engine ISUZU KB P190 2007 Workshop Repair Manual

Engine Mechanical – V6 Page 6A1–138
Page 6A1–138
30 Place the left-hand secondary timing chain tensioner
(2) into position and loosely install the bolts (1) to the
cylinder head.

Figure 6A1 – 167
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 – 168
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 – 169

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ISUZU KB P190 2007

Engine Mechanical – V6 Page 6A1–139
Page 6A1–139
34 Verify the left-hand secondary timing chain timing
mark alignments (1 to 6).


Figure 6A1 – 170
Left-hand Secondary Timing Chain Components – MY06 Update
1 Install the crankshaft sprocket (1) onto the crankshaft (2) by aligning the keyway to the key on
the crankshaft.
2 Slide the crankshaft sprocket on the crankshaft until the crankshaft sprocket contacts the step in the
crankshaft.


Figure 6A1 – 171
NOTE
Ensure that the crankshaft sprocket is installed
with the timing mark (1) visible.

Figure 6A1 – 172

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ISUZU KB P190 2007

Engine Mechanical – V6 Page 6A1–140
Page 6A1–140
CAUTION
In order to install Tool No. EN 46105 onto the
camshafts, rotate the camshafts in an anti-
clockwise direction. There should be no
need to rotate the camshaft more than 45
degrees.

Figure 6A1 – 173
3 Install Tool No. EN 46105-1 (1) onto the rear of the
left-hand cylinder head camshafts (2).
CAUTION
All camshafts must be locked in place before
installation of any timing chains.
4 Ensure that Tool No. EN 46105 is fully seated onto the camshafts.

Figure 6A1 – 174
5 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 – 175

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ISUZU KB P190 2007

Engine Mechanical – V6 Page 6A1–141
Page 6A1–141
6 Install the left-hand secondary timing chain (1)
aligning the chain in the following manner:


Figure 6A1 – 176
7 Wrap the secondary timing chain around both left- hand camshaft drive sprockets.
8 Ensure there are two bright links located on top of each of the camshaft sprockets.


Figure 6A1 – 177

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ISUZU KB P190 2007

Engine Mechanical – V6 Page 6A1–142
Page 6A1–142
CAUTION
When aligning the left-hand secondary timing
chain to the camshaft sprockets, ensure the
circular timing marks on the sprocket are
used, NOT the triangular mark.
9 Align the bright plated timing chain link (1) with the left-hand exhaust camshaft position sprocket
alignment circle mark (2).


Figure 6A1 – 178
10 Align the bright plated timing chain link (1) with the intake camshaft position sprocket alignment circle
mark (2).


Figure 6A1 – 179
CAUTION
The left-hand camshaft intermediate
sprocket (1) is marked with the letters LB
and ‘FRONT’, and the right-hand sprocket (2)
is marked with the letters RB and 'FRONT'
Ensure the correct sprocket is used and the
'FRONT' text is facing forwards when
installed.
11 Ensure the left-hand camshaft intermediate sprocket is selected and orientated correctly.

Figure 6A1 – 180

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ISUZU KB P190 2007

Engine Mechanical – V6 Page 6A1–143
Page 6A1–143
12 Place the left-hand secondary timing chain around the
left-hand camshaft intermediate inner sprocket, with
the bright plated timing chain link (1) aligned with the
access hole (2) in the outer sprocket.

Figure 6A1 – 181
13 Install the left-hand camshaft intermediate sprocket to the cylinder block.
14 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 – 182
15 Verify the left-hand secondary timing chain timing mark alignments (1 to 6)

Figure 6A1 – 183

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ISUZU KB P190 2007

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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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