2007 ISUZU KB P190 sensor

Engine Mechanical – V6 Page 6A1–76

2 Remove the oxygen sensor harness connector (1)
from the retaining bracket.
3 Disconnect the oxygen sensor wiring harness connector from the engine wiring harness connector
(2).
4 Unclip the oxygen sensor wiring harness retaining clip and move aside.
5 For the left-hand side: Remove the oil level indicator tube.
6 Raise the front of the vehicle and place on stands, refer to 0A General Information.
7 W orking from under the vehicle, remove the two exhaust manifold to exhaust pipe flange nuts, refer to
6F Exhaust System - V6 - V6.
Figure 6A1 – 56
8 Remove the three bolts attaching the exhaust manifold outer heat shield (1) to the exhaust manifold
(2).

Figure 6A1 – 57
9 Progressively loosen the seven exhaust manifold attaching bolts (2), working from the outside to the
centre and then remove the bolts.
10 Manoeuvre the exhaust manifold (3), away from the cylinder head.
11 Remove and discard the exhaust manifold to cylinder head gasket.



Figure 6A1 – 58

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ISUZU KB P190 2007

Engine Mechanical – V6 Page 6A1–79

3.12 Camshaft Cover
Remove
1 Remove the intake manifold assembly, refer to 3.10 Intake Manifold Assembly – Complete.
2 For the left-hand side, remove the evaporative (EVAP) emission canister purge solenoid, refer to 6C1-3 Engine Management – V6 – Service Operations.
3 Remove the two bolts (1) attaching the engine wiring harness former to the rear of the cylinder heads.
4 Unclip the transmission vent tube (2) from the engine wiring harness.
Figure 6A1 – 61
5 Disconnect the oxygen sensor wiring harness connector (1) from the engine wiring harness (2), left-
hand shown, right-hand similar.
Figure 6A1 – 62

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ISUZU KB P190 2007

Engine Mechanical – V6 Page 6A1–80

6 Remove the bolt (1) attaching the ground connector
(2) to the cylinder head.
7 Fro the left-hand side, disconnect the engine coolant temperature (ECT) sensor wiring connector (3).
8 Unclip the engine wiring harness retaining lugs from the side of the camshaft cover.
Figure 6A1 – 63
9 For the right-hand side, remove the engine wiring harness retaining clip (1) from the engine control
module (ECM) bracket (2).
Figure 6A1 – 64
10 Disconnect the camshaft position (CMP) sensor wiring connector (1).
11 Unclip the engine wiring harness retaining lug (3) from the front of the camshaft cover.
12 Remove the ignition coil assemblies; refer to 6C1-3 Engine Management – V6 – Service Operations.
13 Move the engine wiring harness clear of the camshaft cover.


Figure 6A1 – 65

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ISUZU KB P190 2007

Engine Mechanical – V6 Page 6A1–87

3.14 Crankshaft Front Seal
Replace
1 Remove the crankshaft balancer assembly, refer to 3.13 Crankshaft Balancer Assembly.
2 Using a flat bladed tool (2) or seal remover, Tool No. E-308, carefully remove the crankshaft front seal (1)
from the front cover.
Figure 6A1 – 81
3 Using crankshaft front seal installer, Tool No. J-29184 (2) and a suitable hammer, install a new crankshaft
front seal (1) until fully seated against the front cover
housing.
4 Install the crankshaft balancer assembly, refer to 3.13 Crankshaft Balancer Assembly.
CAUTION
Do not lubricate the crankshaft front oil seal
or crankshaft balancer sealing surfaces. The
crankshaft balancer is installed into a dry
seal.
Figure 6A1 – 82
3.15 Front Cover Assembly
Remove
1 Drain the engine coolant, refer to 6B1_Engine Cooling.
2 Remove the water outlet pipe and coolant pump assembly, refer to 6B1_ Engine Cooling:
3 Remove the camshaft covers, refer to 3.12 Camshaft Cover.
4 Remove the crankshaft balancer assembly, refer to 3.13 Crankshaft Balancer Assembly.
5 Disconnect the purge vent hose from the water outlet pipe.
NOTE
Do not disconnect the power steering pipes or
drain the power steering fluid.
6 Remove the power steering pump reservoir mounting bracket, refer to 3.8 Power Steering Pump Bracket.
7 Remove the camshaft position sensor, refer to 6C1-3 Engine Management – V6 – Service Operations.

