Engine Iveco C10/C13/C78/Cursor 13/Cursor 78. Manual — part 101
8
SECTION 4 - OVERHAUL AND TECHNICAL SPECIFICATIONS
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
-
∅ 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
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
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 4 - OVERHAUL AND TECHNICAL SPECIFICATIONS
9
Table 2
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:
9.231
H
9.5607
11.216
∅ 1
Rocker shaft
∅1
41.984 to 42.000
10
SECTION 4 - OVERHAUL AND TECHNICAL SPECIFICATIONS
Type
F3B
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
O1
O2
Engine brake control lever
Eccentric pin outer
diameter
∅1
Rocker arms shaft seat
∅2
55.981
÷ 56.000
42.025
÷ 42.041
SECTION 4 - OVERHAUL AND TECHNICAL SPECIFICATIONS
11
Type
F3B
mm
Rocker arms and engine
brake control lever pin
0.025 to 0.057
Rocker arm shaft and seat
on engine brake control
lever
0.025 to 0.057
TURBOCHARGER
Type
HOLSET HX 60W
End float
0.025 to
0.127
Radial play
0.406 to
0.584
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