Iveco Stralis AT/AD. Manual - part 9

22

ENGINE F2B

S

TRALIS

AT/AD

Base - January 2003

PART

TORQUE

Nm

kgm

Under-basement fastening screws to cylinder block (see Figure 6)

♦

Outer screws

First stage : pre-tightening

M10x1.25

25

2.5

Inner screws

Second stage : pre-tightening

M16x2

140

14

Inner screws

Third stage : angle closing

M16x2

60

°

Inner screws

Fourth stage : angle closing

M16x2

60

°

Outer screws

Fifth stage : angle closing

M10x1,5

90

°

Pipe union for piston cooling nozzle

M12X1.5

35

± 2

3.5

± 0.2

Intercooler fastening screws to cylinder block

♦ (see Figure 10)

pre-tightening
tightening

11.5

± 3.5

19

± 3

1.15

± 0.35

1.9

± 0.3

Plug

125

± 15

12.5

± 1.5

Spacer and oil sump fastening screws (see Figure 11)

41.5

± 3.5

4.1

± 0.3

Gearcase fastening screws to cylinder block

41.5

± 3.5

4.1

± 0.3

63

± 7

6.3

± 0.7

9

± 3

1.9

± 0.3

Cylinder head fastening screw: (see Figure 7)

♦

First stage

pre-tightening

50

5

Second stage

pre-tightening

100

10

Third stage

angle closing

90

°

Fourth stage

angle closing

75

°

Rocker arm shaft fastening screw

♦

First stage

pre-tightening

40

4

Second stage

pre-tightening

60

°

Locknut for rocker arm adjusting screw

♦

39

± 5

3.9

± 5

Screws for injector fastening brackets

♦

36.5

3.65

Shoulder plate fastening screws to head

♦

23.5

2.35

Engine support bracket fastening screws to cylinder head

74

± 8

7.4

± 0.8

Gear fastening screws to camshaft:

♦

First stage

pre-tightening

50

5

Second stage

pre-tightening

50

°

Phonic wheel fastening screws to distribution gear

8.5

± 1.5

0.8

± 0.1

Exhaust pipe fastening screws

• (see Figure 8)

pre-tightening
tightening

32.5

± 7.5

47

± 2.5

3.2

± 0.7

4.7

± 0.2

Engine brake actuator cylinder fastening screws

24.5

± 2.5

2.4

± 0.2

Connecting rod cap fastening screws:

♦

First stage

pre-tightening

50

5

Second stage

pre-tightening

40

°

Engine flywheel fastening screws:

♦

M16x1.5x58

First stage

pre-tightening

100

10

Second stage

pre-tightening

60

°

Engine flywheel fastening screws:

♦

M16x1.5x110

First stage

pre-tightening

100

10

Second stage

pre-tightening

120

°

Flywheel pulley fastening screws to crankshaft :

♦

First stage

pre-tightening

70

7

Second stage

pre-tightening

50

°

♦ Lubricate with oil MOLYKOTE before assembly
•

Lubricate with graphitized oil before assembly

ENGINE F2B

23

S

TRALIS

AT/AD

TIGHTENING TORQUES

PART

TORQUE

Nm

kgm

Damper flywheel fastening screws:

♦

115

± 15

11.5

± 1.5

Idler gear pin fastening screws:

♦

First stage

pre-tightening

30

3

Second stage

pre-tightening

90

°

Idle gear link rod fastening screw

24.5

± 2.5

2.4

± 0.2

Oil pump fastening screw

24.5

± 2.5

2.4

± 0.2

Oil pump suction rose fastening screw

24.5

± 2.5

2.4

± 0.2

Front cover fastening screw to cylinder block

♦

19

± 3

1.9

± 0.3

Control unit fastening screw to cylinder block

♦

19

± 3

1.9

± 0.3

Supply pump fastening screw to gearcase

♦

19

± 3

1.9

± 0.3

Fuel filter support fastening screw to cylinder head

♦

37

± 3

3.7

± 0.3

Turbo-compressor fastening screws and nuts

• (see Figure 9)

pre-tightening
tightening

32.5

± 7.5

46

± 2

3.2

± 0.7

4.6

± 0.2

Water pump fastening screw to cylinder block

24.5

± 2.5

2.4

± 0.2

Pulley fastening screw to hub

55

± 5

5.5

± 0.5

Rocker arm cover fastening screws (see Figure 12)

9

0.9

Thermostat box fastening screws to cylinder head

24.5

± 2.5

2.4

± 0.2

Automatic tightener fastening screws to cylinder block

45

± 5

4.5

± 0.5

Fixed tightener fastening screws to cylinder block

105

± 5

10.5

± 0.5

Fan support fastening screws to cylinder block

24.5

± 2.5

2.4

± 0.2

Starter fastening screws

44

± 4

4

± 0.4

Air heater on cylinder head

30

± 3

3

± 0.3

Air compressor fastening screw to cylinder head

74

± 8

7.4

± 0.8

Air compressor control gear fastening nut

170

17

± 1

Hydraulic power steering pump gear fastening nut

46.5

± 4.5

4.6

± 0.4

Air conditioner compressor fastening screw to support

24.5

± 2.5

2.4

± 2.5

Air conditioner compressor support fastening screw to cylinder block

44

± 4

4.4

± 0.4

Alternator support fastening screw to cylinder block

44

± 4

4.4

± 0.4

Alternator bracket fastening screw to cylinder block

24.5

± 2.5

2.4

± 0.2

Water pipe unions

35

3.5

Water temperature sensor

32.5

± 2.5

3.2

± 0.2

♦ Lubricate with oil MOLYKOTE before assembly
•

Lubricate with graphitized oil before assembly

24

ENGINE F2B

S

TRALIS

AT/AD

Base - January 2003

PART

TORQUE

Nm

kgm

Engine brake solenoid valve fastening screws

32.5

± 2.5

3.2

± 0.2

Flywheel rev sensor fastening screw

8

± 4

0.8

± 0.2

Camshaft rev sensor fastening screw

8

± 2

0.8

± 0.2

P.D.E solenoid connector fastening screw

1.62

± 0.3

0.1

± 0.3

Overboost pressure sensor fastening screw

8

± 2

0.8

± 0.2

Absolute pressure sensor fastening screw

22.5

± 2.5

2.2

± 0.2

P.W.M. control valve fastening screw/nut

8

± 2

0.8

± 0.2

Fuel/coolant temperature sensor

35

3.5

Coolant temperature indicator

23.5

± 2.5

2.3

± 0.2

Filter clogging sensor

10

1

Oil temperature switch

25

± 1

2.5

± 0.1

Oil pressure sensor

25

± 1

2.5

± 0.1

Oil clogging sensor

55

± 5

5.5

± 0.5

Electric wire fastening screw

8

± 2

0.8

± 0.2

Heater fastening screw

12.5

± 2.5

1.2

± 0.2

44898

FRONT SIDE

Front phase:

angle tightening

of inner screws

60º

44897

44899

44898

Figure 6

First phase:

preliminary tightening

of outer screws

(25 Nm)

FRONT SIDE

FRONT SIDE

Second phase:

preliminary

tightening of
inner screws

(140 Nm)

Fifth phase:

angle tightening
of outer screws

90º

44898

FRONT SIDE

Third phase:

angle tightening

of inner screws

60º

FRONT SIDE

ENGINE F2B

25

S

TRALIS

AT/AD

UNDERBLOCK FIXING SCREWS TIGHTENING SEQUENCE