2007 ISUZU KB P190 ECO mode

Engine Mechanical – V6 Page 6A1–66
Page 6A1–66
3 Minor Service Operations
ATTENTION
The V6 engine is a combination of numerous components, containing machined, honed, polished and lapped
surfaces manufactured on the latest, high technology production equipment. Many of the components
contain tolerances measured in thousa ndths of a millimetre. Consequently, when any e ngine component is to
be serviced, care and cleanliness are extremely important.
Prior to re-assembly of the engine, all components mu st be cleaned and inspected in accordance with the
relevant clean and inspect procedur es throughout this Section, and repl aced or repaired where required.
In addition to cleaning and inspecting components, a liberal coating of engine oil should be applied to friction
surfaces during assembly to protect and lubr icate the surfaces on initial operation.
When performing any service operation, it should be understood that correct cleaning and protection of
machined surfaces and friction areas is part of the repair procedure. This is considered standard workshop
practice, even if not specifically stated. Torque va lues must be used as specified during reassembly to
ensure correct retention of all components.
Through out this section, fastener torque wrench sp ecifications may be accompanied with the following
identification marks:
■ Fasteners must be replaced after loosening.
Fasteners either have micro encapsulated sealant a pplied or incorporate a mechanical thread lock and
should only be re-used once. If in doubt, replacement is recommended.
If one of these identification marks is present alongs ide a fastener torque wrench specification, the
recommendation regarding that fastener must be adhered to.
3.1 Engine Oil
The procedure outlined below is typically the same for both rear wheel drive and all wheel drive vehicles.
Check
The following procedure is applicable to both rear wheel and all wheel drive vehicles
1 Run the engine to bring it to normal operating temperature.
2 Park the vehicle on a level surface. A vehicle that is not level will affect the accuracy of the level reading.
3 Stop the engine and wait 5 to 10 minutes to a llow the oil to drain back into the oil pan.
4 Remove the oil level indicator (1) and wipe clean.
5 Insert the indicator, ens uring it is fully seated.
6 Slowly remove the indicator to avoid smearing. Hold it horizontally or with lower end slightly down to avoid
oil running along indicator.
7 Observe the oil level where it passes over the centre
line of the indicator.
8 If the level is lower than the Add mark (2), add enough oil to the engine to reach the Upper mark (3).
Do not add too much oil as the reading should never
be above the Upper mark.
NOTE
When topping up the oil, allow approximately 5
to 10 minutes for the added oil to fully drain into
the oil pan.
Figure 6A1 – 23

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Engine Mechanical – V6 Page 6A1–67
Page 6A1–67
Replace
NOTE
• Quicker and more complete draining will
occur if the engine oil is at normal operating
temperature. However, care must be taken to
avoid scalding from the hot oil.
• It recommended the oil filter be changed at
each engine oil change, refer to 3.2 Oil Filter.
1 Remove the oil fill cap.
2 To ensure complete draining of the oil pan, raise the front and rear of the vehicle to maintain a level attitude. If not
using a hoist, support the vehicle with safety stands, refer to Section 0A General Information.
3 Clean any foreign material from around the oil drain pl ug and place a suitable, clean drain tray under the engine.

The oil may be hot. Avoid contact with the oil.
Ensure that eyes and skin are protected.
4 Remove the drain plug (1), taking care to avoid sca lding from the hot oil. Allow the oil to drain.
5 Clean and inspect the drain plug threads . If damaged, replace the drain plug.

Figure 6A1 – 24
6 Once the oil has completely drained, reinstall the dr ain plug and tighten to the correct torque specification.
Oil pan drain plug
torque specificat ion ............................................ 25.0 Nm
7 Replace the oil filter, refer to 3.2 Oil Filter.
8 Lower the vehicle to the ground and fill with the specified amount of SAE 5W30 lubricant.
Engine Oil Capacity:
With Oil Filter Change........................................6.5 litres
9 Install the oil fill cap.
10 Start the engine and check for leaks.

