2007 ISUZU KB P190 Timing

Engine Mechanical – V6 Page 6A1–200
Page 6A1–200
2 Inspect the back of each sprocket for the following:
• Sprocket damage (1),
• Camshaft locating pin damage (2) and,
• Camshaft seating/sealing inner hub flange
damage (3),


NOTE
These checks apply to both the inlet and
exhaust camshaft sprockets.

Figure 6A1 – 327
Reinstall
Reinstallation of the camshaft sprocke ts is the reverse of the removal procedure, noting the following:
1 Align the sprockets and timing chain with the marks made during removal.
2 Tighten the camshaft sprocket bolts to the correct torque specification.
Camshaft sprocket attaching
bolt torque specificat ion .......................... 49.0 – 67.0 Nm
3 Remove the timing chain retention tools.

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ISUZU KB P190 2007

Engine Mechanical – V6 Page 6A1–208
Page 6A1–208
2 Apply a liberal amount of engine oil to the
camshaft (1) journals and the right-hand cylinder
head camshaft carriers (2).


Figure 6A1 – 345
3 Position the camshafts (1) on the cylinder head and assemble the camshaft spro ckets to the camshafts.



NOTE
Install the camshaft sprocket bolts but do not
tighten at this stage.


Figure 6A1 – 346
4 Ensure the camshaft lobes are in the neutral position with the flats on the back of the camshafts up and
parallel (1) with the right-hand cylinder head camshaft
cover rail.
5 Ensure the marks on the right-hand exhaust camshaft position actuator and timing chain, made prior to the
disassemble operation are aligned.
6 Ensure the marks on the right-hand intake camshaft position actuator and timing chain, made prior to the
disassemble operation are aligned.


Figure 6A1 – 347

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ISUZU KB P190 2007

Engine Mechanical – V6 Page 6A1–211
Page 6A1–211
4 Ensure the camshaft lobes are in the neutral position
with the flats on the back of the camshafts up and
parallel (1) with the left-hand cylinder head camshaft
cover rail.
5 Ensure the marks on the left-hand exhaust camshaft position actuator and timing chain, made prior to the
disassemble operation are aligned.
6 Ensure the marks on the left-hand intake camshaft position actuator and timing chain, made prior to the
disassemble operation are aligned.


Figure 6A1 – 354
7 Observe the markings on the left-hand cylinder head camshaft bearing caps. Each bearing cap is
marked (1) to identify its location. The markings have
the following meanings:
• The raised feature must always be oriented
toward the centre of the cylinder head.
• The I indicates the intake camshaft.
• The E indicates the exhaust camshaft.
• The number 2, 4, 6 indicates the cylinder
position from the fr ont of the engine.
8 Apply a liberal amount of engine oil to the camshaft bearing caps.


Figure 6A1 – 355
9 Install the camshaft bearing thrust cap (1) in the first journal of the left-hand cylinder head.
10 Install the remaining bearing caps (2) with their orientation mark toward t he centre of the cylinder
head.
11 Hand start all the camshaft bearing cap bolts (3).


Figure 6A1 – 356

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ISUZU KB P190 2007

Engine Mechanical – V6 Page 6A1–217
Page 6A1–217
3.23 Cylinder Head Assembly
Remove
Right-hand Side (Bank 1) Cylinder Head
1 Remove the heater hoses and heater pipe assembly, refer to Section 6B1 Engine Cooling – V6.
2 Remove the intake mani fold assembly, refer to 3.10 Intake Manifold Assembly – Complete .
3 Remove the exhaust manifold, refer to 3.11 Exhaust Manifold Assembly.
4 Remove engine harness ground terminal attaching bolts from the cylinder head, refer to
Section 8A Electrical Body and Chassis .
5 Remove the right-hand side secondary timing chain, refer to 3.16 Timing Chains, Tensioners, Shoes and Guides.
6 Remove the camshaft sprockets, refer to 3.18 Camshaft Sprocket .
7 Remove the cylinder head attaching bolt (1), eight places.
8 Remove the cylinder head.

NOTE
There is no bolt fitted to the hole in the rear of
the right-hand-hand cylinder head.

Figure 6A1 – 365
9 Remove and discard the cylinder head gasket (1).


Figure 6A1 – 366

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ISUZU KB P190 2007

Engine Mechanical – V6 Page 6A1–218
Page 6A1–218
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 reservoi r 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 temper ature (ECT) sensor, refer to Section 6C1-3 Engine Management – V6 – Service
Operations .
6 Remove engine harness ground terminal attach ing bolt from cylinder head, refer to Section 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 – 367
12 Remove and discard the cylinder head gasket (1).


