ISUZU KB P190 2007 Workshop Repair Manual

Engine Mechanical – V6 Page 6A1–144
Page 6A1–144
CAUTION
The left-hand secondary timing chain guide
is marked with the letters LH. Ensure the
correct shoe is used when installing to the
left-hand side in this procedure and that the
letters ‘LH” are facing the front of the vehicle
when installed.
16 Ensure the left-hand secondary timing chain guide is selected and orientated correctly.

Figure 6A1 – 184
17 Install the left-hand secondary timing chain guide (1).
18 Install the secondary timing chain guide bolts (2) and tighten to the correct torque specification.




Secondary timing chain guide
attaching bolt torque spec ification ........... 20.0 – 26.0 Nm

Figure 6A1 – 185

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ISUZU KB P190 2007

Engine Mechanical – V6 Page 6A1–145
Page 6A1–145
CAUTION
The left-hand secondary timing chain shoe
(2) is marked with the letters LH on the back
face of the timing chain shoe. Ensure the
correct shoe is used when installing to the
left-hand side.
19 Ensure the left-hand secondary timing chain shoe is selected and orientated correctly.

Figure 6A1 – 186
20 Install the left-hand secondary timing chain shoe (1).

Figure 6A1 – 187
21 Install the left-hand secondary timing chain shoe bolt (1) and tighten to the co rrect torque specification.

NOTE
Ensure secondary timing chain shoe is clear of
the left-hand secondary timing chain tensioner
mounting pad, before ti ghtening the attaching
bolt.
Secondary timing chain shoe attaching
bolt torque specificat ion .......................... 20.0 – 26.0 Nm


Figure 6A1 – 188

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ISUZU KB P190 2007

Engine Mechanical – V6 Page 6A1–146
Page 6A1–146
22 Ensure the left-hand secondary timing chain tensioner
is selected and orientated correctly.


Figure 6A1 – 189
23 Reset the left-hand secondary 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 – 190
24 Install the tensioner shaft (1) into the left-hand secondary timing chain tensioner body (2).

Figure 6A1 – 191

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ISUZU KB P190 2007

Engine Mechanical – V6 Page 6A1–147
Page 6A1–147
CAUTION
If Tool No. EN 46112 (1) is not removed from
the tensioner body (2), the tensioner
shaft (3) will remain in the locked position
and no tension will be placed on the timing
chain, this will cause damage to the engine.
25 Compress the tensioner shaft into the body and lock the left-hand secondary timing chain tensioner by
inserting Tool No. EN 46112 into the access hole in
the side of the tensioner body.
26 Slowly release pressure on the left-hand secondary timing chain tensioner. The tensioner should remain
compressed.

Figure 6A1 – 192
27 Install a new left-hand secondary timing chain tensioner gasket (1) to the tensioner (2).
28 Install the left-hand secondar y timing chain tensioner
bolts through tensioner and gasket.
29 Ensure the left-hand secondary timing chain tensioner mounting surface on the left-hand cylinder head does
not have any burrs or defects that would affect the
sealing of the new gasket.

Figure 6A1 – 193
30 Place the left-hand secondar y timing chain tensioner
(2) into position and loosely install the bolts (1) to the
cylinder head.

Figure 6A1 – 194

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ISUZU KB P190 2007

Engine Mechanical – V6 Page 6A1–148
Page 6A1–148
31 Verify the proper placement of the left-hand
secondary timing chain tensioner gasket tab (1).
32 Tighten the left-hand secondary timing chain tensioner bolts (2) to the co rrect torque specification.




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


Figure 6A1 – 195
33 Release the left-hand secondary timing chain tensioner (1) by pulling out Tools No. EN 46112 (2)
and unlocking the tensioner shaft.

Figure 6A1 – 196
34 Verify the left-hand secondary timing chain timing mark alignments (1 to 6).


Figure 6A1 – 197


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ISUZU KB P190 2007

Engine Mechanical – V6 Page 6A1–149
Page 6A1–149
Primary Timing Chain Components – Excluding MY06 Update
1 If previously removed, install the left-hand secondary
timing chain components, refer to Left-hand
Secondary Timing Chain Components in this Section.
CAUTION
The right-hand camshaft intermediate
sprocket (2) is marked with the letters RB
and ‘FRONT’, and the left-hand sprocket (1)
is marked with the le tters LB and 'FRONT'
Ensure the correct sprocket is used and the
FRONT text is facing forwards when
installed.
2 Ensure the right-hand camshaft intermediate sprocket (2) is selected and orientated correctly.


Figure 6A1 – 198
3 Install the right-hand camshaft intermediate sprocket (2).
4 Install the sprocket bolt (1) and tighten to the correct torque specification.


Camshaft intermediate sprocket
attaching bolt torque spec ification ........... 58.0 – 72.0 Nm


Figure 6A1 – 199
5 Ensure that the crankshaft sprocket timing mark (1) is aligned with the indexing mark (2) on the oil pump
housing.


Figure 6A1 – 200

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ISUZU KB P190 2007

Engine Mechanical – V6 Page 6A1–150
Page 6A1–150
6 Install the primary timing chain (1).


Figure 6A1 – 201
7 Wrap the primary timi ng chain around the large
sprockets of each camsha ft intermediate sprocket
and the crankshaft sprocket aligning the bright plated
chain links as follows:


Figure 6A1 – 202
8 The left-hand camshaft intermediate sprocket timing mark (1) will align with a bright plated primary timing
chain link (2).


Figure 6A1 – 203

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ISUZU KB P190 2007

Engine Mechanical – V6 Page 6A1–151
Page 6A1–151
9 The right-hand camshaft intermediate sprocket timing
mark (1) will align with a bright plated primary timing
chain link (2).


Figure 6A1 – 204
10 The crankshaft sprocket timing mark (1) will align with a bright plated timing chain link (2).


Figure 6A1 – 205
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 – 206

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ISUZU KB P190 2007

Engine Mechanical – V6 Page 6A1–152
Page 6A1–152
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 – 207
12 Ensure the primary timing chain upper guide is selected and orientated correctly.


Figure 6A1 – 208
13 Install the primary ti ming 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 spec ification ........... 20.0 – 26.0 Nm


Figure 6A1 – 209

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ISUZU KB P190 2007

Engine Mechanical – V6 Page 6A1–153
Page 6A1–153
15 Ensure that the primary timing chain tensioner is
being installed.

Figure 6A1 – 210
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 – 211
17 Install the tensioner shoe assembly (1) into the primary timing chain tensioner body (2).


Figure 6A1 – 212

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ISUZU KB P190 2007