159

20

Install the left-hand secondary timing chain shoe (1).

Figure 6A1 – 160

Engine Mechanical – V6

Page 6A1–136

Page 6A1–136

21

Install the left-hand secondary timing chain shoe
bolt (1) and tighten to the correct torque specification.

N O T E

Ensure secondary timing chain shoe is clear of
the left-hand secondary timing chain tensioner
mounting pad, before tightening the attaching
bolt.

Secondary timing chain shoe attaching
bolt torque specification . . . . . . ..20.0 – 26.0 Nm

Figure 6A1 – 161

22

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

Figure 6A1 – 162

23

Reset the left-hand secondary timing chain tensioner.

N O T E

To reset the tensioner, use a suitably sized flat
blade screwdriver (1) or Tool No. J 45027 (4) to
wind the plunger in a clockwise direction, into
the tensioner shaft (2).

Figure 6A1 – 163

Engine Mechanical – V6

Page 6A1–137

Page 6A1–137

24

Install the tensioner shaft (1) into the left-hand
secondary timing chain tensioner body (2).

Figure 6A1 – 164

25

Compress the tensioner shaft into the body and lock
the left-hand secondary timing chain tensioner by
inserting Tool No. EN 46112 into the access hole in
the side of the tensioner body.

26

Slowly release pressure on the left-hand secondary
timing chain tensioner. The tensioner should remain
compressed.

CAUTION

If Tool No. EN 46112 (1) is not removed from
the tensioner body (2), the tensioner
shaft (3) will remain in the locked position
and no tension will be placed on the timing
chain, this will cause damage to the engine.

Figure 6A1 – 165

27

Install a new left-hand secondary timing chain
tensioner gasket (1) to the tensioner (2).

28

Install the left-hand secondary timing chain tensioner
bolts through tensioner and gasket.

29

Ensure the left-hand secondary timing chain tensioner
mounting surface on the left-hand cylinder head does
not have any burrs or defects that would affect the
sealing of the new gasket.

Figure 6A1 – 166

Engine Mechanical – V6

Page 6A1–138

Page 6A1–138

30

Place the left-hand secondary timing chain tensioner
(2) into position and loosely install the bolts (1) to the
cylinder head.

Figure 6A1 – 167

31

Verify the proper placement of the left-hand
secondary timing chain tensioner gasket tab (1).

32

Tighten the left-hand secondary timing chain
tensioner bolts (2) to the correct torque specification.

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

Figure 6A1 – 168

33

Release the left-hand secondary timing chain
tensioner (1) by pulling out Tools No. EN 46112 (2)
and unlocking the tensioner shaft.

Figure 6A1 – 169