engine ISUZU KB P190 2007 Workshop Repair Manual

Engine Mechanical – V6 Page 6A1–136

28 Verify all primary and secondary timing chain timing
mark alignments (1 to 18).
29 Remove Tool No. EN 46105 and EN 46105-2 from the left and right-hand cylinder head camshafts.
30 Reinstall the spark plugs. Refer to 6C1-3 Engine Management – V6 – Service Operations.
31 Reinstall the engine front cover assembly, refer to 3.15 Front Cover Assembly.
Figure 6A1 – 211


3.17 Oil Pump Assembly
Remove
NOTE
Do not remove the left-hand bank idler sprocket.
1 Remove the primary timing chain and crankshaft sprocket, refer to 3.16 Timing Chains, Tensioners, Shoes and Guides.
2 Remove the three bolts (1) attaching the oil pump (2).
3 Remove the oil pump assembly.
Figure 6A1 – 212

BACK TO CHAPTER INDEX
TO MODEL INDEX
ISUZU KB P190 2007

Engine Mechanical – V6 Page 6A1–137

Disassemble
CAUTION
There are no serviceable components within
the oil pump. Disassemble the pump only to
diagnose an oil related concern. A
disassembled oil pump must not be reused: it
must be replaced.
1 Remove the two bolts (1) attaching the primary timing chain lower guide (2) and remove the guide.

CAUTION
The primary timing chain lower guide is not
serviced separately and is part of the oil
pump assembly. If it is removed from the
pump assembly, the guide and the pump
must be replaced.
Figure 6A1 – 213
2 Remove the seven bolts (2) attaching the oil pump cover to the oil pump housing (1) and remove the
cover from the housing.

Figure 6A1 – 214

BACK TO CHAPTER INDEX
TO MODEL INDEX
ISUZU KB P190 2007

Engine Mechanical – V6 Page 6A1–138

3 Remove the inner gerotor ring (1).
4 Remove the outer gerotor ring (2).

Figure 6A1 – 215
5 Remove the clip (1), retaining the oil relief valve cap (2).
6 Remove the cap, spring (3) and plunger (4) from the oil pump housing.

Figure 6A1 – 216
Clean
1 Clean the oil pump components with non-corrosive solvent.

Safety glasses must be worn when using
compressed air.
2 Dry the oil pump components with compressed air.

BACK TO CHAPTER INDEX
TO MODEL INDEX
ISUZU KB P190 2007

Engine Mechanical – V6 Page 6A1–139

Inspect
1 Inspect the oil pump housing for damage.
Figure 6A1 – 217
2 Inspect the oil pump cover for damage.

Figure 6A1 – 218
3 Inspect the inner drive gear for damage. If inner surface damage is found, ensure the crankshaft is
also inspected.

Figure 6A1 – 219

BACK TO CHAPTER INDEX
TO MODEL INDEX
ISUZU KB P190 2007

Engine Mechanical – V6 Page 6A1–140

4 Inspect the outer driven gear for damage.

Figure 6A1 – 220
5 Inspect the oil pump relief valve components for debris or damage.

Figure 6A1 – 221
6 Inspect the primary camshaft chain lower guide for damage. If replacement of the primary camshaft chain
lower guide is required, replace the entire oil pump
assembly as the primary camshaft chain lower guide
is not serviceable separately.
7 If debris or damage is present within the oil pump, further inspection of all of the engine components is
required.

Figure 6A1 – 222

BACK TO CHAPTER INDEX
TO MODEL INDEX
ISUZU KB P190 2007

Engine Mechanical – V6 Page 6A1–141

Reassemble
CAUTION
As there are no serviceable components
within the oil pump, a disassembled oil pump
must be replaced.
Reinstall
1 Align the oil pump gerotor with the crankshaft flats and fit the oil pump assembly to the engine block.
2 Align the pump body (2) with the mounting holes in the cylinder block.
3 Install the oil pump bolt (1), three places, and tighten to the correct torque specification.
4 Install the primary timing chain, refer to 3.16 Timing Chains, Tensioners, Shoes and Guides.


