Isuzu KB P190. Service manual — part 720

Engine Mechanical – V6

Page 6A1–103

Page 6A1–103

3.14 Crankshaft Front Seal

Replace

1

Remove the crankshaft balancer assembly, refer to

3.13 Crankshaft Balancer Assembly

.

2

Using a flat bladed tool (2) or seal remover, Tool No.
E-308, carefully remove the crankshaft front seal (1)
from the front cover.

Figure 6A1 – 81

3

Using crankshaft front seal installer, Tool No. J-29184
(2) and a suitable hammer, install a new crankshaft
front seal (1) until fully seated against the front cover
housing.

4

Install the crankshaft balancer assembly, refer to

3.13 Crankshaft Balancer Assembly

.

CAUTION

Do not lubricate the crankshaft front oil seal
or crankshaft balancer sealing surfaces. The
crankshaft balancer is installed into a dry
seal.

Figure 6A1 – 82

Engine Mechanical – V6

Page 6A1–104

Page 6A1–104

3.15 Front Cover Assembly

Remove

1

Drain the engine coolant, refer to

Section 6B1 Engine Cooling

.

2

Remove the water outlet pipe and coolant pump assembly, refer to

Section 6B1 Engine Cooling

:

3

Remove the camshaft covers, refer to

3.12 Camshaft Cover

.

4

Remove the crankshaft balancer assembly, refer to

3.13 Crankshaft Balancer Assembly

.

5

Disconnect the purge vent hose from the water outlet pipe.

N O T E

Do not disconnect the power steering pipes or
drain the power steering fluid.

6

Remove the power steering pump reservoir mounting bracket, refer to

3.8 Power Steering Pump Bracket

.

7

Remove the camshaft position sensor, refer to

Section 6C1-3 Engine Management – V6 – Service Operations

.

N O T E

Do not disconnect the A/C compressor pipes.

8

Remove the bolt (2), 22 places, attaching the front
cover assembly (1).

CAUTION

Only use the prise points and a bolt in the
jackscrew hole to remove the engine front
cover.

9

Loosely install a 10 x 1.5 mm bolt in the jackscrew
hole (1).

10

Using the prise points (2) located at the edge of the
front cover and the jackscrew, shear the RTV sealant.

Figure 6A1 – 83

Figure 6A1 – 84

Engine Mechanical – V6

Page 6A1–105

Page 6A1–105

11

Remove the front cover assembly (1).

Figure 6A1 – 85

Disassemble

1

Remove the crankshaft front oil seal (1) from the
engine front cover (2) using a flat bladed tool or seal
remover, Tool No. E-308. Discard the seal.

Figure 6A1 – 86

2

Remove the camshaft position actuator valve oil
seals (1) from the engine front cover (2). Discard the
seals.

Figure 6A1 – 87

Engine Mechanical – V6

Page 6A1–106

Page 6A1–106

3

Remove the coolant pump seal (1) from the engine
front cover (2). Discard the seal.

Figure 6A1 – 88

Clean

4

Remove any RTV sealant (1) from the engine front
cover using a plastic or wood scraper.

CAUTION

• Insert a piece of cardboard between the

front of the oil pan and oil pump to
prevent any contaminants from falling
into the oil pan.

• Do not use a sharp or metal gasket

scraper to clean the sealing surfaces.

5

Clean out any debris from the bolt holes.

6

Clean the front cover with a suitable cleaning solvent.

7

Dry the front cover with compressed air.

Safety glasses must be worn when using
compressed air.

Figure 6A1 – 89

8

Use compressed air to remove any engine coolant from the engine cooling passages and from the top of the oil
pan oil deflector.