2007 ISUZU KB P190 engine oil

Engine Mechanical – V6 Page 6A1–3
Page 6A1–3
Definition ..................................................................................................................... .....................................62
Diagnostic Aids................................................................................................................................................. 62
Test Description ............................................................................................................... ................................62
Diagnostic Table............................................................................................................... ................................62
Drive Belt Excessive Wear ...................................................................................................... ............................64
Definition ..................................................................................................................... .....................................64
Diagnostic Aids................................................................................................................................................. 64
Test Description ............................................................................................................... ................................64
Diagnostic Table............................................................................................................... ................................64
Accessory Drive Belt Tensioner Diagnosis ....................................................................................... ................65
Diagnostic Table............................................................................................................... ................................65
3 Minor Service Operations ....................................................................................................... .............66
3.1 Engine Oil ..................................................................................................................... ........................................66
Check.................................................................................................................................................................... 66
Replace ........................................................................................................................ .........................................67
Pressure Check ................................................................................................................. ...................................68
3.2 Oil Filter Cartridge ........................................................................................................... ....................................69
Replace ........................................................................................................................ .........................................69
3.3 Oil Filter Adaptor............................................................................................................. .....................................70
Remove ................................................................................................................................................................. 70
Reinstall ................................................................................................................................................................ 70
3.4 Oil Level Indicator Tube ...................................................................................................................................... 71
Remove ................................................................................................................................................................. 71
Reinstall ................................................................................................................................................................ 71
3.5 Accessory Drive Belt ........................................................................................................................................... 72
RWD Vehicle ......................................................................................................................................................... 72
Remove ............................................................................................................................................................72
Reinstall ...................................................................................................................... .....................................73
3.6 Accessory Drive Belt Idler Pulley .............................................................................................. .........................74
Remove ................................................................................................................................................................. 74
Reinstall ................................................................................................................................................................ 74
3.7 Accessory Drive Belt Tensioner Assembly ........................................................................................ ...............75
Remove ................................................................................................................................................................. 75
Reinstall ................................................................................................................................................................ 75
3.8 Power Steering Pump Bracket .................................................................................................... ........................76
Remove ................................................................................................................................................................. 76
Reinstall ................................................................................................................................................................ 76
3.9 Upper Intake Manifold .......................................................................................................... ...............................77
Remove ................................................................................................................................................................. 77
Disassemble ......................................................................................................................................................... 80
Clean..................................................................................................................................................................... 80
Inspect ........................................................................................................................ ..........................................81
Reassemble .......................................................................................................................................................... 81
Reinstall ................................................................................................................................................................ 82
3.10 Intake Manifold Assembly – Complete............................................................................................ ...................83
Remove ................................................................................................................................................................. 83
Disassemble ......................................................................................................................................................... 87
Clean..................................................................................................................................................................... 88
Inspect ........................................................................................................................ ..........................................88
Reassemble .......................................................................................................................................................... 89
Reinstall ................................................................................................................................................................ 89
3.11 Exhaust Manifold Assembly ...................................................................................................... .........................91
Remove ................................................................................................................................................................. 91
Inspect ........................................................................................................................ ..........................................93
Reinstall ................................................................................................................................................................ 93
3.12 Camshaft Cover ................................................................................................................. ..................................94
Remove ................................................................................................................................................................. 94
Clean and Inspect .............................................................................................................. ..................................96

