Iveco EuroCargo (12 to 26 t). Manual — part 31

E

URO

C

ARGO

T

ECTOR

12-26 t

124

ENGINE F4 AE 0681

Base - February 2003

F4AE0681E

(.18)

F4AE0681D

(.21)

F4AE0681B

(.24)

F4AE0681A

(.28)

CYLINDER HEAD — TIMING SYSTEM

mm

H

H 1

H 2

Valve spring height:

free spring

H

under a load equal to:
339.8

± 19 N

H1

741

± 39 N

H2

47.75

35.33

25.2

X

Injector protrusion

X

It cannot be adjusted

∅

∅

∅

1

2 3

4-5-6 7

Camshaft bush housings
No. 1-7

Camshaft housings
No. 2-3-4-5-6

59.222

÷ 59.248

59.222

÷ 59.248

∅

∅

∅

1

2

3

Camshaft journals:
1

⇒ 7

∅ 1-2-3

53.995

÷ 54.045

∅

Camshaft bush outside
diameter:
with a load of 3.3 kN

∅

59.222

÷ 59.248

∅

Bush inside diameter
after ramming

∅

54.083

÷ 54.147

Bushes and housings
on block

0.113

÷ 0.165

Bushes and journals

0.038

÷ 0.152

H

Cam lift:

H

H

6.045

7.582

E

URO

C

ARGO

T

ECTOR

12-26 t

ENGINE F4 AE 0681

125

Base - February 2003

F4AE0681E

(.18)

F4AE0681D

(.21)

F4AE0681B

(.24)

F4AE0681A

(.28)

CYLINDER HEAD — TIMING SYSTEM

mm

∅ 1

Tappet cap housing
on block

∅ 1

16.000

÷ 16.030

∅ 2

3

∅

∅

2

Tappet cap outside diameter:

∅ 2

∅ 3

15.924

÷ 15.954

15.960

÷ 15.975

Between tappets and housings

0.025

÷ 0.070

Tappets

-

∅ 1

Rocker shaft

∅ 1

21.965

÷ 21.977

∅ 2

Rockers

∅ 2

22.001

÷ 22.027

Between rockers and shaft

0.024

÷ 0.162

70508

Figure 1

ENGINE F4AE0681 CROSS SECTION

E

URO

C

ARGO

T

ECTOR

12-26 t

126

ENGINE F4 AE 0681

Base - February 2003