Isuzu D-Max / Isuzu Rodeo (TFR/TFS). Manual — part 1697
6A-86 ENGINE MECHANICAL (C24SE, C22NE, 22LE, 20LE)
Crankshaft, Cylinder Block (continued)
Piston Rings
2.2 & 2.0L
2.4L
Square ring
Height
mm
1.5
1.2
Tapered ring
Height
mm
1.5
1.5
Oil scraper
Height
mm
3
2.5
Ring gap offset
180
°
Note that the upper steel band ring gap is offset 25 to 50mm to
the left and the lower 25 to 50mm to the right opposite the
intermediate ring gap.
Piston Pin
Length
mm
61.5
Diameter
mm
21
Type
Shrunk into con-rod
Play
mm
2.2 & 2.0L
2.4L
in piston
0.011 to 0.014
0.010-0.015
in con-rod
none
Installation
When installing piston pins,
heat con-rods to approx.
280
°C in oil bath. This
temperature should under no
circumstances be exceeded.
Crankshaft, Cylinder Block (continued)
The permissible weight variation of con-rods without piston and
bearing shell inside an engine is 8 g.
As the con-rods do not have balancing studs, reworking is not
possible.
Con-rods can only be replaced in sets.
ENGINE MECHANICAL (C24SE, C22NE, 22LE, 20LE) 6A-87
Crankshaft, Cylinder Block (continued)
Crankshaft Grinding Dimensions
Crankshaft
jounal
I, II, IV, V
Guide
bearing
III
Con-rod journal
1 to 4
Con-rod width
Diameter
mm
Widtht
mm
Diameter
mm
Width
mm
mm
Normal size
Bearing journal and colour code
from
57.9820 green
to
57.9885
>
57.9885 brown
to
57.9950
25.900
25.850
48.988
48.970
26.580
26.460
26.390
26.338
Bearing shell identification mark
Colour code and embossed
Crankshaft bearing
I, II, IV, V
Guide bearing
III
Con-rod bearing
1 to 4
Identification mark
brown-662N
green-663N
brown-655N
green-658N
Crankshaft
jounal
I, II, IV, V
Guide
bearing
III
Con-rod journal
1 to 4
Con-rod width
Diameter
mm
Widtht
mm
Diameter
mm
Width
mm
mm
0.25mm Undersize for Production and Customer Service
Bearing journal and colour code
from
57.7320 green/
to
57.7385 blue
>
57.7385 brown/
to
57.7450 blue
26.100
26.050
48.738
48.720
26.580
26.460
Bearing shell identification mark
Colour code and embossed
Crankshaft bearing
I, II, IV, V
Guide bearing
III
Con-rod bearing
1 to 4
Identification mark
brown/blue-664 A
green/blue-655 A
brown/blue-657 A
green/blue-658 A
Crankshaft
jounal
I, II, IV, V
Guide
bearing
III
Con-rod journal
1 to 4
Con-rod width
Diameter
mm
Widtht
mm
Diameter
mm
Width
mm
mm
0.50mm Undersize Customer Service
Bearing journal and colour code
from
57.4820 green/
to
57.4885 blue
>
57.4885 brown/
to
57.4950 blue
26.300
26.250
48.488
48.470
26.580
26.460
Bearing shell identification mark
Colour code and embossed
Crankshaft bearing
I, II, IV, V
Guide bearing
III
Con-rod bearing
1 to 4
Identification mark
brown/white-666 B
green/white-667 B
brown/blue-659 B
green/blue-660 B
6A-88 ENGINE MECHANICAL (C24SE, C22NE, 22LE, 20LE)
Piston Pins
Dimensions
Length
mm
Diameter
mm
61.5
21
Type
Shank-fit in con-rod
Clearance
In piston
mm
In con-rod
mm
2.2L & 2.0L 2.4L
0.011 to 0.014 0.010 to 0.015
0
0
Installation
See operation “Con-rod, Replace”
ENGINE MECHANICAL (C24SE, C22NE, 22LE, 20LE) 6A-89
Con-rod
Permissible, weight variation of con-rods without pistons and bearing shells within an engine 8 g.
As the con-rods have no counterweights, re-working is not possible.
Con-rods must be replaced only as a set.
Crankshaft Grinding Dimensions
Crankshaft
bearing journals
I, II, III, IV, V
Guide bearings
III
Con-Rod bearing journals
1 to 4
Con-rod
diameter in
mm/colour code
width
in mm
diameter
in mm
width
in mm
width
in mm
Standard Size for Production and Service
from 57.974
white
to
57.981
over 57.981
green
to
57.988
over 57.988
brown
to
57.995
26.002
25.950
48.988
48.970
26.580
26.450
26.390
26.338
Crankshaft, Cylinder Block (continued)
Crankshaft and con-rod journal Permissible out-of-round:
0.04mm
Out-of-round
Permissible variation of middle
crankshaft bearing journal
when seating shaft into
cylinder block: 0.03mm
Permissible end play
0.05 to 0.152mm
Permissible main bearing play
Bearing I to V0.015 to 0.04mm
Permissible con-rod play
0.006 to 0.031mm
Permissible con-rod and play
0.07 to 0.24mm
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