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Engine Mechanical – V6 Page 6A1–68
Page 6A1–68
Pressure Check
1 Run the engine to bring it to normal operating temperature.
2 Park the vehicle on a level surface. A vehicle not level will affect the accuracy of the level reading.
3 Stop the engine and wait 5 to 10 minutes to a llow the oil to drain back into the oil pan.
4 Check the oil level and top up with the recommended engine o il as required, refer to Check, in this Section.
5 Remove the engine oil pressure sensor (1), refer to Section 6C1-3 Engine Management – V6 – Service
Operations .
6 Install the oil pressure gauge adaptor, Tool No. J36648-A into the oil pressure sender hole in the oil
filter housing.
7 Install a suitable oil pressure gauge into the adaptor.
8 Start the engine.
9 Measure and record the pressure reading on the gauge at idle and 2000 r.p.m. Compare the results
with the specification.
Minimum engine oil pressure
@ idle ................................................................... 69 kPa
@ 2000 r.p.m. .................................................... 138 kPa
10 If the engine oil pressure is not to specification, refer to
2.19 Engine Oil Pressure Diagnosis .
11 After completing the engine oil pressure check, stop the engine and remove the oil pressure gauge.
Figure 6A1 – 25
12 Reinstall the oil pressure sensor, refer to Section 6C1-3 Engine Management – V6 – Service Operations.
13 Start the engine and check for leaks.

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Engine Mechanical – V6 Page 6A1–89
Page 6A1–89
5 Place a straight edge (1) across the lower intake
manifold sealing surface (2).
6 Using a feeler gauge (3), measure the clearance
between the manifold and the straight edge.
7 If the clearance between the lower intake manifold sealing surface and the straight edge exceeds the
specified maximum warpage, replace the manifold.


Lower manifold maximum
warpage ............................................................ 0.05 mm
Figure 6A1 – 55
Reassemble
Reassembly of the upper to lower intake manifold is the reverse of the disassembly procedure noting the following:
1 Ensure that both the manifo lds have been cleaned and inspected.
2 Ensure that the warpage of the mati ng surfaces is within tolerances.
3 New upper to lower intake m anifold gaskets must be used.
4 Do not tighten the intake manifold to lower intake manifold attaching bolt at this stage. The intake manifold
attaching bolts must be tightened at the specif ied sequence during the reinstallation procedure.
Reinstall
Reinstallation of the upper intake manifold and the upper and lower intake manifo ld assembly is the reverse of the
removal procedure, noting the following:
1 Install the EVAP hose to the clip atta ched to the lower intake manifold.
2 Only new gaskets are to be fitted betw een the upper and lower intake manifolds.
3 If undamaged, the lower intake manifold to cylinder head gasket may be re-used, however its replacement is
strongly recommended.
CAUTION
Tighten the intake manifold bolts in a circular
pattern starting at the centre bolt and moving
outward.
4 Ensure that all fasteners are tightened to the correct torque specification.
Upper intake manifold to lower intake
manifold attaching bolt torq ue specification .......23.0 Nm
Upper intake manifold to cylinder
head attaching bolt torque specification .............23.0 Nm
Lower intake manifold to cylinder
head attaching bolt torque specification .............23.0 Nm
Fuel injector wiring harness bracket
attaching bolt torque specification ........................9.0 Nm

Incorrect wiring connector installation may
cause component malfunction or component
damage.

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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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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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Engine Mechanical – V6 Page 6A1–112
Page 6A1–112
Right-hand Secondary Timing Chain Installation
Excluding MY06 Update

Figure 6A1 – 101
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 Primary Camshaft Intermediate Sprocket – Left-hand
8 Primary Timing Chain Bright Plated Link 9 Camshaft Intermediate Sprocket Timing Mark – Left-hand
10 Camshaft Intermediate Sprocket – Right-hand
11 Crankshaft Sprocket
12 Crankshaft Sprocket Timing Mark
13 Secondary Timing Chain Bright Plated Link – Right-hand
14 Secondary Timing Chain – Right-hand
15 Exhaust Camshaft Sprocket Timing Mark - Right-side
16 Inlet Camshaft Sprocket Timing Mark - Right-side

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Engine Mechanical – V6 Page 6A1–113
Page 6A1–113
MY06 Update

Figure 6A1 – 102
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
Intermediate Camshaft
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 Bri ght Plated Link - Right-hand
17 Camshaft Intermediate Sprocket Timing Mark – Right-hand
18 Window for Secondary Timing Chain – Right-hand
19 Secondary Timing Chain Bright Plated Link – Right-hand Intermediate Camshaft
20 Secondary Timing Chain – Righ-hand
21 Secondary Timing Chain Bright Plated Link – Right-hand Exhaust
22 Exhaust Camshaft Sprocket Timing Mark – Right-hand
23 Intake Camshaft Sprocket Timing Mark – Right-hand
24 Secondary Timing Chain Bright Plated Link – Right-hand Intake

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