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ISUZU KB P190 2007

Engine Mechanical – V6 Page 6A1–141

Reassemble
CAUTION
As there are no serviceable components
within the oil pump, a disassembled oil pump
must be replaced.
Reinstall
1 Align the oil pump gerotor with the crankshaft flats and fit the oil pump assembly to the engine block.
2 Align the pump body (2) with the mounting holes in the cylinder block.
3 Install the oil pump bolt (1), three places, and tighten to the correct torque specification.
4 Install the primary timing chain, refer to 3.16 Timing Chains, Tensioners, Shoes and Guides.


Oil pump attaching bolt torque
specification ............................................20.0 – 26.0 Nm

Figure 6A1 – 223
3.18 Camshaft Sprocket
CAUTION
Setting the camshaft timing is required
whenever the camshaft drive system is
disturbed to ensure the relationship between
any chain and sprocket is not lost. Even when
only one sprocket is involved, multiple
crankshaft rotations will not produce
conditions where correct timing can be
confirmed.
If required, follow the Left-hand Secondary
Camshaft Chain Components reinstallation
procedure to reset the camshaft timing.
Remove
Right-hand Side
1 Remove the right-hand camshaft cover, refer to 3.12 Camshaft Cover.
2 Remove the camshaft position sensors, refer to 6C1-3 Engine Management – Service Operations.
3 Remove the camshaft position actuator solenoids, refer to 6C1-3 Engine Management – V6 – Service Operations.
4 Remove the crankshaft balancer assembly, refer to 3.13 Crankshaft Balancer Assembly.

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ISUZU KB P190 2007

Engine Mechanical – V6 Page 6A1–144

Left-hand Side
1 Remove the left-hand camshaft cover, refer to 3.12 Camshaft Cover.
2 Remove the camshaft position sensors, refer to 6C1-3 Engine Management – V6 – Service Operations.
3 Remove the camshaft position actuator solenoids, refer to 6C1-3 Engine Management – V6 – Service Operations.
4 Remove the crankshaft balancer assembly, refer to 3.13 Crankshaft Balancer Assembly.
5 Install the crankshaft rotation socket Tool No. EN-46111 onto the crankshaft.
6 Rotate the crankshaft until the camshafts are in a neutral low tension position. The camshaft flats will be
parallel with the camshaft cover rail (1).

Figure 6A1 – 230
7 Install Tool No. EN-46105 – 1 (1) onto the rear of the left-hand cylinder head camshafts (2).

Figure 6A1 – 231

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ISUZU KB P190 2007

Engine Mechanical – V6 Page 6A1–162

9 Remove and discard the cylinder head gasket (1).

Figure 6A1 – 276
Left-hand Side (Bank 2) Cylinder Head
1 Remove the intake manifold assembly, refer to 3.10 Intake Manifold Assembly – Complete.
2 Remove the exhaust manifold, refer to 3.11 Exhaust Manifold Assembly.
3 Remove the power steering reservoir and pump mounting brackets, refer to 3.8 Power Steering Pump Bracket.
NOTE
Do not disconnect the power steering pipes
and/or hoses.
4 Remove the oil filter adapter upper bolt. NOTE
Do not remove the oil filter adapter.
5 Remove the engine coolant temperature (ECT) sensor, refer to 6C1-3 Engine Management – V6 – Service Operations.
6 Remove engine harness ground terminal attaching bolt from cylinder head, refer to 8A Electrical Body & Chassis.
7 Remove the left-hand bank secondary timing chain, refer to 3.16 Timing Chains, Tensioners, Shoes and Guides.
8 Remove the camshaft position actuators, refer to 3.18 Camshaft Sprocket.
9 Remove the front M8 (1) cylinder head attaching bolt, two places.
10 Remove the cylinder head attaching bolt (2), eight places.
11 Remove the cylinder head (3).

Figure 6A1 – 277

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ISUZU KB P190 2007

Engine Mechanical – V6 Page 6A1–185

Remove
1 Remove the skid plate.
2 Drain the radiator coolant, refer to 6B1 Engine Cooling – V6.
3 Disconnect the battery negative and positive terminal, refer to 8A Electrical Body & Chassis.
4 Remove the battery from the vehicle.
5 Depressurise the fuel system pressure, refer to 6C Fuel System – V6.
6 Make alignment marks on the bonnet and hinges in order to return the bonnet to the exact original position.
7 Remove the bonnet, refer to 2B Sheet Metal.
8 Remove the rubber hose (2) and air duct (1).

Figure 6A1 – 317

9 Disconnect the barometric sensor connector (1).
Figure 6A1 – 318

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ISUZU KB P190 2007