ISUZU KB P190 2007 Workshop Repair Manual

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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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 6A1–94

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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ISUZU KB P190 2007

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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ISUZU KB P190 2007

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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ISUZU KB P190 2007

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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Engine Mechanical – V6 Page 6A1–98

9 Remove the right-hand secondary timing chain
tensioner bolts (1) and remove the tensioner (2).


NOTE
Take care when removing the tensioner bolts.
The tensioner plunger is subjected to spring
tension and may spring apart during tensioner
removal.
Figure 6A1 – 106
10 Remove the tensioner gasket (1) from the tensioner (2) and discard the gasket.
11 Inspect the tensioner mounting surface on the right- hand cylinder head for burrs or any defects that would
affect the sealing of a new tensioner gasket.
Figure 6A1 – 107
12 Remove the right-hand secondary timing chain shoe bolt (1).
Figure 6A1 – 108

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Engine Mechanical – V6 Page 6A1–99

13 Remove the right-hand secondary timing chain shoe
(1).
Figure 6A1 – 109
14 Remove the two right-hand secondary timing chain guide bolts (1) and remove the guide (2).
Figure 6A1 – 110
15 Remove the right-hand secondary timing chain (1) from the camshaft position actuators (2) and the
camshaft intermediate driveshaft sprocket (3).
Figure 6A1 – 111

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ISUZU KB P190 2007

Engine Mechanical – V6 Page 6A1–100

Primary Timing Chain
1 Remove the right-hand secondary timing chain, refer to Right-hand Secondary Timing Chain in this Section.
2 Remove the two primary timing chain tensioner bolts (1), and remove the tensioner (2).


NOTE
Take care when removing the tensioner bolts.
The tensioner plunger is subjected to spring
tension and may spring apart during tensioner
removal.

Figure 6A1 – 112
3 Remove the gasket (1) from the tensioner (2) and discard the gasket.
4 Inspect the primary timing chain tensioner mounting surface on the engine block for burrs or any defects
that would affect the sealing of a new tensioner
gasket.

Figure 6A1 – 113
5 Remove the two primary timing chain upper guide bolts (1) and remove the guide (2).

Figure 6A1 – 114

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ISUZU KB P190 2007

Engine Mechanical – V6 Page 6A1–101

NOTE
Do not remove the primary timing chain lower
guide (1). The primary timing chain lower guide
is not serviced separately. If the primary timing
chain lower guide requires replacement, the oil
pump assembly (2) must be replaced.

Figure 6A1 – 115
6 Remove the primary timing chain (1). NOTE
For ease of removal, remove the chain from the
crankshaft sprocket, before attempting to
remove from the camshaft intermediate
driveshaft sprockets.

Figure 6A1 – 116
7 If required, remove the right-hand camshaft intermediate driveshaft sprocket bolt (1) and remove
the sprocket (2).
Figure 6A1 – 117

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