Isuzu KB P190. Manual — part 748

Engine Mechanical – V6

Page 6A1–215

Page 6A1–215

3.22 Stationary Hydraulic Lash Adjuster

Remove

1

Remove the rocker arms from the appropriate
cylinder head, refer to

3.20 Rocker Arm

.

2

Remove the stationary hydraulic lash adjuster (SHLA)
from the cylinder head (2).

CAUTION

• Do not stroke/cycle the stationary

hydraulic lash adjuster (1) plunger
without oil in the lower pressure
chamber.

• Do not allow the stationary hydraulic lash

adjuster to tip over, plunger down, after
the oil fill.

Figure 6A1 – 362

Clean and Inspect

1

Inspect the stationary hydraulic lash adjuster (SHLA)
in the following areas:
•

a plugged oil passage (1),

•

a scored or worn camshaft follower pivot
area (2),

•

a damaged or broken retainer (3), and

•

a severely scuffed or worn SHLA body (4).

2

Replace the SHLA as required.

Figure 6A1 – 363

Engine Mechanical – V6

Page 6A1–216

Page 6A1–216

Reinstall

1

Fill the stationary hydraulic lash adjuster (SHLA) with
clean engine oil. Take precautions to prevent
scratching the pivot sphere area of the SHLA.

2

Lubricate the SHLA bores in the cylinder head with
clean engine oil.

3

Install the SHLA in the cylinder head (2).

4

Apply a liberal amount of commercially available
camshaft/lifter prelube to the SHLA pivot spheres.

5

Install the rocker arms, refer to

3.20 Rocker Arm

.

CAUTION

Ensure each lash adjuster (1) is filled with
clean engine oil and the adjuster does not
tip over, plunger down, before the
installation. The loss of oil in the adjuster
lower pressure chamber, or the dry
stroking/cycling of the adjuster plunger, will
allow air to enter the high pressure chamber
of the valve lifter. Air in the high pressure
chamber of the adjuster may not be purged
causing cavitation and extensive engine
component damage.

Figure 6A1 – 364

Engine Mechanical – V6

Page 6A1–217

Page 6A1–217

3.23 Cylinder Head Assembly

Remove

Right-hand Side (Bank 1) Cylinder Head

1

Remove the heater hoses and heater pipe assembly, refer to

Section 6B1 Engine Cooling – V6

.

2

Remove the intake manifold assembly, refer to

3.10 Intake Manifold Assembly – Complete

.

3

Remove the exhaust manifold, refer to

3.11 Exhaust Manifold Assembly

.

4

Remove engine harness ground terminal attaching bolts from the cylinder head, refer to

Section 8A Electrical Body and Chassis

.

5

Remove the right-hand side secondary timing chain, refer to

3.16 Timing Chains, Tensioners, Shoes and Guides

.

6

Remove the camshaft sprockets, refer to

3.18 Camshaft Sprocket

.

7

Remove the cylinder head attaching bolt (1), eight
places.

8

Remove the cylinder head.

N O T E

There is no bolt fitted to the hole in the rear of
the right-hand-hand cylinder head.

Figure 6A1 – 365

9

Remove and discard the cylinder head gasket (1).

Figure 6A1 – 366

Engine Mechanical – V6

Page 6A1–218

Page 6A1–218

Left-hand Side (Bank 2) Cylinder Head

1

Remove the intake manifold assembly, refer to

3.10 Intake Manifold Assembly – Complete

.

2

Remove the exhaust manifold, refer to

3.11 Exhaust Manifold Assembly

.

3

Remove the power steering reservoir and pump mounting brackets, refer to

3.8 Power Steering Pump Bracket

.

N O T E

Do not disconnect the power steering pipes
and/or hoses.

4

Remove the oil filter adapter upper bolt.

N O T E

Do not remove the oil filter adapter.

5

Remove the engine coolant temperature (ECT) sensor, refer to

Section 6C1-3 Engine Management – V6 – Service

Operations

.

6

Remove engine harness ground terminal attaching bolt from cylinder head, refer to

Section 8A Electrical Body &

Chassis

.

7

Remove the left-hand bank secondary timing chain, refer to

3.16 Timing Chains, Tensioners, Shoes and Guides

.

8

Remove the camshaft position actuators, refer to

3.18 Camshaft Sprocket

.

9

Remove the front M8 (1) cylinder head attaching bolt,
two places.

10

Remove the cylinder head attaching bolt (2), eight
places.

11

Remove the cylinder head (3).

Figure 6A1 – 367

12

Remove and discard the cylinder head gasket (1).

Figure 6A1 – 368