Oil pump attaching bolt torque
specification ............................................20.0 – 26.0 Nm

Figure 6A1 – 223
3.18 Camshaft Sprocket
CAUTION
Setting the camshaft timing is required
whenever the camshaft drive system is
disturbed to ensure the relationship between
any chain and sprocket is not lost. Even when
only one sprocket is involved, multiple
crankshaft rotations will not produce
conditions where correct timing can be
confirmed.
If required, follow the Left-hand Secondary
Camshaft Chain Components reinstallation
procedure to reset the camshaft timing.
Remove
Right-hand Side
1 Remove the right-hand camshaft cover, refer to 3.12 Camshaft Cover.
2 Remove the camshaft position sensors, refer to 6C1-3 Engine Management – Service Operations.
3 Remove the camshaft position actuator solenoids, refer to 6C1-3 Engine Management – V6 – Service Operations.
4 Remove the crankshaft balancer assembly, refer to 3.13 Crankshaft Balancer Assembly.

BACK TO CHAPTER INDEX
TO MODEL INDEX
ISUZU KB P190 2007

Engine Mechanical – V6 Page 6A1–142

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 – 224
7 Install Tool No. EN-46105 – 1 (1) onto the rear of the right-hand cylinder head (3) camshafts (2).
Figure 6A1 – 225
8 Loosen the camshaft sprocket bolt.

NOTE
• Use an open-end spanner (1) at the
camshaft hex (2) to prevent camshaft/engine
rotation.
• Do not remove the camshaft sprocket bolt at
this time.
• If you have already removed the camshaft
timing chain proceed to step 12


Figure 6A1 – 226

BACK TO CHAPTER INDEX
TO MODEL INDEX
ISUZU KB P190 2007

Engine Mechanical – V6 Page 6A1–143

9 Install Tool No. EN-46108 (1 and 2) to retain the
timing chain (3 and 4).
10 Firmly tighten the wing nuts of Tool No. EN-46108.
11 Mark the timing chain and the respective location on both camshaft sprocket.

NOTE
Ensure the camshaft timing chain and the
camshaft sprocket are marked for correct
reassembly.
CAUTION
Ensure the tips of Tool No.
EN-46108 are fully engaged into the timing
chain and the wing nuts are tight and the
timing chain is taught.

Figure 6A1 – 227
12 Remove the bolt (1) attaching the right-hand exhaust camshaft sprocket (2) and remove the sprocket.

Figure 6A1 – 228
13 Remove the bolt (1) attaching right-hand intake camshaft sprocket (2) and remove the sprocket.
Figure 6A1 – 229

BACK TO CHAPTER INDEX
TO MODEL INDEX
ISUZU KB P190 2007

Engine Mechanical – V6 Page 6A1–144

Left-hand Side
1 Remove the left-hand camshaft cover, refer to 3.12 Camshaft Cover.
2 Remove the camshaft position sensors, refer to 6C1-3 Engine Management – V6 – Service Operations.
3 Remove the camshaft position actuator solenoids, refer to 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 – 230
7 Install Tool No. EN-46105 – 1 (1) onto the rear of the left-hand cylinder head camshafts (2).

Figure 6A1 – 231

BACK TO CHAPTER INDEX
TO MODEL INDEX
ISUZU KB P190 2007

Engine Mechanical – V6 Page 6A1–145

8 Loosen the camshaft sprocket bolt.

NOTE
• Use an open-end wrench (1) at the camshaft
hex (2) to prevent camshaft/engine rotation.
• Do not remove the camshaft sprocket bolt at
this time.
• If the camshaft timing chain has already
been removed proceed to step 12.


Figure 6A1 – 232
9 Install Tool No. EN-46108 (1 and 2) to retain the timing chain (3 and 4).
10 Firmly tighten the wing nuts of Tool No. EN-46108.
CAUTION
Ensure the tips of Tool No. EN-46108 are
fully engaged into the timing chain and the
wing nuts are tight and the timing chain is
taught.
11 Mark the timing chain and the respective location on both camshaft sprocket.

NOTE
Ensure the camshaft timing chain and the
camshaft sprocket are marked for correct
reassembly.

Figure 6A1 – 233
12 Remove the bolt (1) attaching the left-hand exhaust camshaft sprocket (2) and remove the sprocket.
Figure 6A1 – 234

BACK TO CHAPTER INDEX
TO MODEL INDEX
ISUZU KB P190 2007