ISUZU KB P190 2007 Workshop Repair Manual

Engine Mechanical – V6 Page 6A1–122

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

Figure 6A1 – 170
6 Install the primary timing chain (1).

Figure 6A1 – 171
7 W rap the primary timing chain around the large sprockets of each camshaft intermediate driveshaft
sprocket and the crankshaft sprocket aligning the
bright plated chain links as follows:

Figure 6A1 – 172

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Engine Mechanical – V6 Page 6A1–123

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

Figure 6A1 – 173
9 The right-hand camshaft intermediate driveshaft sprocket timing mark (1) will align with a bright plated
primary timing chain link (2).

Figure 6A1 – 174
10 The crankshaft sprocket timing mark (1) will align with a bright plated timing chain link (2).

Figure 6A1 – 175

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Engine Mechanical – V6 Page 6A1–124

11 Ensure all the timing marks (1, 2 and 3) are properly
aligned with the bright plated timing chain links (4, 5
and 6).

Figure 6A1 – 176
NOTE
Do not remove the primary timing chain lower
guide (1). The primary timing chain lower guide
is not serviced separately. If the primary timing
chain lower guide must be replaced, the oil
pump assembly (2) must be replaced.

Figure 6A1 – 177
12 Ensure the primary timing chain upper guide is selected and orientated correctly.

Figure 6A1 – 178

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ISUZU KB P190 2007

Engine Mechanical – V6 Page 6A1–125

13 Install the primary timing chain upper guide (1).
14 Install the primary timing chain upper guide bolts (2) and tighten to the correct torque specification.



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

Figure 6A1 – 179
15 Ensure that the primary timing chain tensioner is being installed.
Figure 6A1 – 180
16 Reset the primary timing chain tensioner.




NOTE
To reset the tensioner, use a suitably sized flat
blade screwdriver (1) or Tool No. J 45027 (4) to
wind the plunger in a clockwise direction, into
the tensioner shaft (2).

Figure 6A1 – 181

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Engine Mechanical – V6 Page 6A1–126

17 Install the tensioner shoe assembly (1) into the
primary timing chain tensioner body (2).

Figure 6A1 – 182
18 Compress the shoe assembly into the body (2) and lock the primary timing chain tensioner by inserting
Tool No. EN 46112 into the access hole in the side of
the body.
CAUTION
If Tool No. EN 46112 (1) is not inserted into
the tensioner body, the plunger will remain
in the locked position and no tension will be
placed on the timing chain.
19 Slowly release pressure on the primary timing chain tensioner. The primary timing chain tensioner should
remain compressed.


Figure 6A1 – 183
20 Install a new primary timing chain tensioner gasket (1) to the tensioner (2).
21 Install the primary timing chain tensioner bolts (3) through tensioner and gasket.
22 Ensure the primary timing chain tensioner mounting surface on the engine block does not have any burrs
or defects that would affect the sealing of the new
gasket.

Figure 6A1 – 184

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Engine Mechanical – V6 Page 6A1–127

23 Place the primary timing chain tensioner (2) into
position and loosely install the bolts (1) to the engine
block.

Figure 6A1 – 185
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 – 186
26 Release the primary timing chain tensioner (1) by pulling out Tool No. EN 46112 (2) and unlocking the
tensioner shaft.

Figure 6A1 – 187


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Engine Mechanical – V6 Page 6A1–128


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

Figure 6A1 – 188
28 Remove Tool No. EN 46105 from the left-hand and right-hand cylinder head camshafts.
Right-hand Secondary Timing Chain Components
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 – 189

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Engine Mechanical – V6 Page 6A1–129

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 – 190
3 Install Tool No. EN 46105-1 (1) onto the rear of the right-hand cylinder head camshafts (2).
Figure 6A1 – 191
4 Install Tool No. EN 46105-2 (1) onto the rear of the left-hand cylinder head camshafts (2).
Figure 6A1 – 192


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Engine Mechanical – V6 Page 6A1–130

5 Install the right-hand secondary timing chain (1) onto
the camshaft actuators (2) and the right hand
camshaft intermediate driveshaft sprocket (3) aligning
the chain in the following manner:
Figure 6A1 – 193
6 Place the secondary timing chain around the right- hand camshaft intermediate driveshaft outer sprocket,
aligning the bright plated timing chain link (1) with the
alignment access hole (2) in the inner sprocket.

Figure 6A1 – 194
7 W rap the secondary timing chain around both right- hand actuator drive sprockets.
Figure 6A1 – 195


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Engine Mechanical – V6 Page 6A1–131




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



CAUTION
Ensure that when aligning the right-hand
secondary timing chain to the right-hand
camshaft actuator sprockets, that the
triangular timing marks (1) on the sprocket
are used, NOT the circular mark.
Figure 6A1 – 196
9 Align the bright plated timing chain link (1) with the intake actuator sprocket alignment triangle mark (2).

Figure 6A1 – 197
10 Ensure that the right-hand secondary timing chain guide is selected and orientated correctly.


CAUTION
Ensure that the right-hand secondary timing
chain guide is used when installing to the
right-hand side in this procedure.
Figure 6A1 – 198

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