engine ISUZU KB P190 2007 Workshop Repair Manual

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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Engine Mechanical – V6 Page 6A1–132

11 Position the chain guide (2).
12 Install the secondary timing chain guide bolts (1) and tighten to the correct torque specification.




Secondary timing chain guide
attaching bolt torque specification ...........20.0 – 26.0 Nm
Figure 6A1 – 199
13 Ensure the right-hand secondary timing chain shoe is selected and orientated correctly.

CAUTION
The right-hand secondary camshaft drive
shoe is marked with the letters ‘RH’. Ensure
that the right-hand drive shoe is used when
installing to the right-hand side in this
procedure and that the letters ‘RH” are
facing the front of the vehicle when installed.
Figure 6A1 – 200
14 Position the right-hand secondary timing chain shoe (1).

Figure 6A1 – 201

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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.


NOTE
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

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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

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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

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