Page 2569 of 6020
Engine Mechanical – V6 Page 6A1–90
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 2570 of 6020

Engine Mechanical – V6 Page 6A1–91
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 front 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 position 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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Page 2571 of 6020
Engine Mechanical – V6 Page 6A1–92
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 2572 of 6020
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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Page 2573 of 6020

Engine Mechanical – V6 Page 6A1–94
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
Figure 6A1 – 99
Legend
1 Intake Camshaft Sprocket Timing Mark – Left-hand
2 Secondary Timing Chain Bright 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 Driveshaft Sprocket Timing Mark – Left-hand 7 Camshaft Intermediate Driveshaft Sprocket – Left-hand
8 Primary Timing Chain Bright Plated Link
9 Camshaft Intermediate Driveshaft Sprocket Timing Mark – Left-hand
10 Camshaft Intermediate Drive shaft Sprocket – Right-hand
11 Crankshaft Sprocket
12 Crankshaft Sprocket Timing Mark
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Page 2574 of 6020
Engine Mechanical – V6 Page 6A1–95
Right-hand Secondary Timing Chain Installation
Figure 6A1 – 100
Legend
1 Intake Camshaft Sprocket Timing Mark – Left-hand
2 Secondary Timing Chain Bright 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 Drive Chain Sprocket Timing Mark – Left-hand
7 Primary Camshaft Intermediate Drive Chain Sprocket – Left- hand
8 Primary Timing Chain Bright Plated Link 9 Camshaft Intermediate Drive Chain Sprocket Timing Mark –
Left-hand
10 Camshaft Intermediate Drive Chain Sprocket – Right-hand
11 Crankshaft Sprocket
12 Crankshaft Sprocket Timing Mark
13 Secondary Timing chain Bright Plated Link – Right-hand
14 Camshaft Intermediate Drive Chain – Right-hand
15 Exhaust Camshaft Sprocket Timing Mark - Right-side
16 Inlet Camshaft Sprocket Timing Mark - Right-side
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Page 2575 of 6020
Engine Mechanical – V6 Page 6A1–96
Remove
Right-hand Secondary Timing Chain
CAUTION
After removing the upper intake manifold, and
spark plugs, plug any openings to prevent dirt
and other contaminants from entering.
1 Remove the engine front cover assembly, refer to 3.15 Front Cover Assembly.
2 Remove the spark plugs to aid crankshaft/engine rotation, refer to 6C1-3 Engine Management – V6 – Service Operations.
3 Install Tool No. EN46111 (1) onto the crankshaft (2).
Figure 6A1 – 101
4 Using Tool No. EN46111 (1), rotate the crankshaft in a clockwise direction until the crankshaft sprocket
timing mark (2) is aligned with the indexing mark (3)
on the oil pump housing.
Figure 6A1 – 102
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Page 2576 of 6020
Engine Mechanical – V6 Page 6A1–97
5 After aligning the crankshaft sprocket timing mark,
check that the camshaft flats (1) at the rear of the
right-hand cylinder head are parallel with the
camshaft cover rail (2).
6 If the camshaft flats are not as shown, rotate the crankshaft 360 °.
Figure 6A1 – 103
7 Install Tool No. EN 46105-1 (1) onto the rear of the right-hand cylinder head camshafts (2).
Figure 6A1 – 104
8 Install Tool No. EN 46105-2 (1) onto the rear of the left-hand cylinder head camshafts (2), and tool No
Figure 6A1 – 105
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