2007 ISUZU KB P190 oil

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

BACK TO CHAPTER INDEX
TO MODEL INDEX
ISUZU KB P190 2007

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.

BACK TO CHAPTER INDEX
TO MODEL INDEX
ISUZU KB P190 2007

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.

BACK TO CHAPTER INDEX
TO MODEL INDEX
ISUZU KB P190 2007

Engine Mechanical – V6 Page 6A1–69
Page 6A1–69
3.2 Oil Filter Cartridge
Replace
NOTE
• The oil filter cartri dge should be replaced at
the correct time or distance intervals, refer to
Section 0B Lubrication and Service .
• The oil filter cartridge should also be replaced
whenever the engine oil is suspected to have
been contaminated by foreign material.
1 Remove and discard the oil filter cartridge (1).
2 Install the new o il filter cartridge.

Figure 6A1 – 26

BACK TO CHAPTER INDEX
TO MODEL INDEX
ISUZU KB P190 2007

Engine Mechanical – V6 Page 6A1–70
Page 6A1–70
3.3 Oil Filter Adaptor
Remove

Disconnection of the battery affects
certain vehicle electronic systems, refer to
1.1 WARNING, CAUTION and NOTES before
disconnecting the battery.
1 Disconnect the battery negative terminal.
2 Disconnect the wiring harness connecto r from the oil pressure sender.

3 Remove the oil filter adaptor attaching bolts (2), four
places.
4 Remove the oil filter adaptor and discard the gasket (3).
5 Clean the surfaces of t he adaptor and cylinder block.

• Do not use a screwdriver or similar to
prise the oil filter adapter from the engine
as damage to the sealing surface may
occur.
• If required, use a rubber mallet to tap the
oil filter adapter to loosen the
components prior to separating.
Tapping should be done at bends,
corners or reinforced areas to prevent
distortion of parts.
Figure 6A1 – 27
Reinstall
Reinstallation of the oil filter adaptor is the reverse of the remo val procedure, noting the following:
1 A new gasket must be used.
2 Loosely install the oil filter adaptor attaching bolts, then tighten all fast eners to the correct torque specification.
Oil filter adaptor attaching bolt
torque specificatio n ...................................20.0- 26.0 Nm

BACK TO CHAPTER INDEX
TO MODEL INDEX
ISUZU KB P190 2007

Engine Mechanical – V6 Page 6A1–71
Page 6A1–71
3.4 Oil Level Indicator Tube
Remove
1 Remove the oil level indicator from the oil level indicator tube.
2 Remove the bolt (2) attaching the oil level indicator tube (1) and engine wiring harness retaining bracket.
3 Withdraw the oil level indi cator tube from the oil pan.
4 Remove and discard the o-ring at the bottom of the oil level indicator tube.
Figure 6A1 – 28
Reinstall
Reinstallation of the oil level indicator tube is the reverse of the removal procedure, noting the following:
1 Install a new oil level indicator o-ring.
2 Ensure the attaching bolt passes through the engine wiring harness retaining bracket.
3 Tighten bolt to the correct torque specification.
Oil level indicator tube attaching bolt
torque specificatio n ................................... 8. 0 – 12.0 Nm


BACK TO CHAPTER INDEX
TO MODEL INDEX
ISUZU KB P190 2007

Engine Mechanical – V6 Page 6A1–91
Page 6A1–91
3.11 Exhaust Manifold Assembly
Remove

Allow the engine to cool before commencing.

Disconnection of the battery affects
certain vehicle electronic systems, refer to
1.1 WARNING, CAUTION and NOTES before
disconnecting the battery.
1 Disconnect the battery negative terminal.
2 Remove the oxygen sensor harness connector (1) from the retaining bracket.
3 Disconnect the oxygen sensor wiring harness connector from the engine wiring harness connector
(2).
4 Unclip the oxygen sensor wiring harness retaining clip and move aside.
5 For the left-hand side: Remove the oil level indicator tube.
6 Raise the front of the vehicle and place on stands,
refer to Section 0A General Information .
7 Working from under the vehicle, remove the two exhaust manifold to exhaust pipe flange nuts, refer to
Section 6F Exhaust System - V6 .
Figure 6A1 – 56
8 Remove the three bolts attaching the exhaust manifold outer heat shield (1) to the exhaust manifold
(2).

Figure 6A1 – 57

BACK TO CHAPTER INDEX
TO MODEL INDEX
ISUZU KB P190 2007

Engine Mechanical – V6 Page 6A1–95
Page 6A1–95
6 Remove the bolt (1) attaching the ground connector
(2) to the cylinder head.
7 Fro the left-hand side, disconnect the engine coolant temperature (ECT) sensor wiring connector (3).
8 Unclip the engine wiring harness retaining lugs from the side of the camshaft cover.
Figure 6A1 – 63
9 For the right-hand side, remove the engine wiring harness retaining clip (1) from the engine control
module (ECM) bracket (2).
Figure 6A1 – 64
10 Disconnect the camshaft position (CMP) sensor wiring connector (1).
11 Unclip the engine wiring harness retaining lug (3) from the front of the camshaft cover.
12 Remove the ignition coil assemblies; refer to Section 6C1-3 Engine Management – V6 – Service
Operations .
13 Move the engine wiring harness clear of the camshaft cover.



Figure 6A1 – 65

BACK TO CHAPTER INDEX
TO MODEL INDEX
ISUZU KB P190 2007