Isuzu KB P190. Manual - part 735

Engine Mechanical – V6 

Page 6A1–163 

 

Page 6A1–163 

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 – 237 

26 

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

 

 

Figure 6A1 – 238 

27 

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

 

 

Figure 6A1 – 239 

28 

Remove Tool No. EN 46105–1 from the left-hand cylinder head camshafts. 

Engine Mechanical – V6 

Page 6A1–164 

 

Page 6A1–164 

Right-hand Secondary Timing Chain Components – Excluding MY06 Update 

1 

Install the primary timing chain components, refer to Primary Timing chain Components in this Section. 

2 

Using Tool No. EN46111 (1), rotate the crankshaft in 
a clockwise direction until the crankshaft sprocket 
timing mark (2) is aligned with the indexing mark (3) 
on the oil pump housing. 

 

Figure 6A1 – 240 

CAUTION

 

In order to install Tool No. EN 46105 onto the 
camshafts, rotate the camshafts. There 
should be no need to rotate the camshaft 
more than 45 degrees. 

 

Figure 6A1 – 241 

3 

Install Tool No. EN 46105–1 (1) onto the rear of the 
right-hand cylinder head camshafts (2). 

 

Figure 6A1 – 242 

Engine Mechanical – V6 

Page 6A1–165 

 

Page 6A1–165 

4 

Install Tool No. EN 46105–2 (1) onto the rear of the 
left-hand cylinder head camshafts (2). 

 

Figure 6A1 – 243 

 

5 

Install the right-hand secondary timing chain (1) onto 
the camshaft sprockets (2) and the right hand 
camshaft intermediate sprocket (3) aligning the chain 
in the following manner: 

 

Figure 6A1 – 244 

6 

Place the secondary timing chain around the right-
hand camshaft intermediate outer sprocket, aligning 
the bright plated timing chain link (1) with the 
alignment access hole (2) in the inner sprocket. 

 

 

Figure 6A1 – 245 

Engine Mechanical – V6 

Page 6A1–166 

 

Page 6A1–166 

7 

Wrap the secondary timing chain around both right-
hand camshaft sprockets. 

 

Figure 6A1 – 246 

CAUTION

 

Ensure that when aligning the right-hand 
secondary timing chain to the right-hand 
camshaft sprockets, that the triangular 
timing marks (1) on the sprocket are used, 
NOT the circular mark. 

8 

Align the bright plated timing chain link (2) with the 
exhaust sprocket alignment triangle mark or circular 
mark. 

 

Figure 6A1 – 247 

9 

Align the bright plated timing chain link (1) with the 
intake sprocket alignment triangle mark (2). 

 

 

Figure 6A1 – 248