Isuzu KB P190. Manual — part 669

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.

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:

N O T E

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.

Engine Mechanical – V6

Page 6A1–199

5

Remove the two long bolts (1) attaching the rear of
the oil pan to the crankshaft rear oil seal housing.

6

Remove the remaining eleven bolts attaching the oil
pan to the cylinder block.

7

Using the shear points located at the edge of the oil
pan shear the RTV sealant.

8

Remove the oil pan from the cylinder block.

Figure 6A1 – 353

Engine Mechanical – V6

Page 6A1–200

Disassemble

1

Remove the following:

2

Oil pan drain plug (7) and sleeve (8).

3

Oil level sensor (9).

4

Crankshaft oil deflector bolts (6) and remove the deflector.

5

Oil pump suction pipe bolts (5) and the suction pipe (3).

6

Oil pump suction pipe gasket (4) from the suction pipe and discard.

Figure 6A1 – 354

Clean

1

Remove any remaining thread sealant, gasket material or sealant using a commercially available wooden or plastic
scraper.

2

Clean the oil pan and oil pan components in solvent.

3

Clean out debris from the bolt holes.

Safety glasses must be worn when using
compressed air.

4

Dry the oil pan and oil pan components with compressed air.