Engines Iveco C10,C13, Cursor 10, Cursor 13. Manual — part 70
TIMING CONTROL COMPONENT PARTS
1. Camshaft - 2. Bushing - 3. Pin - 4. Articulated rod -
5. Camshaft control gear - 6. Idler gear - 7. Twin idler gear
- 8. Drive shaft driving gear.
86925
*
This measurement is obtained after assembling.
TIMING GEAR
Camshaft drive
101602
Figure 104
Figure 105
Figure 106
101601
*
This measurement is obtained after assembling.
Idler gear pin
Idler gear
Twin intermediate gear pin
Twin idler gear
Replacing the bushings
Bushings (2) can be replaced when they are worn. Put up the
bushing, then bore it to obtain the diameter shown on
Figure 105 or Figure 106.
The bushing must be driven into the gear by following
the direction of the arrow and setting the latter to the
dimension shown on Figure 105 or Figure 106.
Rated assembling play between gear bushings and pins:
Figure 105 — 0.045
÷ 0.075 mm
Figure 106 — 0.045
÷ 0.085 mm.
NOTE
44
SECTION 4 - OVERHAUL AND TECHNICAL SPECIFICATIONS
F3B CURSOR ENGINES
Base - May 2007
SECTION 4 - OVERHAUL AND TECHNICAL SPECIFICATIONS
45
F3B CURSOR ENGINES
TIGHTENING TORQUE
PART
TORQUE
PART
Nm
kgm
Capscrews, undercrankcase to crankcase
♦
M12x1.75 outer screws
Stage 1: pretightening
30
(3)
M 17x2 inner screws
Stage 2: pretightening
120
(12)
Inner screws
Stage 3: angle
60
°
Inner screws
Stage 4: angle
55
°
Outer screws
Stage 5: angle
60
°
Piston cooling nozzle union
♦
35
± 2
(3.5
± 0.2)
Capscrews, heat exchanger to crankcase
♦
pretightening
tightening
11.5
± 3.5
19
± ≤
(1.15
± 0.35)
(1.9
± 0.3)
Piston cooling nozzle union
♦
24,5
± 2,5
(2.4
± 0.25)
Spacer and oil sump capscrews
♦
pretightening
tightening
38
45
(3.8)
(4.5)
M 12x1.75 screws, gear case to crankcase
♦
63
± 7
(6.3
± 0.7)
M 12x1.75 screws, gear case to crankcase
♦
24
± 2,5
(2.4
± 0.25)
Cylinder head capscrews
♦
Stage 1:
pretightening
60
(6)
Stage 2
pretightening
120
(12)
Stage 3:
angle
90
°
Stage 4:
angle
65
°
Rocker shaft capscrew
♦
Stage 1:
pretightening
100
(10)
Stage 2:
angle
60
°
Locknut, rocker adjusting screw
♦
39
± 5
(3.9
± 0.5)
Capscrews, injector securing brackets
♦
26
(2.6)
Capscrews, injector securing brackets
♦
8,5
± 1,5
(0.8
± 0.15)
Capscrews, thrust plates to head
♦
19
± 3
(1.9
± 0.3)
Screw fastening the engine supporting bracket to the cylinder head
Stage 1:
pretightening
120
(12)
Stage 2:
angle
45
°
♦ Before assembly, lubricate with UTDM oil
•
Before assembly, lubricate with graphitized oil
46
SECTION 4 - OVERHAUL AND TECHNICAL SPECIFICATIONS
F3B CURSOR ENGINES
Base - May 2007
TORQUE
PART
Nm
kgm
Screw fastening the engine supporting bracket to the flywheel case
Stage 1:
pretightening
100
(10)
Stage 2:
angle
60
°
Camshaft gear capscrews
♦
Stage 1:
pretightening
60
(6)
Stage 2:
angle
60
°
Screw fixing phonic wheel to timing system gear
♦
8.5
± 1.5
(0.85
± 0.15)
Exhaust manifold capscrews
•
pretightening
tightening
40
± 5
70
± 5
(4
± 0.5)
(7
± 0.5)
Capscrews, connecting rod caps
♦
Stage 1:
pretightening
60
(6)
Stage 2:
angle
60
°
Engine flywheel capscrews
♦
Stage 1:
pretightening
120
(12)
Stage 2:
angle
90
°
Screws fixing damper flywheel:
♦
First phase
pre-tightening
70
(7)
Second phase
closing to angle
50
°
Screws fixing intermediate gear pins:
♦
First phase
pre-tightening
30
(3)
Second phase
closing to angle
90
°
Screw fixing connecting rod for idle gear
24.5
± 2.5
(2.45
± 0.25)
Screws fixing oil pump
24.5
± 2.5
(2.45
± 0.25)
Screws fixing crankshaft gasket cover
24.5
± 2.5
(2.45
± 0.25)
Screws fixing fuel pump/filter
19
(1.9)
Screw fixing control unit mount to crankcase
19
± 3
(1.9
± 0.3)
Screws and nuts fixing turbocharger
•
pre-tightening
tightening
35
46
(3.5
(4.6)
Screws fixing water pump to crankcase
22
± 2
(2.2
± 0.2)
Screws fixing water pump to crankcase
25
(2.5)
Screw fixing automatic tensioner to crankcase
26
± 3
(2.6
± 0.3)
Screw fixing fixed tensioner to crankcase
50
± 5
(5
± 0.5)
Screws fixing fan mount to crankcase
105
± 5
(10.5
± 0.5)
Screws fixing starter motor
74
± 4
(7.4
± 0.4)
Screws fixing air heater to cylinder head
30
± 3
(3
± 0.3)
♦ Before assembly, lubricate with UTDM oil
•
Before assembly, lubricate with graphitized oil
SECTION 4 - OVERHAUL AND TECHNICAL SPECIFICATIONS
47
F3B CURSOR ENGINES
PART
TORQUE
PART
Nm
kgm
Screw fixing alternator
M 10x1,5
I = 35 mm
M 10x1,5
I = 60 mm
30
± 3
44
± 4
(3
± 0.3)
(4.4
± 0.4)
Screws fixing air-conditioner compressor to mount
24.5
± 2.5
(2.5
± 0.25)
Screws fixing guard
24.5
± 25
(2.5
± 0.25)
Filter clogging sensor fastening
55
± 5
(5.5
± 0.5)
Water/fuel temperature sensor fastener
35
(3.5)
Thermometric switch/transmitter fastener
25
(2.5)
Air temperature transmitter fastener
35
(3.5)
Pulse transmitter fastener
8
± 2
(0.8
± 0.2)
Injector-pump connections fastener
1.36
± 1.92
(0.13
± 0.19)
♦ Before assembly, lubricate with UTDM oil
•
Before assembly, lubricate with graphitized oil
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