2007 ISUZU KB P190 Workshop Repair Manual

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Page 3065 of 6020

ISUZU KB P190 2007 Workshop Repair Manual Engine Mechanical – V6 Page 6A1–288
Page 6A1–288
9 Measure the main bearing and crankpin journals for
out-of-round using the following procedure:
a Using an outside micr ometer, measure

Engine Mechanical – V6 Page 6A1–288
Page 6A1–288
9 Measure the main bearing and crankpin journals for
out-of-round using the following procedure:
a Using an outside micr ometer, measure the
journal at the extreme front and rear locations
on the journal. Call these points A and B.
b Measure the journal in two new locations exactly 90 degrees from the first points. Call
these points C and D.
c Subtract A from C and B from D. The differences will indicate journal out-of-round.
d The out-of-round shoul d not exceed 0.004 mm
maximum.
e If the journals are worn beyond the specifications, the crankshaft may be ground
0.25 mm. There is only one size of oversized
crankshaft and connecting rod bearings
available for service.
10 Measure the main bearing and crankpin journals for taper using the following procedure:
a Using an outside micr ometer, measure the
journal at the extreme fr ont (A) and rear (B) of
the journal parallel to t he crankshaft centreline.
b Subtract the smallest from the largest measurement. The result will be the journal
taper.
c If the main bearing journal taper exceeds 0.004 mm, replace the crankshaft.
d If the journals are worn beyond the specifications, the crankshaft may be ground
0.25 mm. There is only one size of oversized
crankshaft and connecting rod bearings
available for service.

Figure 6A1 – 515
Reinstall
Crankshaft Bearing Installation Procedure
CAUTION
If the crankshaft bearings have been used in
a running engine, replace them with new
crankshaft bearings for reassembly.
1 Clean the crankcase crank bore with a lint-free cloth.
2 Clean all the oil from the backside of new bearing halves.
3 Install the new upper crankshaft bearings into position. The thrust beari ng (1) belongs in the number
3 journal(2). Ensure the upper bearing insert contains
the oil transfer hole and groove. Roll the bearing into
position so the lock tang engages the crank slot. The
bearing must fit flush with the upper crankcase.

Figure 6A1 – 516

BACK TO CHAPTER INDEX
TO MODEL INDEX
ISUZU KB P190 2007

Page 3066 of 6020

ISUZU KB P190 2007 Workshop Repair Manual Engine Mechanical – V6 Page 6A1–289
Page 6A1–289
4 Install the new lower crankshaft bearings (2) into
position in the main bearing caps (1). The lower
crankshaft bearings are ident ified

Page 3067 of 6020

ISUZU KB P190 2007 Workshop Repair Manual Engine Mechanical – V6 Page 6A1–290
Page 6A1–290
NOTE
Do not rotate the crankshaft.
9 Allow the assembly to sit for 2 minutes.
10 Remove the crankshaft bearing cap side bolts.
11 Remo

Page 3068 of 6020

ISUZU KB P190 2007 Workshop Repair Manual Engine Mechanical – V6 Page 6A1–291
Page 6A1–291
Crankshaft Final Installation Procedure
1 If removed, install the crankshaft sprocket drive
pin (1). Lightly tap the pin in place with a sm

Page 3069 of 6020

ISUZU KB P190 2007 Workshop Repair Manual 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

Page 3070 of 6020

ISUZU KB P190 2007 Workshop Repair Manual 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 rig

Page 3071 of 6020

ISUZU KB P190 2007 Workshop Repair Manual 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 th

Page 3072 of 6020

ISUZU KB P190 2007 Workshop Repair Manual 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 threa

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