Page 2881 of 6020

Engine Mechanical – V6 Page 6A1–104
Page 6A1–104
3.15 Front Cover Assembly
Remove
1 Drain the engine coolant, refer to Section 6B1 Engine Cooling.
2 Remove the water outlet pipe and coolant pump assembly, refer to Section 6B1 Engine Cooling:
3 Remove the camsha ft covers, refer to 3.12 Camshaft Cover .
4 Remove the crankshaft bal ancer 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 Section 6C1-3 Engine Management – V6 – Service Operations.
NOTE
Do not disconnect the A/C compressor pipes.
8 Remove the bolt (2), 22 places, attaching the front cover assembly (1).
CAUTION
Only use the prise points and a bolt in the
jackscrew hole to remove the engine front
cover.
9 Loosely install a 10 x 1.5 mm bolt in the jackscrew hole (1).
10 Using the prise points (2) located at the edge of the
front cover and the jackscrew, shear the RTV sealant.
Figure 6A1 – 83
Figure 6A1 – 84
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ISUZU KB P190 2007
Page 2882 of 6020
Engine Mechanical – V6 Page 6A1–105
Page 6A1–105
11 Remove the front cover assembly (1).
Figure 6A1 – 85
Disassemble
1 Remove the crankshaft front oil seal (1) from the engine front cover (2) using a flat bladed tool or seal
remover, Tool No. E-308. Discard the seal.
Figure 6A1 – 86
2 Remove the camshaft position actuator valve oil seals (1) from the engine front cover (2). Discard the
seals.
Figure 6A1 – 87
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ISUZU KB P190 2007
Page 2883 of 6020
Engine Mechanical – V6 Page 6A1–106
Page 6A1–106
3 Remove the coolant pump seal (1) from the engine
front cover (2). Discard the seal.
Figure 6A1 – 88
Clean
4 Remove any RTV sealant (1) from the engine front cover using a plastic or wood scraper.
CAUTION
• Insert a piece of cardboard between the
front of the oil pan and oil pump to
prevent any contaminants from falling
into the oil pan.
• Do not use a sharp or metal gasket
scraper to clean the sealing surfaces.
5 Clean out any debris from the bolt holes.
6 Clean the front cover with a suitable cleaning solvent.
7 Dry the front cover with compressed air.
Safety glasses must be worn when using
compressed air.
Figure 6A1 – 89
8 Use compressed air to remove any engine coolant from the engine cooling passages and from the top of the oil
pan oil deflector.
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Page 2884 of 6020

Engine Mechanical – V6 Page 6A1–107
Page 6A1–107
Inspect
1 Inspect both sides of the engine front cover for the
following conditions:
• damage to the camshaft position actuator valve
oil seal bores (1),
• damage to the bolt holes (2),
• damage and/or corrosion to the engine coolant
passage (3),
• dents or damage to the exterior (4),
• damage to the crankshaft front oil seal bore (5),
• gouges or damage to the coolant pump sealing
surfaces (6), and
• damage to the coolant pump bolt hole
threads (7).
2 Repair or replace the fr ont cover as required.
Figure 6A1 – 90
Reassemble
1 Install a new crankshaft front oil seal (1) into the front cover (2) using crankshaft front seal installer, Tool
No. J-29184 (3) and a suitable hammer.
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 – 91
2 Install a new camshaft positi on actuator valve oil seal
(1) into the front cover (2) using Tool No. EN-46103
(3) and a suitable hammer.
Figure 6A1 – 92
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ISUZU KB P190 2007
Page 2885 of 6020
Engine Mechanical – V6 Page 6A1–108
Page 6A1–108
Reinstall
Reinstallation of the front cover is the reverse of the removal procedure, noting the following:
1 Install the guide pins, Tool No. EN-46109 (1) into the engine block, two places.
Figure 6A1 – 93
2 Install a new engine front cover to cylinder block seal (1).
Figure 6A1 – 94
3 Apply a 3 mm bead of RTV sealant (1) to the front cover.
Figure 6A1 – 95
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Page 2886 of 6020
Engine Mechanical – V6 Page 6A1–109
Page 6A1–109
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 specificat ion .......................... 20.0 – 26.0 Nm
8 Fill the cooling system, refer to Section 6B1 Engine
Cooling – V6 .
9 Change the engine oil, refer to 3.1 Engine Oil.
Figure 6A1 – 98
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Page 2887 of 6020

Engine Mechanical – V6 Page 6A1–110
Page 6A1–110
3.16 Timing Chains, Tensioners, Shoes and
Guides
CAUTION
Setting the camshaft timing is required
whenever the camshaft drive system has
been disturbed and the relationship between
any chain and sprocket has been lost. If
required, follow the left-hand secondary
timing chain reinstallation procedure to reset
the camshaft timing.
Primary and Left-hand Secondary Timing Chain Installation
Excluding MY06 Update
Figure 6A1 – 99
Legend
1 Intake Camshaft Sprocket Timing Mark – Left-hand
2 Secondary Timing Chain Bri ght Plated Link – Left-hand
3 Exhaust Camshaft Sprocket Timing Mark – Left-hand
4 Secondary Timing Chain – Left-hand
5 Primary Timing Chain
6 Camshaft Intermediate Sprocket Timing Mark – Left-hand 7 Camshaft Intermediate Sprocket – Left-hand
8 Primary Timing Chain Bright Plated Link
9 Camshaft Intermediate Sprocket Timing Mark – Right-hand
10 Camshaft Intermediate Sprocket – Right-hand
11 Crankshaft Sprocket
12 Crankshaft Sprocket Timing Mark
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Page 2888 of 6020
Engine Mechanical – V6 Page 6A1–111
Page 6A1–111
MY06 Update
Figure 6A1 – 100
Legend
1 Intake Camshaft Sprocket Timing Mark – Left-hand
2 Secondary Timing Chain Bri ght Plated Link – Left-hand
Intake
3 Exhaust Camshaft Sprocket Timing Mark – Left-hand
4 Secondary Timing Chain Bri ght Plated Link – Left-hand
Exhaust
5 Secondary Timing Chain – Left-hand
6 Primary Timing Chain Bri ght Plated Link – Left-hand
7 Camshaft Intermediate Sprocket Timing Mark – Left-hand
8 Camshaft Intermediate Sprocket – Left-hand 9 Secondary Timing Chain Bri
ght Plated Link – Left-hand
10 Camshaft Intermediate Sprocket Timing Mark – Left-hand
11 Primary Timing Chain
12 Primary Timing Chain Bright Plated Link – Crankshaft
Sprocket
13 Crankshaft Sprocket Timing Mark
14 Crankshaft Sprocket
15 Camshaft Intermediate Sprocket – Right-hand
16 Primary Timing Chain Bright Plated Link
17 Camshaft Intermediate Sprocket Timing Mark – Right-hand
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ISUZU KB P190 2007