2007 ISUZU KB P190 Workshop Repair Manual

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Page 2841 of 6020

ISUZU KB P190 2007 Workshop Repair Manual Engine Mechanical – V6 Page 6A1–64
Page 6A1–64
Drive Belt Excessive Wear
Definition
Excessive wear can be defined as wear at the outside ribs of the drive belt (frayed edges), usually cause

Engine Mechanical – V6 Page 6A1–64
Page 6A1–64
Drive Belt Excessive Wear
Definition
Excessive wear can be defined as wear at the outside ribs of the drive belt (frayed edges), usually caused by an
incorrectly installed drive belt
Diagnostic Aids
Excessive wear of a drive belt is usually caused by an incorre ct installation or an incorrect drive belt fitted. Minor pulley
misalignment will not cause excessive wear, but will cause the drive belt to fall off. Major pulley misalignment may cause
excessive wear, but would also re sult in the drive belt falling off.
Test Description
The numbers below refer to steps in the diagnostic table.
2 Confirms the drive belt is correctly installed onto all of the accessory drive system pulleys. Wear on the drive belt
may be caused by incorrectly positioning the drive belt by one or more grooves to a particular pulley.
3 The installation of the drive belt that is the incorrect width will cause wear on the drive belt. The drive belt ribs
should match all the grooves on all the pu lleys in the accessory drive system.
4 Confirms the drive belt is not cont acting any parts of the engine or body wh ile the engine is running. There should
be sufficient clearance when the accessory drive component loads varies. The drive belt should not come into
contact with any engine or body parts.
Diagnostic Table
Step Action Yes No
1
Did you review the information provided in 2.2 Symptoms, and
perform the required inspections. Go to Step 2 Go to
2.2 Symptoms
2 Inspect the accessory drive belt for correct installation.
Is the drive belt installed correctly? Go to Step 5 Go to Step 3
3 Ensure that the drive belt is
the correct one for the application.
Is the correct drive belt installed? Go to Step 5 Go to Step 4
4 Is the drive belt contacting any engine or body components with the
engine running? Go to Step 6 Refer to Diagnostic
Aids in this Section
5 Install a new accessory drive belt, re fer to 3.5 Accessory Drive Belt.
Did you replace the accessory drive belt? Go to Step 6 —
6 If required, reinstall the accessory drive belt and operate the system to
confirm the repair.
Did you correct the excessive wear? Accessory drive
system OK Go to Step 2

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ISUZU KB P190 2007

Page 2842 of 6020

ISUZU KB P190 2007 Workshop Repair Manual Engine Mechanical – V6 Page 6A1–65
Page 6A1–65
Accessory Drive Belt Tensioner Diagnosis
Diagnostic Table
Step Action Yes No
1 1 Remove the accessory drive belt.
2 Inspect the drive be

Page 2843 of 6020

ISUZU KB P190 2007 Workshop Repair Manual 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

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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ISUZU KB P190 2007

Page 2844 of 6020

ISUZU KB P190 2007 Workshop Repair Manual 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

Page 2845 of 6020

ISUZU KB P190 2007 Workshop Repair Manual 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 wil

Page 2846 of 6020

ISUZU KB P190 2007 Workshop Repair Manual 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

Page 2847 of 6020

ISUZU KB P190 2007 Workshop Repair Manual 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, CAUTIO

Page 2848 of 6020

ISUZU KB P190 2007 Workshop Repair Manual 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 t

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