2007 ISUZU KB P190 Workshop Repair Manual

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Page 3041 of 6020

ISUZU KB P190 2007 Workshop Repair Manual Engine Mechanical – V6 Page 6A1–264
Page 6A1–264
3 Install the crankshaft rear oil seal housing (1) to the
cylinder block (2).
NOTE
• Do not allow any engine oil onto the cylinder
blo

Page 3042 of 6020

ISUZU KB P190 2007 Workshop Repair Manual Engine Mechanical – V6 Page 6A1–265
Page 6A1–265
4.5 Pistons, Pins, Rings, Connecting Rods
and Big-end Bearings
Remove
1 Remove the engine assembly, refer to 4.1 Engine .
2 Remove bo

Engine Mechanical – V6 Page 6A1–265
Page 6A1–265
4.5 Pistons, Pins, Rings, Connecting Rods
and Big-end Bearings
Remove
1 Remove the engine assembly, refer to 4.1 Engine .
2 Remove both cylinder head assemblies, refer to 3.22 Cylinder Head Assembly.
3 Remove the oil pan assembly, refer to 4.2 Oil Pan and Oil Pump Suction Pipe Assembly .
4 Mark the top of the piston being remo ved to identify its specific bore.
5 Install Tool No. EN-46111 (1) onto the crankshaft (2).
6 Rotate the crankshaft until the piston being removed is at the bottom of its stroke; bottom dead centre
(BDC).

Figure 6A1 – 464
CAUTION
If the connecting rod bearings have been
used in a running engine, they must be
replaced with new connecting rod bearings
for reassembly.
7 Before removing the connecting rods, check the connec ting rod side clearance using the following procedure:
a Tap the connecting rod to one end of the cranks haft journal with a dead blow or wooden hammer.
b Using feeler gauges, measure the clearance between the crankshaft counterweight and the connecting rod.
c The connecting rod side clearance should not exceed specifications, refer to 5 Specifications.
d If the endplay exceeds the specified limits, measure the width of the crankpin end of the connecting rod, refer
to 5 Specifications .
e If the connecting rod width is significantly smaller than specified and severe wear is present on the side of the
connecting rod, replac e the connecting rod.
f If the connecting rod width is within specification and excessive scoring is present on the crankshaft journals,
replace the crankshaft.
CAUTION
Do not use a stamp, punch or any other
method that may distort or stress the
connecting rod and cap. Extensive engine
damage may result from a connecting rod that
is distorted or stressed.
8 Mark the cylinder number on the connec ting rod and the connecting rod cap with a paint stick or permanent marker.

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ISUZU KB P190 2007

Page 3043 of 6020

ISUZU KB P190 2007 Workshop Repair Manual Engine Mechanical – V6 Page 6A1–266
Page 6A1–266
CAUTION
Powdered metal connecting rods have rod
bolts which yield when tighten to the
specified torque. If the bolts are loosened or
rem

Page 3044 of 6020

ISUZU KB P190 2007 Workshop Repair Manual Engine Mechanical – V6 Page 6A1–267
Page 6A1–267
CAUTION
Do not damage the crankshaft journal,
cylinder wall and piston cooling jets when
removing the connecting rod and piston
assembly

Page 3045 of 6020

ISUZU KB P190 2007 Workshop Repair Manual Engine Mechanical – V6 Page 6A1–268
Page 6A1–268
NOTE
The cap and rod are a matched set and must be
kept together.
16 Reattach the connecting rod cap (1) to the connecting rod (2) to pr

Page 3046 of 6020

ISUZU KB P190 2007 Workshop Repair Manual Engine Mechanical – V6 Page 6A1–269
Page 6A1–269
3 Slide the piston pin (1) out of the piston (2). The
piston will disconnect from the connecting rod.

Figure 6A1 – 473
Clean and Ins

Page 3047 of 6020

ISUZU KB P190 2007 Workshop Repair Manual Engine Mechanical – V6 Page 6A1–270
Page 6A1–270
Piston Measurement
1 Measure piston width using the following procedure:
a Using an outside micr ometer, measure the
width of the piston

Page 3048 of 6020

ISUZU KB P190 2007 Workshop Repair Manual Engine Mechanical – V6 Page 6A1–271
Page 6A1–271
Piston Ring Measurement
1 Measure the piston ring end gap using the following
procedure:
a Place the piston ring (1) in the area of the

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