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ISUZU KB P190 2007

Engine Mechanical – V6 Page 6A1–4
Page 6A1–4
Reinstall ................................................................................................................................................................ 97
3.13 Crankshaft Balancer Assembly ................................................................................................... .....................100
Remove ............................................................................................................................................................... 100
Clean and Inspect .............................................................................................................. ................................101
Reinstall .............................................................................................................................................................. 101
3.14 Crankshaft Front Seal.......................................................................................................... ..............................103
Replace ........................................................................................................................ .......................................103
3.15 Front Cover Assembly........................................................................................................... ............................104
Remove ............................................................................................................................................................... 104
Disassemble ....................................................................................................................................................... 105
Clean................................................................................................................................................................... 106
Inspect ........................................................................................................................ ........................................107
Reassemble ........................................................................................................................................................ 107
Reinstall .............................................................................................................................................................. 108
3.16 Timing Chains, Tensioners, Shoes and Guides .................................................................................... ..........110
Primary and Left-hand Secondary Timing Chain Installation ...................................................................... ..110
Excluding MY 06 Update .......................................................................................................... .......................110
MY06 Update .................................................................................................................... .............................111
Right-hand Secondary Timi ng Chain Installation ........................................................................................... 112
Excluding MY06 Update .......................................................................................................... .......................112
MY06 Update .................................................................................................................... .............................113
Remove ............................................................................................................................................................... 114
Right-hand Secondary Timing Chain.............................................................................................. ................114
Primary Timi ng Chain ........................................................................................................... ..........................118
Left-hand Secondary Timing C hain ............................................................................................... .................120
Clean................................................................................................................................................................... 123
Inspect ........................................................................................................................ ........................................124
Timing Chains .................................................................................................................. ..............................124
Camshaft Intermedi ate Sprockets .................................................................................................................. 124
Inlet and Exhaust Camshaft Sprocket ............................................................................................ ................124
Crankshaft Sprocket ....................................................................................................................................... 125
Primary Timing Chain Upper Guide............................................................................................... .................125
Primary Timing C hain Lower Guide............................................................................................... .................125
Primary Timing C hain Tensioner ................................................................................................. ...................126
Left-hand Secondary Ti ming Chain Guide ......................................................................................... ............126
Left-hand Secondary Ti ming Chain Shoe.......................................................................................... .............127
Left-hand Secondary Timi ng Chain Tensioner ..................................................................................... ..........127
Right-hand Sec ondary Timing Chain Guide ................................................................................................... 128
Right-hand Secondary Timing Chain Shoe ......................................................................................... ...........128
Right-hand Se condary Timing Chain Tensioner .................................................................................... .........129
Reinst all .............................................................................................................................................................. 130
Left-hand Secondary Timing Chain Components – Excluding MY06 Update ................................................ 130
Left-hand Secondary Timing Chain Components – MY06 Update ................................................................. 139
Primary Timing Chain Components – Excluding MY06 Update ..................................................................... 149
Primary Timing Chain Components – MY06 Update .................................................................................. ....156
Right-hand Secondary Timing Chain Components – Excluding MY06 Update .............................................. 164
Right-hand Secondary Timing Chain Components – MY06 Update............................................................... 171
3.17 Oil Pump Assembly .............................................................................................................. .............................180
Remove ............................................................................................................................................................... 180
Disassemble ....................................................................................................................................................... 181
Clean................................................................................................................................................................... 182
Inspect ........................................................................................................................ ........................................183
Reassemble ........................................................................................................................................................ 185
Reinstall .............................................................................................................................................................. 185
3.18 Camshaft Sprocket – Excluding MY06 Update ................................................................................................ 186
Remove ............................................................................................................................................................... 186
Right-hand Side................................................................................................................ ..............................186
Left-hand Side ................................................................................................................................................ 189
Clean................................................................................................................................................................... 191
Inspect ........................................................................................................................ ........................................191

