torque ISUZU KB P190 2007 Workshop Repair Manual

Engine Mechanical – V6 Page 6A1–68

CAUTION
Tighten the intake manifold bolts in a circular
pattern starting at the centre bolt and moving
outward.
2 Ensure that all fasteners are tightened to the correct torque specification. Upper intake manifold to lower
intake manifold attaching bolt
torque specification ............................................23.0 Nm
Upper intake manifold to
cylinder head attaching bolt
torque specification ............................................23.0 Nm

Incorrect wiring connector installation may
cause component malfunction or component
damage.
3 Ensure all wiring connectors are fully engaged and if applicable, locked in place.
4 Ensure all wiring harnesses are correctly routed and attached securely in their retaining clips.
5 Ensure that all hoses and pipes are routed correctly and that any retaining clips are correctly installed.
6 Start and run the engine to check for correct operation.
3.10 Intake Manifold Assembly – Complete
The intake manifold comprises of an upper and lower section. Some service procedures only require the removal of the
upper intake manifold (e.g. fuel injector/spark plug servicing), while other service procedures require the removal of both
the upper and lower manifold as a complete assembly (e.g. cylinder head/s). If only the upper intake manifold needs to
be removed, refer to 3.9 Upper Intake Manifold.
Remove

Disconnection of the battery affects certain
vehicle electronic systems. Refer to 1.1
WARNING, CAUTION and NOTES before
disconnecting the battery.
1 Depressurise the fuel system.
2 Disconnect the battery negative terminal.

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ISUZU KB P190 2007

Engine Mechanical – V6 Page 6A1–75

CAUTION
Tighten the intake manifold bolts in a circular
pattern starting at the centre bolt and moving
outward.
4 Ensure that all fasteners are tightened to the correct torque specification. Upper intake manifold to lower intake
manifold attaching bolt torque specification .......23.0 Nm
Upper intake manifold to cylinder
head attaching bolt torque specification .............23.0 Nm
Lower intake manifold to cylinder
head attaching bolt torque specification .............23.0 Nm
Fuel injector wiring harness bracket
attaching bolt torque specification ........................9.0 Nm

Incorrect wiring connector installation may
cause component malfunction or component
damage.
5 Ensure all wiring connectors are fully engaged and if applicable, locked in place.
6 Ensure all wiring harnesses are correctly routed and attached securely in their retaining clips.
7 Ensure that all hoses and pipes are routed correctly and that any retaining clips are correctly installed.
8 After installation pull on any quick connect fittings to check that each is correctly installed.
9 Start and run the engine to check for correct operation.
3.11 Exhaust Manifold Assembly
Remove

Allow the engine to cool before commencing.

Disconnection of the battery affects certain
vehicle electronic systems, refer to 1.1
WARNING, CAUTION and NOTES before
disconnecting the battery.
1 Disconnect the battery negative terminal.

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ISUZU KB P190 2007

Engine Mechanical – V6 Page 6A1–78

2 Position a new exhaust manifold gasket onto the exhaust manifold.
3 Apply a 5 mm bead of Loctite 272 thread sealant (or equivalent) to the threads of the exhaust manifold attaching bolts.
4 Install the bolts into the exhaust manifold. This will prevent the gasket from falling off the manifold.
5 Manoeuvre the exhaust manifold into position and install the exhaust manifold attaching bolts.
6 From underneath the vehicle install the exhaust manifold to exhaust pipe flange nuts.
7 Tighten the exhaust manifold attaching bolts to the correct torque specification.
NOTE
When tightening the exhaust manifold to cylinder
head attaching bolts, begin with the centre bolts,
then alternate from side to side to the outer bolts.
Exhaust manifold to cylinder head
attaching bolt torque specification ...........17.0 – 23.0 Nm
8 Apply an anti seize compound such as Caltex Kopr-Kote (or equivalent) to the cleaned heat shield bolt threads. Install the heat shield attaching bolts and tighten to the correct torque specification.
Exhaust manifold heat shield attaching
bolt torque specification ............................8.0 – 12.0 Nm
9 For the right-hand side, install the battery harness ground cable attaching nut through the ground terminal and lower coolant tube mounting lug, and tighten to the correct torque specification.
Battery harness ground terminal
attaching nut torque specification.......................13.0 Nm

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ISUZU KB P190 2007

Engine Mechanical – V6 Page 6A1–83

5 Place the camshaft cover (1) into position onto the
cylinder head (2).
Figure 6A1 – 71
6 Loosely install the camshaft cover bolt (1), 13 places.
Figure 6A1 – 72
7 Tighten the camshaft cover bolts to the correct torque specification, in the sequence shown.





Camshaft cover attaching bolt
torque specification ...................................8.0 – 12.0 Nm

Figure 6A1 – 73

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ISUZU KB P190 2007

Engine Mechanical – V6 Page 6A1–84

8 Remove Tool No. EN-46101 (1).
9 Tighten all remaining fasteners to the correct torque specification.




Engine ground connector bolt
torque specification ............................................10.0 Nm
Engine wiring harness former attaching
bolt torque specification ..........................12.0 – 16.0 Nm

Figure 6A1 – 74
3.13 Crankshaft Balancer Assembly
Remove
1 Remove the accessory drive belt, refer to 3.5 Accessory Drive Belt.
2 Remove the starter motor, refer to 6D1-2_ Starting System.
3 Install Tool No. EN-46106 (1) into the starter motor opening to stop the camshaft from rotating.
Figure 6A1 – 75

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ISUZU KB P190 2007

Engine Mechanical – V6 Page 6A1–86

2 Partially install the crankshaft balancer assembly onto
the crankshaft.
Figure 6A1 – 78
3 Using crankshaft balancer installer, Tool No. J-41998-B (1), fully install the crankshaft balancer
assembly into the crankshaft.

CAUTION
To prevent damage to the crankshaft
threads, fully install crankshaft balancer
installer, Tool No. J-41998-B (1) into the
crankshaft before pressing the pulley and
balancer assembly.
Figure 6A1 – 79
4 Apply Loctite 272 or equivalent to the thread of a new crankshaft balancer assembly retaining bolt (1).
5 Install the crankshaft balancer assembly retaining bolt and tighten to the correct torque specification.



„ Crankshaft balancer retaining
bolt torque specification:
Stage 1 ............90.0 – 110.0 Nm
Stage 2 ............................... 150°
Figure 6A1 – 80

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ISUZU KB P190 2007

Engine Mechanical – V6 Page 6A1–93

4 Place the front cover onto the special tools and slide
into position.
5 Remove the special tools from the cylinder block.
Figure 6A1 – 96
6 Hand start the front cover bolts (1).
Figure 6A1 – 97
7 Tighten the engine front cover bolts to the correct torque specification, in the sequence shown.


Engine front cover assembly attaching
bolt torque specification ..........................20.0 – 26.0 Nm


8 Fill the cooling system, refer to 6B1 Engine Cooling – V6.
9 Change the engine oil, refer to 3.1 Engine Oil.



Figure 6A1 – 98

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ISUZU KB P190 2007

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

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ISUZU KB P190 2007

Engine Mechanical – V6 Page 6A1–117

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 – 155
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 – 156
20 Install the left-hand secondary timing chain shoe (1).
Figure 6A1 – 157

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ISUZU KB P190 2007

Engine Mechanical – V6 Page 6A1–118

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


NOTE
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 – 158
22 Ensure the left-hand secondary timing chain tensioner is selected and orientated correctly.

Figure 6A1 – 159
23 Reset the left-hand secondary timing chain tensioner.

NOTE
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 – 160

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