Isuzu KB P190. Service manual — part 642

Engine Mechanical – V6

Page 6A1–89

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 6A1–90

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.

Engine Mechanical – V6

Page 6A1–91

Inspect

1

Inspect both sides of the engine front cover for the
following conditions:
•

damage to the camshaft position actuator valve
oil seal bores (1),

•

damage to the bolt holes (2),

•

damage and/or corrosion to the engine coolant
passage (3),

•

dents or damage to the exterior (4),

•

damage to the crankshaft front oil seal bore (5),

•

gouges or damage to the coolant pump sealing
surfaces (6), and

•

damage to the coolant pump bolt hole
threads (7).

2

Repair or replace the front cover as required.

Figure 6A1 – 90

Reassemble

1

Install a new crankshaft front oil seal (1) into the front
cover (2) using crankshaft front seal installer, Tool
No. J-29184 (3) and a suitable hammer.

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 – 91

2

Install a new camshaft position actuator valve oil seal
(1) into the front cover (2) using Tool No. EN-46103
(3) and a suitable hammer.

Figure 6A1 – 92

Engine Mechanical – V6

Page 6A1–92

Reinstall

Reinstallation of the front cover is the reverse of the removal procedure, noting the following:

1

Install the guide pins, Tool No. EN-46109 (1) into the
engine block, two places.

Figure 6A1 – 93

2

Install a new engine front cover to cylinder block
seal (1).

Figure 6A1 – 94

3

Apply a 3 mm bead of RTV sealant (1) to the front
cover.

Figure 6A1 – 95