2007 ISUZU KB P190 belt

Engine Mechanical – V6 Page 6A1–74
Page 6A1–74
3.6 Accessory Drive Belt Idler Pulley
Remove
1 Remove the accessory drive belt, refer to 3.5 Accessory Drive Belt.
2 Remove the accessory drive belt idler pulley attaching bolt (1).
3 Remove the dished washer (2) and accessory drive belt idler pulley (3).

Figure 6A1 – 31
Reinstall
Reinstallation of the accessory drive belt idler pulley is t he reverse of the removal procedure. Tighten the bolt to the
correct torque specification.
Accessory drive belt idler pulley
attaching bolt torque specification ......................50.0 Nm


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Engine Mechanical – V6 Page 6A1–75
Page 6A1–75
3.7 Accessory Drive Belt Tensioner
Assembly
Remove
1 Remove the accessory drive belt, refer to 3.5 Accessory Drive Belt.
2 Remove the three bolts (2) attaching accessory drive belt tensioner assembly (1).
3 Remove the accessory drive belt tensioner assembly.
NOTE
The accessory drive belt tensioner pulley is not
serviced separately. If the pulley is found to be
faulty, the entire tensi oner assembly must be
replaced.

Repairing a damaged accessory drive belt
pulley should not be attempted under any
circumstances.


Figure 6A1 – 32
Reinstall
Reinstallation of the accessory drive belt tensioner assembly is the reverse of the removal procedure. Tighten the bolts to
the correct torque specification.
Accessory drive belt tensioner
attaching bolt torque specification ......................50.0 Nm



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ISUZU KB P190 2007

Engine Mechanical – V6 Page 6A1–78
Page 6A1–78
3 Retract the throttle body wiring connector lock (3).
4 While pressing the connector latch in the direction of
the arrow (4), disconnect the throttle body wiring
connector.
5 Disconnect the throttle body connector wiring harness from its retaining clip (5).
6 Remove the main wiring harness retainer pin (6) from the intake manifold by pushing from the front to the
rear using a suitable piece of 5 mm steel rod (or an
Allen key).

The following precautions must be followed
when disconnecting the throttle body wiring
connector:
• Do not use any mechanical device such
as a screwdriver to disengage the
harness connector (1) from the throttle
body (2).
• When retracting the throttle wiring
connector lock (3), take care not to
disengage the lock from the connector.
• Do not pull on the connector wires.
• Take care not to break the barbed
harness retainer pin (6) while removing
the harness retainer from the intake
manifold.
• Should the pin be broken, then it is
vital that a new harness retainer is
fitted to the wiring harness shield. If
not, the harness will foul the engine
drive belt.
Figure 6A1 – 35
7 Disconnect the brake booster hoses from the upper intake manifold:

Figure 6A1 – 36

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ISUZU KB P190 2007

Engine Mechanical – V6 Page 6A1–84
Page 6A1–84
4 Retract the throttle body wiring connector lock (3).
5 While pressing the connector latch in the direction of
the arrow (4), disconnect the throttle body wiring
connector.
6 Disconnect the throttle body connector wiring harness from its retaining clip (5).
7 Remove the main wiring harness retainer pin (6) from the intake manifold by pushing from the front to the
rear using a suitable piece of 5 mm steel rod (or an
Allen key).

The following precautions must be followed
when disconnecting the throttle body wiring
connector:
• Do not use any mechanical device such
as a screwdriver to disengage the
harness connector (1) from the throttle
body (2).
• When retracting the throttle wiring
connector lock (3), take care not to
disengage the lock from the connector.
• Do not pull on the connector wires.
• Take care not to break the barbed
harness retainer pin (6) while removing
the harness retainer from the intake
manifold.
• Should the pin be broken, then it is vital
that a new harness retainer is fitted to the
wiring harness shield. If not, the harness
will foul the engine drive belt.

Figure 6A1 – 44
8 Disconnect the brake booster hose (1), from the upper
intake manifold:


Figure 6A1 – 45

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ISUZU KB P190 2007

Engine Mechanical – V6 Page 6A1–100
Page 6A1–100
3.13 Crankshaft Balancer Assembly
Remove
1 Remove the accessory drive belt, refer to 3.5 Accessory Drive Belt.
2 Remove the starter motor, refer to Section 6D1-2 Starting System.
3 Install Tool No. EN-46106 (1) into the starter motor opening to stop the camshaft from rotating.

Figure 6A1 – 75
4 Remove the bolt (1) attaching the crankshaft balancer assembly (2) to the crankshaft.

Figure 6A1 – 76
5 Remove the crankshaft balancer assembly (1) from the crankshaft using the appropriate tool:
Tool No. J-41816 (2) or equivalent.


Figure 6A1 – 77

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Engine Mechanical – V6 Page 6A1–101
Page 6A1–101
Clean and Inspect
1 Using a suitable non-corrosive cleaning solvent and a soft bristled parts cleaning brush, clean the crankshaft
balancer assembly.

