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