2007 ISUZU KB P190 engine oil

Engine Mechanical – V6 Page 6A1–292
Page 6A1–292
8 Loosely install new short / inner side main cap
bolts (4).
CAUTION
• The short / inner side main cap bolts
originally have a sealant on the flange of
the bolt head. New bolts must be used. If
new bolts are not used, oil can leak from
the crankcase past the bolts.
• The long / outer side main cap bolts
originally have a sealant on the flange of
the bolt head. New bolts must be used. If
new bolts are not used, oil can leak from
the crankcase past the bolts.
9 Loosely install the new long / outer side main cap bolts (3).
10 Tighten the main caps bolts to the correct torque specification, and in the following sequence.
„ Crankshaft main bearing cap inboard
attaching bolt torque specification:
Stage 1 .........................20.0 Nm
Stage 2................................. 80°
„ Crankshaft main bearing cap outboard
attaching bolt torque specification:
Stage 1 .........................15.0 Nm
Stage 2............................... 110°
„ Crankshaft main bearing cap side
attaching bolt torque specification:
Stage 1 .........................30.0 Nm
Stage 2................................. 60°

Figure 6A1 – 525
11 Ensure the crankshaft turns without binding or noise.
12 Install the remaining components in the reverse order to removal, refer to the appropriate Section.

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ISUZU KB P190 2007

Engine Mechanical – V6 Page 6A1–293
Page 6A1–293
4.7 Cylinder Block
Disassemble
1 Remove oil jet bolt (1) attaching the oil jet (2), three
places.

Figure 6A1 – 526
2 Remove the right-hand front oil pan rail oil gallery expansion plug (1).


Figure 6A1 – 527
3 Remove the cylinder block-to-oil pan alignment dowels (1).

Figure 6A1 – 528

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ISUZU KB P190 2007

Engine Mechanical – V6 Page 6A1–294
Page 6A1–294
4 Remove the right-hand side M14 oil gallery threaded
plug (1).


Figure 6A1 – 529
5 Remove the right-hand side M14 coolant drain threaded plug (1).


Figure 6A1 – 530
6 Remove the rear M14 oil gallery threaded plug (1).


Figure 6A1 – 531

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Engine Mechanical – V6 Page 6A1–295
Page 6A1–295
7 Remove the left-hand side M14 coolant drain
threaded plug (1).


Figure 6A1 – 532
8 Remove the left-hand side M20 oil gallery threaded plug (1).


Figure 6A1 – 533
CAUTION
Do not force coolant expansion plugs
downwards during removal procedure as the
cylinder block will be damaged.
9 Remove the coolant expansion plugs (1).



Figure 6A1 – 534

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ISUZU KB P190 2007

Engine Mechanical – V6 Page 6A1–296
Page 6A1–296
10 Remove the cylinder block-to-transmission alignment
dowels (1).


Figure 6A1 – 535
11 Remove the front oil gallery expansion plug (1).


Figure 6A1 – 536
12 Remove the cylinder block-to-cylinder head alignment dowels (1).


Figure 6A1 – 537

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ISUZU KB P190 2007

Engine Mechanical – V6 Page 6A1–297
Page 6A1–297
Clean
1 Remove all thread sealant, gasket material or sealant using a commercially available plastic or wood scraper.
2 Clean all the following areas with a suitable solvent:
• sealing surfaces,
• cooling passages,
• oil passages, and
• bearing journals.
3 Clean all threaded and through holes with a suitable solvent.

Safety glasses must be worn when using
compressed air.
4 Dry the engine block with compressed air.
Inspect
Visual Inspection
NOTE
The following procedure assumes the engine has
been disassembled and cleaned, as described
above.
1 Inspect the crankshaft bearing journals for damage or spun bearings. The crankshaft bearing journals are not
repairable and if damage is f ound, the cylinder block assembly must be replaced.
2 Inspect the primary camshaft chain t ensioner mounting surface on the engine block for burrs or any defects that
would affect the sealing of the new primary camshaft chain tensioner gasket.
3 Inspect all sealing and mating surfaces for damage, repair or replace the cylinder block assembly if required.
4 Inspect all threaded and through holes for damage or excessive debris.
5 Inspect all bolts for damage, if damaged replace with new bolts only.
6 Inspect the cylinder walls for cracks or damage. The cyli nder sleeves are not serviced separately, if the cylinders
are damaged the cylinder block assembly must be replaced.
7 Inspect the engine block for cracks. Do not repair any cra cks. If cracks are found, the cylinder block assembly must
be replaced. Repair any damaged threaded holes, refer to 4.9 Thread Repair Specifications.
Measuring Cylinder Bore Diameter
1 Measure the cylinder bore diameter 37 mm from the
deck face (1) using a commercially available bore
gauge or Tool No. J-8087 (2).
2 Record the results and compare with the dimensions listed in the specifications, refer to 5 Specifications.

NOTE
If the cylinder diameter exceeds the
specifications, the cylinder block may be
oversized to 0.25 mm. Only one size of
oversized pistons and rings are available for
service. If the cylinder bore diameter exceeds
specification by mo re than 0.25 mm, the
cylinder block must be replaced.

Figure 6A1 – 538

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ISUZU KB P190 2007

Engine Mechanical – V6 Page 6A1–299
Page 6A1–299
Reassemble
1 Install the cylinder block-to-cylinder head alignment
dowels (1).

Figure 6A1 – 540
2 Install a new front oil gallery expansion plug (1).

Figure 6A1 – 541
3 Install the cylinder blo ck-to-transmission alignment
dowels (1).

Figure 6A1 – 542

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Engine Mechanical – V6 Page 6A1–300
Page 6A1–300
4 Place RTV sealant on new coolant expansion plugs
(1) and install the new coolant expansion plugs.

Figure 6A1 – 543
5 Install the left-hand side M20 oil gallery threaded plug (1) and tighten to the correct torque specification.




Left-hand side M20 cylinder block
oil gallery threaded plug
torque specificatio n ................................. 27. 0 – 35.0 Nm

Figure 6A1 – 544
6 Install the left-hand side M14 coolant drain threaded
plug (1) and tighten to the co rrect torque specification.




Left-hand side M14 cylinder block
coolant drain threaded plug
torque specificatio n ................................. 27. 0 – 35.0 Nm

Figure 6A1 – 545

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ISUZU KB P190 2007