Figure 6A1 – 368

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ISUZU KB P190 2007

Engine Mechanical – V6 Page 6A1–233
Page 6A1–233
Reinstall
Right-hand Side (Bank 1) Cylinder Head
The reinstallation procedure for the right-hand side cylinder head assembly is the reverse of the removal procedure,
noting the following:
1 Ensure all fasteners are tightened to the correct torque specification.
2 Using crankshaft rotation Tool No. EN-46111 (1), align the crankshaft sprocket timing mark (2) with the
indexing mark (3) on the oil pump housing.


Figure 6A1 – 396
3 Ensure the deck face is clean and the cylinder head locating pins are securely mounted in the cylinder
block deck face.
4 Install a new right-hand cylinder head gasket (1) using the deck face locating pins for retention.

Figure 6A1 – 397
5 Align the cylinder head with the locating pins.
6 Place the cylinder head in position on the deck face.
NOTE
Do not allow oil on the cylinder head bolt
bosses.
CAUTION
Do not reuse the old M11 cylinder head bolts
(1 to 8 inclusive).
7 Install new M11 cylinder head bolts (1) eight places and tighten in the sequence shown and to the correct
torque specification.


Figure 6A1 – 398

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ISUZU KB P190 2007

Engine Mechanical – V6 Page 6A1–234
Page 6A1–234
„ Cylinder head M11 attaching bolt
torque specification:
Stage 1:............. 40.0 – 50.0 Nm
Stage 2:.............................. 120°


Figure 6A1 – 399
Left-hand Side (Bank 2) Cylinder Head
The reinstallation procedure for the left-hand side cylinder head a ssembly is the reverse of the removal procedure, noting
the following:
1 Ensure all fasteners are tightened to the correct torque specification.
2 Using crankshaft rotation Tool No. EN-46111 (1), align the crankshaft sprocket timing mark (2) with the
indexing mark (3) on the oil pump housing.

Figure 6A1 – 400
3 Ensure the deck face is clean and the cylinder head locating pins are securely mounted in the cylinder
block deck face.
4 Install a new cylinder head gasket (1) using the deck face locating pins for retention.

Figure 6A1 – 401

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ISUZU KB P190 2007

Engine Mechanical – V6 Page 6A1–253
Page 6A1–253
k Timing chains, tensioners, shoes, guides & sprockets, refer to 3.16 Timing Chains, Tensioners, Shoes and
Guides .
l Cylinder head assemblies, refer to 3.22 Cylinder Head Assembly.
m Oil pan assembly, refer to 4.2 Oil Pan and Oil Pump Suction Pipe Assembly .
n Piston and connecting rod assemblies, refer to 4.5 Pistons, Pins, Rings, Connecting Rods and Big-end
Bearings .
o Crankshaft assembly, refer to 4.6 Crankshaft and Main Bearings.
p Piston oil nozzles, refer 4.5 Pistons, Pins, Rings, Connecting Rods and Big-end Bearings .
Reassemble
Reassembly of the engine assembly is the reverse of the disassembly procedure.
Reinstall
Reinstallation of the engine assembly is the revers e to the removal procedure, noting the following:
NOTE
Refer to 6 Torque Wrench Specifications for the
correct torque specifications.
1 Tighten the fasteners to the co rrect torque specification.
Engine ground connector bolt
torque specificat ion ............................................ 10.0 Nm
Power steering high pressure line
attaching bolt torque specification ............. 8.0 – 12.0 Nm
Power steering high pressure line
flare nut torque specif ication ................... 25. 0 – 35.0 Nm
Engine mount to frame attaching bolt
torque specification ................................. 44. 0 – 60.0 Nm
Knock Sensor Attaching Nut
torque specification ............................................ 23.0 Nm
2 Use only the specified engine lubricant type and quantity. It is recommended that a fluorescent oil dye, such as that
contained in J 28481-B, be added to assist in any future oil leak diagnosis.
3 Fill the cooling system with the corre ct quantity and grade of coolant, refer to Section 6B1 Engine Cooling – V6.
4 Check transmission fluid level, replenishing as required, using the specified lubricant for the transmission fitted,
refer to Section 7C1 Automatic – 4L60E – General Information .
5 Disable the ignition system, refer to Section 6C1-3 Engine Management – V6 – Service Operations.
6 Crank the engine several times. Listen for any unusual noises or evidence that parts are binding.
7 Enable the ignition system. Start t he engine and listen for any unusual noises.
8 Check the vehicle oil pressure gauge or warning indica tor and confirm the engine has acceptable oil pressure. If
required, install an oil pressure gauge and m easure the engine oil pressure, refer to 2.19 Engine Oil Pressure
Diagnosis .
9 Run the engine at about 1,000 r. p.m. until the engine has reached normal operating temperature.
10 Listen for any unusual noises.
11 Check for oil, fuel, coolant and exhaust leaks wh ile the engine is running, correcting as required.
12 Perform a final inspection for correct engine oil and coolant levels.


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ISUZU KB P190 2007