Engine Iveco C10/C13/C78/Cursor 13/Cursor 78. Manual - part 125

SECTION 2 - APPLICATION G-DRIVE

17

Type

F3B

Type

mm

X

Measuring dimension

X

125

Max. connecting rod
axis misalignment
tolerance

0.08

1

2

∅

∅

1

2

Main journals

∅1

- rated value
- class

1

- class

2

- class

3

Crankpins

∅2

- rated value
- class

1

- class

2

- class

3

99.970 to 100.000

99.970 to 99.979
99.980 to 99.989

99.990 to 100.000

89.970 to 90.000
89.970 to 89.979
89.980 to 89.989
89.990 to 90.000

S 1

S 2

Main bearing shells

S1

Red
Green
Yellow*

3.110 to 3.120
3.121 to 3.130
3.131 to 3.140

Big end bearing shells

S2

Red
Green
Yellow*

1.965 to 1.975
1.976 to 1.985
1.986 to 1.995

3

∅

Main bearing housings

∅3

- rated value
- class

1

- class

2

- class

3

106.300 to 106.330
106.300 to 106.309
106.310 to 106.319
106.320 to 106.330

Bearing shells - main journals

f

0.060

÷ 0.108 * - 0.061 ÷ 0.119 ** - 0.060 ÷ 0.130 ***

Bearing shells - big ends

f

0.050

÷ 0.108 * - 0.051 ÷ 0.109 ** - 0.050 ÷ 0.098 ***

Main bearing shells

0.127 - 2.254 - 0.508

Big end bearing shells

0.127 - 2.254 - 0.508

X1

Main journal,
thrust bearing

X1

47.95 to 48.00

X2

Main bearing housing,
thrust bearing

X2

40.94 to 40.99

X 3

Thrust washer
halves

X3

3.38 to 3.43

Crankshaft end float

0.10 to 0.30

1

2

Alignment

1 - 2

Ovalization

1 - 2

Taper

1 - 2

≤ 0.025

0.010

0.010

*

Fitted in production only and not supplied as spares

f

Spares provided: : * = standard spares - 0.127; ** = 0.254 - 0.508

18

SECTION 2 - APPLICATION G-DRIVE

Type

F3B

CYLINDER HEAD - VALVE TRAIN

mm

∅ 1

Valve guide housings
in cylinder head

∅1

15.980 to 15.997

2

∅

Valve guide

∅2

10.015 to 10.030

∅ 3

Valve guide

∅2

∅3

16.012 to 16.025

Valve guides - housings
in the cylinder heads

0.015 to 0.045

Valve guide

0.2 - 0.4

∅ 4

Valves:

∅4

α

9.960 to 9.975

60

° 30′ ± 7′ 30″

α

∅4

α

9.960 to 9.975

45

° 30’ ± 7′ 30″

Valve stem and its guide

0.040 to 0.070

Valve seat in
head

head

∅1

49.185 to 49.220

∅ 1

∅1

∅1

46.985 to 47.020

Outside diameter of valve

2

∅

Outside diameter of valve
seat; angle of valve seat
in cylinder head:

∅2

49.260 to 49.275

∅2

α

60

° - 30’

α

∅2

47.060 to 47.075

∅2

α

45

° - 30′

X

Recessing of valve

0.45 to 0.75

X

Recessing of valve

X

1.65 to 1.95

Between valve

Between valve
seat and head

0.040 to 0.090

0.040 to 0.090

SECTION 2 - APPLICATION G-DRIVE

19

Table 3

Type

F3B

Type

mm

Valve spring height:

free height

H

73.40

H

H 1

2

under a load of:

H 1

H 2 575 ± 28 N

H1

59

1095

± 54 N

H2

45

X

Injector protrusion

X

0.53 to 1.34

∅

∅

∅

Camshaft bushing housing
in the cylinder head:
1

⇒ 7

Ø

88.000 to 88.030

∅

∅

∅

1

2

3

Camshaft bearing
journals:
1

⇒ 7

Ø

82.950 to 82.968

∅

Outer diameter of
camshaft bushings:

∅

88.153 to 88.183

∅

Inner diameter of
camshaft bushings:

∅

83.018 to 83.085

Bushings and housings
in the cylinder head

0.123 to 0.183

Bushings and bearing
journals

0.050 to 0.135

Cam lift:

9.560

H

9.231

11.216

∅ 1

Rocker shaft

∅1

41.984 to 42.000

20

SECTION 2 - APPLICATION G-DRIVE

Type

F3B

Type

mm

Seats for bushings in
rocker arms:

45.000 to 45.016

59.000 to 59.019

∅

46.000 to 46.016

Outside diameter of
bushings for rocker arms:

45.090 to 45.130

∅

59.100 to 59.140

46.066 to 46.091

Inside diameter of bushings
for rocker arms:

42.025 to 42.041

∅

56.030 to 56.049

42.015 to 42.071

Bushings and seats:

0.074 to 0.130

0.081 to 0.140

0.050 to 0.091

Rocker arm bushings and shaft:

0.025 to 0.057

0.025 to 0.057

0.015 to 0.087

O1

O2

Engine brake control lever

Eccentric pin outer
diameter

∅1

Rocker arms shaft seat

∅2

55.981 to 56.000

42.025 to 42.041