Isuzu D-Max / Isuzu Rodeo (TFR/TFS). Manual - part 1696

6A-82 ENGINE MECHANICAL (C24SE, C22NE, 22LE, 20LE)

Adjustment Values/Checking Values

Valve clearance

Inlet

Hydraulic valve lash adjustment

Outlet

No adjustment necessary

Spark plugs - electrode gap

1.0 

∼ 1.1mm

Compression

The difference in compression

between the individual cylinders

in the engine must not exceed

100 kPa (1 bar).

Pressure loss

The pressure loss of an engine

in perfect condition per cylinder

is not more than max. 25%

Cylinder Head

Cylinder Head Gasket

Thickness - installed

mm

1.15 to 1.30

Valve seat width at cylinder head

inlet

mm

1.0 to 1.5

outlet

mm

1.7 to 2.2

Valve stem play inlet

mm

0.018 to 0.052

outlet

mm

0.038 to 0.072

Permissible valve stem to cone runout

inlet

mm

0.03

outlet

mm

0.33

Overall height of cylinder head

(Sealing surface to sealing surface) mm

96.00 

± 0.25

Installation height

inlet and

outlet valves

mm

17.85 to 18.25

dimension "A"

Distance Gauge

5-8840-2596-0

Installation height valve guide

mm

83.50 to 83.80

Sealing surface peak-to-valley height mm

max. 0.025

ENGINE MECHANICAL (C24SE, C22NE, 22LE, 20LE) 6A-83

Cylinder Head (continued)

Valve System

Valve lifter

valve play compensator

(hydraulic)

Valve rotators

(inlet or outlet)

outlet

Valve play

(warm or cold)

inlet

mm

0

outlet

mm

0

Cylinder head height

mm 280.3

±0.075

Cylinder head bottom, face parallelism

mm 0.05

6A-84 ENGINE MECHANICAL (C24SE, C22NE, 22LE, 20LE)

Cylinder Head (continued)

Valve Dimensions

C24SE, C22NE, 22LE, 20LE

A in mm

B in mm

C(diameter in mm) and identification mark

D

1)

2)

Normal K

Oversize K1

0.075

Oversize K2

0.150

Oversize A

0.250

Inlet valve

104.2

103.8

41.8

7.012
6.998

7.087
7.073

7.162
7.148

7.262
7.248

44

°

Outlet valve

104.0

103.6

36.5

6.992
6.978

7.087
7.053

7.142
7.128

7.242
7.228

44

°

Valve stem
bore

-

7.050
7.030

7.125
7.105

7.200
7.180

7.300
7.280

-

1) Production

2) Customer service

The P and A department only supplies valves with a length of 103.8mm (inlet valve) and 103.6mm (outlet valve)
only

Camshaft

2.2L& 2.0L

2.4L

Identification letter

J

K

Colour code

Normal size

-

0.1mm undersize

violet

Radial runout

mm

0.03

End play

mm

0.09 to 0.21

Cam lift

Inlet and outlet valve mm

6.67

Grinding Dimension for Camshaft Bearing Position

Bearing

Bearing journal

diameter in mm

Diameter

in housing

normal

-0.1mm

normal

-0.1mm

1

42.470
42.455

42.370
42.355

42.525
42.425

42.500
42.400

2

42.720
42.705

42.620
42.605

42.775
42.750

42.675
42.650

3

42.970
42.955

42.870
42.855

43.025
43.000

42.925
42.900

4

43.220
43.205

43.120
43.105

43.275
43.250

43.175
43.150

5

43.470
43.455

43.370
43.355

43.525
43.500

43.425
43.400

ENGINE MECHANICAL (C24SE, C22NE, 22LE, 20LE) 6A-85

Crankshaft, Cylinder Block

Cylinder Grinding and Piston dimensions

Cylinder Grinding and Piston Dimensions

Size

Cylinder bore dia. in mm

Cylinder to

Related piston dia. in mm Piston head

Crankshaft

co- efficient

housing

co-efficient

over

to

over

to

Production

1

85.97*

85.89

8

85.95

85.96

8

(2.2L & 2.0L) 2

85.98
85.99
86.00
86.01

85.99
86.00
86.01
86.02

99
00
01
02

85.96
85.97
85.98
85.99

85.97
85.98
85.99
86.00

99
00
01
02

Production

(2.4L)

1

87.48
87.49

87.49
87.50

99
00

87.46
87.47

87.47
87.48

99
00

Customer

service

(2.2L & 2.0L)

Oversize
0.5mm

8.46

86.47

7+0.5

86.44

86.45

7+0.5

Customer

service

(2.4L)

-

87.99

88.00

0+0.5

87.97

87.98

7+0.5

Piston diameter must be measured at the position "D".

*inclusive

Crankshaft, Cylinder Block (continued)

Cylinder Bore

Rebore cylinder

Permissible oversize to 0.5mm (see parts

microfiche)

After reboring, invalidate original crankcase
housing coefficient and drive in new oversize
coefficient

Permissible out-of-round:

0.013mm

Permissible taper:

0.013mm

Measure out-of-round in bore at 4 different
heights

Piston projection above upper edge of cylinder block

0.40mm

Piston
Type

Recessed pistons

Clearance

For short-blocks and cylinder blocks with
complete pistons, the clearance is 0.02 to
0.04mm

For replacement (oversize), depending on
available pistons, a clearance of 0.02 to
0.04mm is permissible