Isuzu KB P190. Manual - part 743

Engine Mechanical – V6 

Page 6A1–195 

 

Page 6A1–195 

11 

Ensure that the feet (2) of the Tool No. EN 48313 are 
facing the front of the engine. 

CAUTION

 

DO NOT tighten the Tool No. EN 48313 at 
this stage. 

12 

Partially expand the legs (1) on the Tool No. EN 
48313 by turning the T-shaped handle clockwise. 

CAUTION

 

Ensure the feet (2) of the Tool No. EN 48313 
are correctly engaged into one of the link 
pockets to prevent the chain from slipping 
during tightening. 

13 

Continue expanding the Tool No. EN 48313 until the 
feet (2) contact the timing chain. 

 

Figure 6A1 – 316 

14 

Hand tighten the Tool No. EN 48313. DO NOT allow the body of the Tool No. EN 48313 to rotate when tightening 
the T-handle. 

15 

Use an open-end spanner on the hex cast into both the right intake and exhaust camshafts and rotate the 
camshafts towards each other in order to create slack in the chain between the actuators. 

16 

The Tool No. EN 48313 is now correctly installed to hold the timing chain in position. 

N O T E  

Ensure the camshaft timing chain and the 
camshaft position actuators are marked for 
correct reassembly. 

17 

Mark the timing chain and the respective location on both camshaft position actuators. 

18 

Remove the bolt (1) attaching the right-hand exhaust 
camshaft sprocket (2) and remove the sprocket. 

 

 

Figure 6A1 – 317 

Engine Mechanical – V6 

Page 6A1–196 

 

Page 6A1–196 

19 

Remove the bolt (1) attaching right-hand intake 
camshaft sprocket (2) and remove the sprocket. 

 

Figure 6A1 – 318 

Left-hand Side 

1 

Remove the left-hand camshaft cover, refer to 

3.12  Camshaft Cover

. 

2 

Remove the camshaft position sensors, refer to 

Section 6C1-3 Engine Management – V6 – Service Operations

. 

3 

Remove the camshaft position actuator solenoids, refer to 

Section 6C1-3 Engine Management – V6 – Service 

Operations

. 

4 

Remove the crankshaft balancer assembly, refer to 

3.13  Crankshaft Balancer Assembly

. 

5 

Install the crankshaft rotation socket Tool No.  
EN-46111 onto the crankshaft. 

6 

Rotate the crankshaft until the camshafts are in a 
neutral low tension position. The camshaft flats will be 
parallel with the camshaft cover rail (1).

 

 

 

Figure 6A1 – 319

 

Engine Mechanical – V6 

Page 6A1–197 

 

Page 6A1–197 

7 

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

 

 

Figure 6A1 – 320 

N O T E  

Use an open-end wrench (1) at the camshaft 
hex (2) to prevent camshaft/engine rotation. 

N O T E  

Do not remove the camshaft sprocket bolt (3) at 
this time. 

8 

Loosen the camshaft sprocket bolt (3). 

 

N O T E  

If the camshaft timing chain has already been 
removed proceed to Step 12. 

 

 

 

Figure 6A1 – 321 

N O T E  

The front engine cover is removed in the 
following graphic for illustration purposes and is 
not required to be removed to perform this 
procedure. 

9 

Loosen the timing chain retention Tool No. EN 48313 
so that the legs are retracted. 

10 

Insert the Tool No. EN 48313 between the camshaft 
actuators, rearward of the timing chain until the top 
line that is scribed into the body of the tool (1) is 
adjacent to the top surface of the cylinder head (2). 
This is the approximate installed position. 

 

Figure 6A1 – 322 

Engine Mechanical – V6 

Page 6A1–198 

 

Page 6A1–198 

11 

Ensure that the feet (2) of the Tool No. EN 48313 are 
facing the front of the engine. 

CAUTION

 

DO NOT tighten the Tool No. EN 48313 at 
this stage. 

12 

Partially expand the legs (1) on the Tool No. EN 
48313 by turning the T-shaped handle clockwise. 

CAUTION

 

Ensure the feet (2) of the Tool No. EN 48313 
are correctly engaged into one of the link 
pockets to prevent the chain from slipping 
during tightening. 

 

Figure 6A1 – 323 

13 

Continue expanding the Tool No. EN 48313 until the feet (2) contact the timing chain. 

14 

Hand tighten the Tool No. EN 48313. DO NOT allow the body of the Tool No. EN 48313 to rotate when tightening 
the T-handle. 

15 

Use an open-end spanner on the hex cast into both the left intake and exhaust camshafts and rotate the camshafts 
towards each other in order create slack in the chain between the actuators. 

16 

The Tool No. EN 48313 is now correctly installed to hold the timing chain in position. 

N O T E  

Ensure the camshaft timing chain and the 
camshaft position actuators are marked for 
correct reassembly. 

17 

Mark the timing chain and the respective location on both camshaft position actuators. 

18 

Remove the bolt (1) attaching the left-hand exhaust 
camshaft sprocket (2) and remove the sprocket. 

 

Figure 6A1 – 324