2007 ISUZU KB P190 engine coolant

Engine Mechanical – V6 Page 6A1–197

65 Remove the engine mount attaching nuts (1), (two
places) on the chassis side of the left-hand and right-
hand engine mounts.

Figure 6A1 – 351
66 Slowly raise the engine using the engine hoist continue to lift and manoeuvre the engine assembly
clear of the engine compartment.
Figure 6A1 – 352
Disassemble
1 Remove the wiring harness connectors and ground connections from the engine and transmission assembly and carefully set the wiring harness to one side, refer to 8A Electrical Body & Chassis.
2 Remove the engine control module (ECM) and mounting bracket, refer to 6C1-3 Engine Management – V6 – Service Operations.
3 Mount the engine assembly on a suitable engine stand.
5 Drain the engine oil into a suitable, clean container.
6 Remove the following components: a Oil filter adaptor, refer to 3.3 Oil Filter Adaptor.
b Engine coolant inlet pipe, refer to 6B1 Engine Cooling – V6.
c Heater pipe assembly, refer to 6B1 Engine Cooling – V6.
d Thermostat assembly, refer to 6B1 Engine Cooling – V6.
e Exhaust manifold assemblies, refer to 3.11Exhaust Manifold Assembly.
f Engine coolant outlet pipe, refer to 6B1 Engine Cooling – V6.
g Crankshaft position sensor, refer to 6C1-3 Engine Management – V6 – Service Operations.
h Knock sensors, refer to 6C1-3 Engine Management – V6 – Service Operations.
i Engine mounts and brackets, refer to 3.23 Engine Mounts and Brackets.
j Flexplate assemblies, refer to 4.3 Flexplate Assembly.

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ISUZU KB P190 2007

Engine Mechanical – V6 Page 6A1–198

k Timing chains, tensioners, shoes, guides & sprockets, refer to 3.16 Timing Chains, Tensioners, Shoes and
Guides.
l Cylinder head assemblies, refer to 3.22 Cylinder Head Assembly.
m Oil pan assembly, refer to 4.2 Oil Pan and Oil Pump Suction Pipe Assembly.
n Piston and connecting rod assemblies, refer to 4.5 Pistons, Pins, Rings, Connecting Rods and Big-end Bearings.
o Crankshaft assembly, refer to 4.6 Crankshaft and Main Bearings.
p Piston oil nozzles, refer 4.5 Pistons, Pins, Rings, Connecting Rods and Big-end Bearings.
Reassemble
Reassembly of the engine assembly is the reverse of the disassembly procedure.
Reinstall
Reinstallation of the engine assembly is the reverse to the removal procedure, noting the following:
NOTE
Refer to 6 Torque Wrench Specifications
for the correct torque specifications.


1 Tighten the fasteners to the correct torque specification.
Engine ground connector bolt
torque specification ............................................10.0 Nm
Power steering high pressure line
attaching bolt torque specification .............8.0 – 12.0 Nm
Power steering high pressure line
flare nut torque specification ...................25.0 – 35.0 Nm
Engine mount to frame attaching bolt
torque specification .................................44.0 – 60.0 Nm
Knock Sensor Attaching Nut
torque specification ............................................23.0 Nm
2 Use only the specified engine lubricant type and quantity. It is recommended that a fluorescent oil dye, such as that contained in J 28481-B, be added to assist in any future oil leak diagnosis.
3 Fill the cooling system with the correct quantity and grade of coolant, refer to 6B1 Engine Cooling – V6.
4 Check transmission fluid level, replenishing as required, using the specified lubricant for the transmission fitted, refer to 7C1 Automatic – 4L60E – General Information.
5 Disable the ignition system, refer to 6C1-3 Engine Management – V6 – Service Operations.
6 Crank the engine several times. Listen for any unusual noises or evidence that parts are binding.
7 Enable the ignition system. Start the engine and listen for any unusual noises.
8 Check the vehicle oil pressure gauge or warning indicator and confirm the engine has acceptable oil pressure. If required, install an oil pressure gauge and measure the engine oil pressure, refer to 2.19 Engine Oil Pressure
Diagnosis.
9 Run the engine at about 1,000 r.p.m. until the engine has reached normal operating temperature.
10 Listen for any unusual noises.
11 Check for oil, fuel, coolant and exhaust leaks while the engine is running, correcting as required.
12 Perform a final inspection for correct engine oil and coolant levels.

