Isuzu KB P190. Manual - part 733

Engine Mechanical – V6 

Page 6A1–155 

 

Page 6A1–155 

24 

Verify the proper placement of the primary timing 
chain tensioner gasket tab (1). 

25 

Tighten the primary timing chain tensioner bolts (2) to 
the correct torque specification. 

 

 

 

Primary timing chain tensioner 
attaching bolt torque specification...........20.0 – 26.0 Nm 

 

 

Figure 6A1 – 216 

26 

Release the primary timing chain tensioner (1) by 
pulling out Tool No. EN 46112 (2) and unlocking the 
tensioner shaft. 

 

 

Figure 6A1 – 217 

Engine Mechanical – V6 

Page 6A1–156 

 

Page 6A1–156 

27 

Verify the primary and left-hand secondary timing 
chain timing mark alignments (1 to 12). 

 

Figure 6A1 – 218 

28 

Remove Tool No. EN 46105 from the left-hand and right-hand cylinder head camshafts. 

Primary Timing Chain Components – MY06 Update 

1 

If previously removed, install the left-hand secondary 
timing chain components, refer to Left-hand 
Secondary Timing Chain Components in this Section.

CAUTION

 

The right-hand camshaft intermediate 
sprocket (2) is marked with the letters RB 
and ‘FRONT’, and the left-hand sprocket (1) 
is marked with the letters LB and 'FRONT' 
Ensure the correct sprocket is used and the 
FRONT text is facing forwards when 
installed. 

2 

Ensure the right-hand camshaft intermediate 
sprocket (2) is selected and orientated correctly. 

 

 

Figure 6A1 – 219 

Engine Mechanical – V6 

Page 6A1–157 

 

Page 6A1–157 

3 

Install the right-hand camshaft intermediate 
sprocket (2). 

4 

Install the sprocket bolt (1) and tighten to the correct 
torque specification. 

 

 

Camshaft intermediate sprocket 
attaching bolt torque specification...........58.0 – 72.0 Nm 

 

 

Figure 6A1 – 220 

5 

Ensure that the crankshaft sprocket timing mark (1) is 
aligned with the indexing mark (2) on the oil pump 
housing. 

 

 

Figure 6A1 – 221 

6 

Install the primary timing chain (1). 

 

 

Figure 6A1 – 222 

Engine Mechanical – V6 

Page 6A1–158 

 

Page 6A1–158 

7 

Wrap the primary timing chain around the large 
sprockets of each camshaft intermediate sprocket 
and the crankshaft sprocket, aligning the bright plated 
chain links as follows: 

 

 

Figure 6A1 – 223 

8 

The left-hand camshaft intermediate sprocket timing 
mark (1) will align with a bright plated primary timing 
chain link (2). 

 

 

Figure 6A1 – 224 

9 

The right-hand camshaft intermediate sprocket timing 
mark (1) will align with a bright plated primary timing 
chain link (2). 

 

 

Figure 6A1 – 225