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ISUZU KB P190 2007

Engine Mechanical – V6 Page 6A1–5
Page 6A1–5
Reinstall .............................................................................................................................................................. 192
3.19 Camshaft Sprocket – MY06 Update ................................................................................................ ..................193
Remove ............................................................................................................................................................... 193
Right-hand Side................................................................................................................ ..............................193
Left-hand Side ................................................................................................................................................ 196
Clean................................................................................................................................................................... 199
Inspect ........................................................................................................................ ........................................199
Reinstall .............................................................................................................................................................. 200
3.20 Camshaft ............................................................................................................................................................ 201
Remove ............................................................................................................................................................... 201
Right-hand Side................................................................................................................ ..............................201
Left-hand Side ................................................................................................................................................ 203
Clean................................................................................................................................................................... 204
Inspect ........................................................................................................................ ........................................205
Camshaft Visual Inspection ..................................................................................................... .......................205
Camshaft Meas urement ................................................................................................................................. 205
Reinstall .............................................................................................................................................................. 207
Right-hand Side................................................................................................................ ..............................207
Left-hand Side ................................................................................................................................................ 210
3.21 Rocker Arm......................................................................................................................................................... 213
Remove ............................................................................................................................................................... 213
Clean and Inspect .............................................................................................................. ................................213
Reinstall .............................................................................................................................................................. 214
3.22 Stationary Hydraulic Lash Adjuster ............................................................................................. ....................215
Remove ............................................................................................................................................................... 215
Clean and Inspect .............................................................................................................. ................................215
Reinstall .............................................................................................................................................................. 216
3.23 Cylinder Head Assembly ......................................................................................................... ..........................217
Remove ............................................................................................................................................................... 217
Right-hand Side (Bank 1) Cylinder Head ......................................................................................... ..............217
Left-hand Side (Bank 2) Cylinder Head .......................................................................................... ................218
Disassemble ....................................................................................................................................................... 219
Clean................................................................................................................................................................... 222
Inspect ........................................................................................................................ ........................................222
Visual Inspection .............................................................................................................. ..............................222
Cylinder Head Measurement.......................................................................................................................... 223
Valve Spring Inspection and Measurement ........................................................................................ ............225
Valve and Seat Grinding ........................................................................................................ ........................225
Assemble ....................................................................................................................... .....................................230
Reinstall .............................................................................................................................................................. 233
Right-hand Side (Bank 1) Cylinder Head ......................................................................................... ..............233
Left-hand Side (Bank 2) Cylinder Head .......................................................................................... ................234
3.24 Engine Mounts and Brackets ..................................................................................................... .......................236
Remove ............................................................................................................................................................... 236
Engine Mount Location ..................................................................................................................................... 237
Inspect ........................................................................................................................ ........................................237
Reinstall .............................................................................................................................................................. 238
4 Major Service Operations ....................................................................................................... ...........239
4.1 Engine Re moval ................................................................................................................. ................................239
Remove ............................................................................................................................................................... 240
Disassemble ....................................................................................................................................................... 252
Reassemble ........................................................................................................................................................ 253
Reinstall .............................................................................................................................................................. 253
4.2 Oil Pan and Oil Pump Suction Pipe Assembly ..................................................................................... ...........254
Remove ............................................................................................................................................................... 254
Disassemble ....................................................................................................................................................... 255
Clean................................................................................................................................................................... 255
Inspect ........................................................................................................................ ........................................256

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ISUZU KB P190 2007

Engine Mechanical – V6 Page 6A1–7
Page 6A1–7
Left-hand Cylinder Head Intake Face ............................................................................................ ...................324
Left-hand Cylinder H ead Exhaust Face ........................................................................................... ................325
Left-hand Cylinder H ead Rear Face .............................................................................................. ...................326
Right-hand Cylinder Head Camshaft Cover Face ................................................................................... ........327
Right-hand Cylinder Head Front Face............................................................................................ ..................328
Right-hand Cylinder Head Intake Face ........................................................................................... .................329
Right-hand Cylinder He ad Exhaust Face .......................................................................................... ...............330
Right-hand Cylinder Head Rear Face ............................................................................................. ..................331
Engine Block Front ............................................................................................................................................ 332
Engine Block Left-hand Side .................................................................................................... ........................333
Engine Block Ri ght-hand Side ................................................................................................... .......................334
Engine Block Rear .............................................................................................................. ...............................335
Engine Block Bottom......................................................................................................................................... 336
Engine Block Left-hand Deck Face ............................................................................................... ...................337
Engine Block Righ t-hand Deck Face.............................................................................................. ..................338
Engine Front Cover............................................................................................................. ...............................339
Upper Intake Manifold Top ...................................................................................................... ..........................340
Upper Intake Mani fold Front .................................................................................................... .........................341
Upper Intake Ma nifold Rear..................................................................................................... ..........................342
Lower Intake Ma nifold Top...................................................................................................... ..........................343
Oil Pan Front .................................................................................................................. ....................................344
Oil Pan Rear........................................................................................................................................................ 345
Oil Pan Bottom ................................................................................................................................................... 346
5 Specifications .....................................................................................................................................347
6 Torque Wrench Specifications................................................................................................... .......351
7 Special Tools .................................................................................................................. ....................353

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ISUZU KB P190 2007

Engine Mechanical – V6 Page 6A1–10
Page 6A1–10
1.2 Engine Components
Major Component Assemblies