4.2 Oil Pan and Oil Pump Suction Pipe Assembly
Remove
1 Remove the engine assembly from the vehicle, refer to 4.1 Engine .
2 Separate the engine and transmission assemblies, refer to 7C1 Automatic – 4L60E – General Information.
3 Mount the engine assembly on a suitable engine stand.
4 Remove the engine front cover, refer to 3.15 Front Cover Assembly.

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Engine Mechanical – V6 Page 6A1–236

5 Remove the right-hand side M14 coolant drain
threaded plug (1).

Figure 6A1 – 440
6 Remove the rear M14 oil gallery threaded plug (1).

Figure 6A1 – 441
7 Remove the left-hand side M14 coolant drain threaded plug (1).

Figure 6A1 – 442

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Engine Mechanical – V6 Page 6A1–237

8 Remove the left-hand side M20 oil gallery threaded
plug (1).

Figure 6A1 – 443
CAUTION
Do not force coolant expansion plugs
downwards during removal procedure as the
cylinder block will be damaged.
9 Remove the coolant expansion plugs (1).


Figure 6A1 – 444
10 Remove the cylinder block-to-transmission alignment dowels (1).

Figure 6A1 – 445

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Engine Mechanical – V6 Page 6A1–241

2 Install a new front oil gallery expansion plug (1).
Figure 6A1 – 451
3 Install the cylinder block-to-transmission alignment dowels (1).
Figure 6A1 – 452
4 Place RTV sealant on new coolant expansion plugs (1) and install the new coolant expansion plugs.
Figure 6A1 – 453

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Engine Mechanical – V6 Page 6A1–242

5 Install the left-hand side M20 oil gallery threaded plug
(1) and tighten to the correct torque specification.




Left-hand side M20 cylinder block
oil gallery threaded plug
torque specification .................................27.0 – 35.0 Nm
Figure 6A1 – 454
6 Install the left-hand side M14 coolant drain threaded plug (1) and tighten to the correct torque specification.




Left-hand side M14 cylinder block
coolant drain threaded plug
torque specification .................................27.0 – 35.0 Nm
Figure 6A1 – 455
7 Install the M14 rear oil gallery threaded plug (1) and tighten to the correct torque specification.




M14 cylinder block rear oil gallery
threaded plug torque specification ..........27.0 – 35.0 Nm

Figure 6A1 – 456

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ISUZU KB P190 2007

Engine Mechanical – V6 Page 6A1–243

8 Install the right-hand side M14 coolant drain threaded
plug (1) and tighten to the correct torque specification.




Right-hand side M14 cylinder block
coolant drain threaded plug
torque specification .................................27.0 – 35.0 Nm

Figure 6A1 – 457
9 Install the right-hand side M14 oil gallery threaded plug (1) and tighten to the correct torque specification.




Right-hand side M14 cylinder block
oil gallery threaded plug
torque specification .................................27.0 – 35.0 Nm

Figure 6A1 – 458
10 Install the cylinder block-to-oil pan alignment dowels (1).

Figure 6A1 – 459

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ISUZU KB P190 2007

Engine Mechanical – V6 Page 6A1–251

17 Inspect the insert for correct installation into the
tapped hole. A correctly installed insert (1) will be
either flush or slightly below flush with the surface of
the base material (2).
Figure 6A1 – 480
18 Any installed insert that restricts or blocks an oil or engine coolant passage (3) will need to have the oil or
engine coolant passage drilled out (4) to the original
size of the oil or engine coolant passage. After drilling
the restriction or blockage, clean out any swarf and
thread the installation driver tool through the insert
again to remove any burrs caused by the drilling of
the oil or engine coolant passage.
Figure 6A1 – 481
Main Bearing Cap Bolt Hole Thread Repair
The crankshaft main bearing bolt hole thread repair tools
are in Tool No. J 42385-2000 and J 42385-700 which
consist of the following:
• Drill (1) for outboard holes J 42385-702
• Tap (2) for outboard holes J 42385-703
• Installation driver (3) for outboard holes J 42385-704
• Bushing (4) for outboard holes J 42385-726
• Alignment pin (5) for outboard holes J 42385-727
• Bolts (6) for outboard holes J 42385-728
• Drill (7) for inboard holes J 42385-720
• Tap (8) for inboard holes J 42385-721
• Installation driver (9) for inboard holes J 42385-722
• Bushing (10) J 42385-713
• Alignment pin (11) J 42385-308
• Bolts (12) J 42385-734
• Fixture plate (13) J 42385-712
Figure 6A1 – 482

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