Engines Iveco C10,C13, Cursor 10, Cursor 13. Manual - part 25

7

CURSOR ENGINES F3A

SECTION 4 - OVERHAUL AND TECHNICAL SPECIFICATIONS

Base - May 2007

F3A

Type

mm

X

Measuring dimension

X

125

Max. connecting rod
axis misalignment
tolerance

0.08

1

2

∅

∅

Main journals

∅1

- nominal
- class

1

- class

2

- class

3

Crankpins

∅2

- nominal
- class

1

- class

2

- class

3

92.970 to 93.000
92.970 to 92.979
92.980 to 92.989
92.990 to 93.000

82.970 to 83.000
82.970 to 82.979
82.980 to 82.989
82.990 to 83.000

S 1

S 2

Main bearing shells

S1

Red
Green
Yellow*

2.965 to 2.974
2.975 to 2.984
2.985 to 2.995

Big end bearing shells

S2

Red
Green
Yellow*

1.970 to 1.980
1.981 to 1.990
1.991 to 2.000

3

∅

Main bearing housings

∅3

- nominal
- class

1

- class

2

- class

3

99.000 to 99.030
99.000 to 99.009
99.010 to 99.019
99.020 to 99.030

Bearing shells -
main journals

0.050 to 0.090

Bearing shells -
big ends

0.040 to 0.080

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

45.95 to 46.00

X2

Main bearing housing,
thrust bearing

X2

38.94 to 38.99

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

8

SECTION 4 - OVERHAUL AND TECHNICAL SPECIFICATIONS

CURSOR ENGINES F3A

Base - May 2007

F3A

CYLINDER HEAD - VALVE TRAIN

mm

∅ 1

Valve guide housings
in cylinder head

∅1

14.980 to 14.997

2

∅

Valve guide

∅2

9.015 to 9.030

∅ 3

Valve guide

∅2

∅3

15.012 to 15.025

Valve guides - housings
in the cylinder heads

0.015 to 0.045

Valve guide

0.2 - 0.4

∅ 4

Valves:

∅4

α

8.960 to 8.975

60

° 30′ ± 7′ 30″

α

∅4

α

8.960 to 8.975

45

° 30’ ± 7′ 30″

Valve stem and its guide

0.040 to 0.070

Valve seat in
head

head

∅1

44.185 to 44.220

∅ 1

∅1

∅1

42.985 to 43.020

Outside diameter of valve

2

∅

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

∅2

44.260 to 44.275

∅2

α

60

° - 30’

α

α

∅2

43.060 to 43.075

∅2

α

45

° - 30′

X

Recessing of valve

0.65 to 0.95

X

Recessing of valve

X

1.8 to 2.1

Between valve

Between valve
seat and head

0.040 to 0.090

0.040 to 0.090

9

CURSOR ENGINES F3A

SECTION 4 - OVERHAUL AND TECHNICAL SPECIFICATIONS

Base - May 2007

Type

F3A

Type

mm

Valve spring height:

free height

H

76

H

H 1

2

under a load of:

H 1

H 2 N 500 ±25

H1

62

N 972

±48

H2

48.8

X

Injector protrusion

X

1.14 to 1.4

∅

∅

∅

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:

8.31

H

9.45

11.21

∅ 1

Rocker shaft

∅1

41.984 to 42.000

10

SECTION 4 - OVERHAUL AND TECHNICAL SPECIFICATIONS

CURSOR ENGINES F3A

Base - May 2007

F3A

Type

mm

Bushing housing in
rocker arms

45.000 to 45.016

59.000 to 59.019

∅

46.000 to 46.016

Bushing outer diameter
for rocker arms

45.090 to 45.130

∅

59.100 to 59.140

46.066 to 46.091

Bushing inner diameter
for rocker arms

42.025 to 42.041

∅

56.030 to 56.049

42.015 to 42.071

Between bushings and
housings

0.074 to 0.130

0.081 to 0.140

0.050 to 0.091

Between bushings of
rocker arms and shaft

0.025 to 0.057

0.025 to 0.057

0.015 to 0.087

TURBOCHARGER

Type

HOLSET HX55

End float

-

Radial play

-