2007 ISUZU KB P190 Workshop Repair Manual

USB fuel cap ESP winter tyres maintenance schedule air condition

Load previous 8 pages

Page 2705 of 6020

ISUZU KB P190 2007 Workshop Repair Manual Engine Mechanical – V6 Page 6A1–226

Crankshaft and Main Bearing Visual Inspection
1 Perform the following visual inspections:
• Inspect the crankshaft balancer bolt hole (1) for
thread d

Page 2706 of 6020

ISUZU KB P190 2007 Workshop Repair Manual Engine Mechanical – V6 Page 6A1–227

Crankshaft Main Bearing Inspection
CAUTION
All connecting rod and main journal bearings
that have been used in a running engine must
be replaced. Never

Page 2707 of 6020

ISUZU KB P190 2007 Workshop Repair Manual Engine Mechanical – V6 Page 6A1–228

4 Inspect for incorrect seating indicated by bright,
polished sections (1).
Figure 6A1 – 419
Crankshaft Measurement
1 Using a suitable fixture (1), s

Page 2708 of 6020

ISUZU KB P190 2007 Workshop Repair Manual Engine Mechanical – V6 Page 6A1–229

3 Measure the crankshaft thrust wall width (1) for wear
using an inside micrometer and compare with the
engine specifications, refer to 5 Specifications

Page 2709 of 6020

ISUZU KB P190 2007 Workshop Repair Manual Engine Mechanical – V6 Page 6A1–230

9 Measure the main bearing and crankpin journals for
out-of-round using the following procedure:
a Using an outside micrometer, measure the journal at

Engine Mechanical – V6 Page 6A1–230

9 Measure the main bearing and crankpin journals for
out-of-round using the following procedure:
a Using an outside micrometer, 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 should 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 micrometer, measure the journal at the extreme front (A) and rear (B) of
the journal parallel to the 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 – 425

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 bearing (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 – 426

BACK TO CHAPTER INDEX
TO MODEL INDEX
ISUZU KB P190 2007

Page 2710 of 6020

ISUZU KB P190 2007 Workshop Repair Manual Engine Mechanical – V6 Page 6A1–231

4 Install the new lower crankshaft bearings (2) into
position in the main bearing caps (1). The lower
crankshaft bearings are identified by no grooves or

Page 2711 of 6020

ISUZU KB P190 2007 Workshop Repair Manual Engine Mechanical – V6 Page 6A1–232

NOTE
Do not rotate the crankshaft.
9 Allow the assembly to sit for 2 minutes.
10 Remove the crankshaft bearing cap side bolts.
11 Remove the cranksh

Page 2712 of 6020

ISUZU KB P190 2007 Workshop Repair Manual Engine Mechanical – V6 Page 6A1–233

Crankshaft Final Installation Procedure
1 If removed, install the crankshaft sprocket drive
pin (1). Lightly tap the pin in place with a small soft
face

Load next 8 pages

Page: < prev 1-10 ... 2673-2680 2681-2688 2689-2696 2697-2704 2705-2712 2713-2720 2721-2728 2729-2736 2737-2744 ... 6024 next >

fuse box diagram towing capacity adblue reset child restraint automatic transmission drain bolt