2007 ISUZU KB P190 oil

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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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 6A1–96

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 6A1–101

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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ISUZU KB P190 2007

Engine Mechanical – V6 Page 6A1–107

Crankshaft Sprocket
1 Inspect the crankshaft sprocket for the following:
• sprocket damage (1),
• bore damage (2),
• keyway damage (3), and
• damage to the cushion material (4).
2 Replace a damaged sprocket as required.

Figure 6A1 – 130
Primary Timing Chain Upper Guide
1 Inspect the primary timing chain upper guide for the following:
• worn guide surface (1),
• cracked or broken guide surface (2), and
• cracked or damaged guide base (3).
2 Replace a damaged guide as required.
Figure 6A1 – 131
Primary Timing Chain Lower Guide
1 Inspect the primary timing chain lower guide for the following:
• worn guide surface (1),
• cracked or broken guide surface (2), and
• cracked or damaged guide base (3).
2 Replace the primary timing chain lower guide by replacing the oil pump assembly, refer to 3.17 Oil
Pump Assembly.

NOTE
The primary timing chain lower guide is not
serviced separately and is part of the oil pump
assembly.
Figure 6A1 – 132

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ISUZU KB P190 2007

Engine Mechanical – V6 Page 6A1–113

3 Install Tool No. EN 46105-1 (1) onto the rear of the
left-hand cylinder head camshafts (2), and Tool No.
EN 46105-2 onto the rear of the right-hand cylinder
head camshafts.
4 Ensure that Tool No. EN 46105 is fully seated onto the camshafts.


CAUTION
All camshafts must be locked in place before
installation of any timing chains.
Figure 6A1 – 145
5 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 – 146
6 Install the left-hand secondary timing chain (1) aligning the chain in the following manner:

Figure 6A1 – 147

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ISUZU KB P190 2007

Engine Mechanical – V6 Page 6A1–122

5 Ensure that the crankshaft sprocket timing mark (1) is
aligned with the indexing mark (2) on the oil pump
housing.

Figure 6A1 – 170
6 Install the primary timing chain (1).

Figure 6A1 – 171
7 W rap the primary timing chain around the large sprockets of each camshaft intermediate driveshaft
sprocket and the crankshaft sprocket aligning the
bright plated chain links as follows:

Figure 6A1 – 172

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ISUZU KB P190 2007

Engine Mechanical – V6 Page 6A1–124

11 Ensure all the timing marks (1, 2 and 3) are properly
aligned with the bright plated timing chain links (4, 5
and 6).

Figure 6A1 – 176
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 must be replaced, the oil
pump assembly (2) must be replaced.

Figure 6A1 – 177
12 Ensure the primary timing chain upper guide is selected and orientated correctly.

Figure 6A1 – 178

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