2007 ISUZU KB P190 engine oil

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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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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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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Engine Mechanical – V6 Page 6A1–128


27 Verify the primary and left-hand secondary timing chain timing mark alignments (1 to 12).

Figure 6A1 – 188
28 Remove Tool No. EN 46105 from the left-hand and right-hand cylinder head camshafts.
Right-hand Secondary Timing Chain Components
1 Install the primary timing chain components, refer to Primary Timing chain Components in this Section.
2 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 – 189

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Engine Mechanical – V6 Page 6A1–136

28 Verify all primary and secondary timing chain timing
mark alignments (1 to 18).
29 Remove Tool No. EN 46105 and EN 46105-2 from the left and right-hand cylinder head camshafts.
30 Reinstall the spark plugs. Refer to 6C1-3 Engine Management – V6 – Service Operations.
31 Reinstall the engine front cover assembly, refer to 3.15 Front Cover Assembly.
Figure 6A1 – 211


3.17 Oil Pump Assembly
Remove
NOTE
Do not remove the left-hand bank idler sprocket.
1 Remove the primary timing chain and crankshaft sprocket, refer to 3.16 Timing Chains, Tensioners, Shoes and Guides.
2 Remove the three bolts (1) attaching the oil pump (2).
3 Remove the oil pump assembly.
Figure 6A1 – 212

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Engine Mechanical – V6 Page 6A1–137

Disassemble
CAUTION
There are no serviceable components within
the oil pump. Disassemble the pump only to
diagnose an oil related concern. A
disassembled oil pump must not be reused: it
must be replaced.
1 Remove the two bolts (1) attaching the primary timing chain lower guide (2) and remove the guide.

CAUTION
The primary timing chain lower guide is not
serviced separately and is part of the oil
pump assembly. If it is removed from the
pump assembly, the guide and the pump
must be replaced.
Figure 6A1 – 213
2 Remove the seven bolts (2) attaching the oil pump cover to the oil pump housing (1) and remove the
cover from the housing.

Figure 6A1 – 214

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Engine Mechanical – V6 Page 6A1–138

3 Remove the inner gerotor ring (1).
4 Remove the outer gerotor ring (2).

Figure 6A1 – 215
5 Remove the clip (1), retaining the oil relief valve cap (2).
6 Remove the cap, spring (3) and plunger (4) from the oil pump housing.

Figure 6A1 – 216
Clean
1 Clean the oil pump components with non-corrosive solvent.

Safety glasses must be worn when using
compressed air.
2 Dry the oil pump components with compressed air.

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