Isuzu KB P190. Manual - part 721

Engine Mechanical – V6 

Page 6A1–107 

 

Page 6A1–107 

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 6A1–108 

 

Page 6A1–108 

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 

Engine Mechanical – V6 

Page 6A1–109 

 

Page 6A1–109 

4 

Place the front cover onto the special tools and slide 
into position. 

5 

Remove the special tools from the cylinder block. 

Figure 6A1 – 96 

6 

Hand start the front cover bolts (1). 

Figure 6A1 – 97 

7 

Tighten the engine front cover bolts to the correct 
torque specification, in the sequence shown. 

 

 

Engine front cover assembly attaching  
bolt torque specification ..........................20.0 – 26.0 Nm 

 

 

8 

Fill the cooling system, refer to 

Section 6B1 Engine 

Cooling – V6

. 

9 

Change the engine oil, refer to 

3.1  Engine Oil

. 

 

 

 

Figure 6A1 – 98 

Engine Mechanical – V6 

Page 6A1–110 

 

Page 6A1–110 

3.16  Timing Chains, Tensioners, Shoes and 

Guides 

CAUTION

 

Setting the camshaft timing is required 
whenever the camshaft drive system has 
been disturbed and the relationship between 
any chain and sprocket has been lost. If 
required, follow the left-hand secondary 
timing chain reinstallation procedure to reset 
the camshaft timing. 

Primary and Left-hand Secondary Timing Chain Installation 

Excluding MY06 Update 

 

Figure 6A1 – 99 

Legend 

1 

Intake Camshaft Sprocket Timing Mark – Left-hand 

2 

Secondary Timing Chain Bright Plated Link – Left-hand 

3 

Exhaust Camshaft Sprocket Timing Mark – Left-hand 

4 

Secondary Timing Chain – Left-hand 

5 

Primary Timing Chain 

6 

Camshaft Intermediate Sprocket Timing Mark – Left-hand 

7 

Camshaft Intermediate Sprocket – Left-hand 

8 

Primary Timing Chain Bright Plated Link 

9 

Camshaft Intermediate Sprocket Timing Mark – Right-hand 

10  

Camshaft Intermediate Sprocket – Right-hand

 

11  

Crankshaft Sprocket 

12 

Crankshaft Sprocket Timing Mark