Safety glasses must be worn when using
compressed air.
2 Dry the crankshaft balancer assembly using compressed air.
3 Inspect the crankshaft balancer assemb ly for the following fault conditions:
• Hub to crankshaft inner surface for wear or damage,
• Sealing surface for wear, grooving or scoring,
• Rubber ring between the hub and the pulley for wear, chunking and general deterioration, and
• Drive belt ribs of the pulley for damage.
Reinstall
CAUTION
Do not lubricate the crankshaft front oil seal
or crankshaft balancer sealing surfaces. The
crankshaft balancer must be installed onto a
dry seal.
1 Lubricate the crankshaft balancer assembly hub bore.
2 Partially install the crankshaft balancer assembly onto the crankshaft.

Figure 6A1 – 78

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Engine Mechanical – V6 Page 6A1–248
Page 6A1–248
50 Unplug the connector from the oil level sensor (1).
51 Remove the attaching bolt (2) holding the ground cable to the engine block.


Figure 6A1 – 429
52 Remove the accessory drive belt using a socket wrench (1), to reduce tension rotate the drive belt
tensioner (2) clockwise, then while holding the
tensioner in the reduced tens ion position, remove the
accessory drive belt (3).


Figure 6A1 – 430
53 Remove the power steering pump bolts (two places),
remove the pump (1) from the mounting bracket and
disconnect the power steering hoses (two places)
from the pump body.

NOTE
Plug the open ends of the power steering hoses
to prevent the ingre ss of contaminants.

Figure 6A1 – 431

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Engine Mechanical – V6 Page 6A1–351
Page 6A1–351
6 Torque Wrench Specifications
ATTENTION
„ 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.

Oil Pan Drain Plug ................................................................................ 25.0 Nm
Oil Filter Adaptor Attach ing Bolt................................................ 20.0 – 26.0 Nm
Oil Level Indicator Tube Atta ching Bolt........................................ 8.0 – 12.0 Nm
Accessory Drive Belt Idler Pu lley Attaching Bolt................................... 50.0 Nm
Accessory Drive Belt Tensio ner Attaching Bolt .................................... 50.0 Nm
Power Steering Reserv oir Bracket Attaching Screw.............................. 9.0 Nm
Power Steering Pump Bracket A ttaching Bolt ........................... 49. 0 – 67.0 Nm
Upper Intake Manifold to Lower Intake Manifold Attaching Bolt ........... 23.0 Nm
Upper Intake Manifold to Cylinder Head Attaching Bolt........................ 23.0 Nm
Lower Intake Manifold to Cylind er Head Attaching Bolt........................ 23.0 Nm
Fuel Injector Wiring Harness Br acket Attaching bolt .............................. 9. 0 Nm
Exhaust Manifold to Cylinder He ad Attaching Bolt..................... 17.0 - 23.0 Nm
Exhaust Manifold Heat Shield Attaching Bolt ............................... 8.0 - 12.0 Nm
Battery Harness Ground Terminal Attaching Nut ................................. 13. 0 Nm
Camshaft Cover Attachi ng Bolt................................................... 8.0 – 12.0 Nm
Engine Ground Connec tor Bolt............................................................. 10.0 Nm
Engine Wiring Harness Former A ttaching Bolt .......................... 12.0 – 16.0 Nm
„ Crankshaft Balancer A ssembly Attaching Bolt:
Stage 1 ..................................................................................... 90.0 –110.0 Nm
Stage 2 ....................................................................................................... 150 °
Engine Front Cover Assembly A ttaching Bolt ............................ 20. 0 – 26.0 Nm
Camshaft Intermediate Sprocket Attaching Bolt ........................ 58. 0 – 72.0 Nm
Secondary Timing Chai n Guide Attaching Bolt.......................... 20.0 – 26.0 Nm
Secondary Timing Chai n Shoe Attaching Bolt ........................... 20.0 – 26.0 Nm
Secondary Timing Chain Tensioner Attachi ng Bolt ................... 20.0 – 26.0 Nm
Primary Timing Chain Upper Gui de Attaching Bolt.................... 20.0 – 26.0 Nm
Primary Timing Chain Tensioner Attaching Bolt........................ 20. 0 – 26.0 Nm
Oil Pump Assembly Attach ing Bolt............................................ 20.0 – 26.0 Nm
Camshaft Sprocket Attachi ng Bolt............................................. 49.0 – 67.0 Nm
Exhaust Camshaft Sprocket Atta ching Bolt............................... 49.0 – 67.0 Nm
Camshaft Bearing Cap Attach ing Bolt......................................... 8.0 – 12.0 Nm
Cylinder Head Thr eaded Plug.............................................................. 31.0 Nm
„ Cylinder Head M11 Attaching Bolt:
Stage 1 ...................................................................................... 40.0 – 50.0 Nm
Stage 2 ....................................................................................................... 120 °
„ Cylinder Head M8 Attaching Bolt:
Stage 1 ...................................................................................... 12.0 – 18.0 Nm
Stage 2 ......................................................................................................... 60 °
Engine Mount Bracket to Cylinder Bl ock Attaching Bolt............ 43.0 – 57.0 Nm
Engine Mount to Bracket Atta ching Nut..................................... 70.0 – 90.0 Nm
Engine Mount to Frame Atta ching Nut...................................... 44.0 – 60.0 Nm
Engine Lift Bracket Attachi ng Bolt.......................................... 58.0 – 72.0.0 Nm
Knock Sensor Attach ing Nut................................................................. 23.0 Nm

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ISUZU KB P190 2007