Figure 6A1 – 2
Legend
1 Engine Assembly
2 Intake Manifold Assembly
3 Camshaft Cover Assembly, Left-hand
4 Camshaft Cover Assembly, Right-hand
5 Engine Front Cover Assembly
6 Oil Pan Assembly
7 Engine Flywheel
8 Engine Flywheel Bolt
9 Crankshaft Balancer
10 Crankshaft Balancer Bolt
11 Exhaust Manifold Gasket, Left-hand 12 Exhaust Manifold, Left-hand
13 Exhaust Manifold Heat Shield, Left-hand
14 Exhaust Manifold Heat Shield Bolt, Left-hand
15 Exhaust Manifold Gasket, Right-hand
16 Exhaust Manifold, Right-hand
17 Cylinder Head Exhaust Manifold Bolt
18 Exhaust Manifold Heat Shield, Right-hand
19 Exhaust Manifold Heat Shield Bolt, Right-hand
20 Ignition Coil Assembly
21 Ignition Coil Assembly Bolt
22 Spark Plug

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ISUZU KB P190 2007

Engine Mechanical – V6 Page 6A1–14
Page 6A1–14
Camshaft Cover Assembly

Figure 6A1 – 6
Legend
1 Camshaft Cover, Left-hand
2 Camshaft Cover Gasket, Left-hand
3 Camshaft Cover, Right-hand
4 Camshaft Cover Gasket, Right-hand
5 Camshaft Cover Spark Plug Port Seal
6 Camshaft Cover Bolt
7 Camshaft Cover Bolt Insulator
8 Ignition Coil Bolt Thread Insert
9 Oil Fill Cap 10 Oil Fill O-Ring
11 Camshaft Cover PCV Fitting, Left-hand
12 Camshaft Cover PCV Fitting Orifice, Right-hand
13 Oil Fill Tube
14 Camshaft Cover PCV Fitting O-Ring, Left-hand
15 Ignition Coil
16 Ignition Coil Bolt
17 Spark Plug


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ISUZU KB P190 2007

Engine Mechanical – V6 Page 6A1–15
Page 6A1–15
Cylinder Head Assembly

Figure 6A1 – 7
Legend
1 Cylinder Head, Left-hand
2 Cylinder Head, Right-hand
3 Cylinder Head Gasket, Left-hand
4 Cylinder Head Gasket, Right-hand
5 Cylinder Head Bolt
6 Cylinder Head Front Bolt
7 Cylinder Head Coolant Hole Threaded Plug
8 Spark Plug Sleeve
9 Cylinder Head Oil Gallery Expansion Plug
10 Exhaust Valve
11 Intake Valve
12 Valve Rocker Arm Assembly
13 Hydraulic Valve Lash Adjuster Assembly
14 Valve Stem Oil Seal 15 Valve Spring
16 Valve Spring Cap
17 Valve Stem Key
18 Cylinder Head Camshaft Front Thrust Bearing Cap
19 Camshaft Oil Seal Ring
20 Exhaust Camshaft
21 Intake Camshaft, Left-hand (bank 2)
22 Intake Camshaft, Right-hand (bank 1)
23 Exhaust Camshaft, Right-hand (bank 1)
24 Cylinder Head Camshaft Cap – Intermediate
25 Cylinder Head Camshaft Cap Bolt
26 Cylinder Head Oil Galley Check Valve
27 Engine Coolant Temperature Sensor

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ISUZU KB P190 2007

Engine Mechanical – V6 Page 6A1–16
Page 6A1–16
Oil Pump

Figure 6A1 – 8
Legend
1 Lower Primary Timing Chain Guide
2 Lower Primary Timing Chain Guide Bolt
3 Oil Pump Housing
4 Oil Pump Cover
5 Oil Pump Gerotor Outer Ring
6 Oil Pump Gerotor Inner Ring 7 Oil Pump Cover Bolt
8 Oil Pressure Relief Valve Bore Plug
9 Oil Pressure Relief Valve Spring
10 Oil Pressure Relief Valve
11 Oil Pressure Relief Valve Bore Plug Retainer Clip
12 Oil Pump Bolt
NOTE
Oil pump components are not serviced
individually.

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ISUZU KB P190 2007