Isuzu KB P190. Manual - part 729

Engine Mechanical – V6 

Page 6A1–139 

 

Page 6A1–139 

34 

Verify the left-hand secondary timing chain timing 
mark alignments (1 to 6). 

 

 

Figure 6A1 – 170 

Left-hand Secondary Timing Chain Components – MY06 Update 

1 

Install the crankshaft sprocket (1) onto the 
crankshaft (2) by aligning the keyway to the key on 
the crankshaft. 

2 

Slide the crankshaft sprocket on the crankshaft until 
the crankshaft sprocket contacts the step in the 
crankshaft. 

 

 

Figure 6A1 – 171 

N O T E  

Ensure that the crankshaft sprocket is installed 
with the timing mark (1) visible. 

 

Figure 6A1 – 172 

Engine Mechanical – V6 

Page 6A1–140 

 

Page 6A1–140 

CAUTION

 

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

 

Figure 6A1 – 173 

3 

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

CAUTION

 

All camshafts must be locked in place before 
installation of any timing chains. 

4 

Ensure that Tool No. EN 46105 is fully seated onto 
the camshafts. 

 

Figure 6A1 – 174 

5 

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 – 175 

Engine Mechanical – V6 

Page 6A1–141 

 

Page 6A1–141 

6 

Install the left-hand secondary timing chain (1) 
aligning the chain in the following manner: 

 

 

Figure 6A1 – 176 

7 

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

8 

Ensure there are two bright links located on top of 
each of the camshaft sprockets. 

 

 

Figure 6A1 – 177 

Engine Mechanical – V6 

Page 6A1–142 

 

Page 6A1–142 

CAUTION

 

When aligning the left-hand secondary timing 
chain to the camshaft sprockets, ensure the 
circular timing marks on the sprocket are 
used, NOT the triangular mark. 

9 

Align the bright plated timing chain link (1) with the 
left-hand exhaust camshaft position sprocket 
alignment circle mark (2). 

 

 

Figure 6A1 – 178 

10 

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

 

 

Figure 6A1 – 179 

CAUTION

 

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

11 

Ensure the left-hand camshaft intermediate sprocket 
is selected and orientated correctly. 

 

Figure 6A1 – 180