Isuzu KB P190. Manual - part 653

Engine Mechanical – V6 

Page 6A1–133 

 

15 

Install the secondary timing chain shoe bolt (1) and 
tighten to the correct torque specification. 

 

 

 

 

Secondary timing chain shoe 
attaching bolt torque specification...........20.0 – 26.0 Nm 

 

Figure 6A1 – 202 

16 

Ensure the right-hand secondary timing chain 
tensioner is selected and orientated correctly. 

 

Figure 6A1 – 203 

17 

Reset the right-hand secondary timing chain 
tensioner. 

 

 

N O T E  

To reset the tensioner, use a suitably sized flat 
blade screwdriver (1) or Tool No. J 45027 to 
wind the plunger in a clockwise direction, into 
the tensioner shaft (2). 

 

Figure 6A1 – 204 

Engine Mechanical – V6 

Page 6A1–134 

 

18 

Install the tensioner shaft (1) into the right-hand 
secondary timing chain tensioner body (2). 

 

Figure 6A1 – 205 

19 

Compress the tensioner shaft into the body and lock 
the tensioner by inserting Tool No. EN 46112 into the 
access hole in the side of the tensioner body. 

20 

Slowly release pressure on the right-hand secondary 
timing chain tensioner. The tensioner should remain 
compressed. 

 

 

Figure 6A1 – 206 

21 

Install a new right-hand secondary timing chain 
tensioner gasket (1) to the tensioner (2). 

22 

Install the right-hand secondary timing chain 
tensioner bolts (3) through the tensioner and gasket.

23 

Ensure the right-hand secondary timing chain 
tensioner mounting surface on the right-hand cylinder 
head does not have any burrs or defects that would 
affect the sealing of the new tensioner gasket. 

 

Figure 6A1 – 207 

Engine Mechanical – V6 

Page 6A1–135 

 

24 

Place the right-hand secondary timing chain tensioner 
(2) into position and loosely install the bolts (1) to the 
engine block. 

 

Figure 6A1 – 208 

25 

Verify the proper placement of the right-hand 
secondary timing chain tensioner gasket tab (1). 

26 

Tighten the right-hand secondary timing chain 
tensioner bolts (2) to the correct torque specification.

 

 

 

 

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

 

Figure 6A1 – 209 

27 

Release the right-hand timing chain tensioner (1) by 
pulling out Tool No. EN 46112 (2) and unlocking the 
tensioner plunger. 

 

CAUTION

 

If Tool No. EN 46112 (1) is not removed from 
the tensioner body (2), the plunger will 
remain in the locked position and no tension 
will be placed on the timing chain, this will 
cause damage to the engine. 

Figure 6A1 – 210 

Engine Mechanical – V6 

Page 6A1–136 

 

28 

Verify all primary and secondary timing chain timing 
mark alignments (1 to 18). 

29 

Remove Tool No. EN 46105 and EN 46105-2 from 
the left and right-hand cylinder head camshafts. 

30 

Reinstall the spark plugs. Refer to 6C1-3 Engine 
Management – V6 – Service Operations. 

31 

Reinstall the engine front cover assembly, refer to 
3.15 

Front Cover Assembly. 

Figure 6A1 – 211 

 

 

 

3.17  Oil Pump Assembly 

Remove 

N O T E  

Do not remove the left-hand bank idler sprocket. 

1 

Remove the primary timing chain and crankshaft sprocket, refer to 3.16 

Timing Chains, Tensioners, Shoes and 

Guides. 

2 

Remove the three bolts (1) attaching the oil pump (2).

3 

Remove the oil pump assembly. 

Figure 6A1 – 212