This document provides specifications for Iveco "NEF" diesel engines, including 3 and 4 cylinder atmospheric and turbocharged models. It describes the engines' lubrication, cooling, and turbocharging systems. Dimensions are provided for pistons, crankshafts, cylinder heads, valves, and other components. Clearances and tolerances are indicated. The engines use mechanical injection pumps and have 2 valves per cylinder.
𝘼𝙣𝙩𝙞𝙦𝙪𝙚 𝙋𝙡𝙖𝙨𝙩𝙞𝙘 𝙏𝙧𝙖𝙙𝙚𝙧𝙨 𝙞𝙨 𝙫𝙚𝙧𝙮 𝙛𝙖𝙢𝙤𝙪𝙨 𝙛𝙤𝙧 𝙢𝙖𝙣𝙪𝙛𝙖𝙘𝙩𝙪𝙧𝙞𝙣𝙜 𝙩𝙝𝙚𝙞𝙧 𝙥𝙧𝙤𝙙𝙪𝙘𝙩𝙨. 𝙒𝙚 𝙝𝙖𝙫𝙚 𝙖𝙡𝙡 𝙩𝙝𝙚 𝙥𝙡𝙖𝙨𝙩𝙞𝙘 𝙜𝙧𝙖𝙣𝙪𝙡𝙚𝙨 𝙪𝙨𝙚𝙙 𝙞𝙣 𝙖𝙪𝙩𝙤𝙢𝙤𝙩𝙞𝙫𝙚 𝙖𝙣𝙙 𝙖𝙪𝙩𝙤 𝙥𝙖𝙧𝙩𝙨 𝙖𝙣𝙙 𝙖𝙡𝙡 𝙩𝙝𝙚 𝙛𝙖𝙢𝙤𝙪𝙨 𝙘𝙤𝙢𝙥𝙖𝙣𝙞𝙚𝙨 𝙗𝙪𝙮 𝙩𝙝𝙚 𝙜𝙧𝙖𝙣𝙪𝙡𝙚𝙨 𝙛𝙧𝙤𝙢 𝙪𝙨.
Over the 10 years, we have gained a strong foothold in the market due to our range's high quality, competitive prices, and time-lined delivery schedules.
𝘼𝙣𝙩𝙞𝙦𝙪𝙚 𝙋𝙡𝙖𝙨𝙩𝙞𝙘 𝙏𝙧𝙖𝙙𝙚𝙧𝙨 𝙞𝙨 𝙫𝙚𝙧𝙮 𝙛𝙖𝙢𝙤𝙪𝙨 𝙛𝙤𝙧 𝙢𝙖𝙣𝙪𝙛𝙖𝙘𝙩𝙪𝙧𝙞𝙣𝙜 𝙩𝙝𝙚𝙞𝙧 𝙥𝙧𝙤𝙙𝙪𝙘𝙩𝙨. 𝙒𝙚 𝙝𝙖𝙫𝙚 𝙖𝙡𝙡 𝙩𝙝𝙚 𝙥𝙡𝙖𝙨𝙩𝙞𝙘 𝙜𝙧𝙖𝙣𝙪𝙡𝙚𝙨 𝙪𝙨𝙚𝙙 𝙞𝙣 𝙖𝙪𝙩𝙤𝙢𝙤𝙩𝙞𝙫𝙚 𝙖𝙣𝙙 𝙖𝙪𝙩𝙤 𝙥𝙖𝙧𝙩𝙨 𝙖𝙣𝙙 𝙖𝙡𝙡 𝙩𝙝𝙚 𝙛𝙖𝙢𝙤𝙪𝙨 𝙘𝙤𝙢𝙥𝙖𝙣𝙞𝙚𝙨 𝙗𝙪𝙮 𝙩𝙝𝙚 𝙜𝙧𝙖𝙣𝙪𝙡𝙚𝙨 𝙛𝙧𝙤𝙢 𝙪𝙨.
Over the 10 years, we have gained a strong foothold in the market due to our range's high quality, competitive prices, and time-lined delivery schedules.
Things to remember while upgrading the brakes of your carjennifermiller8137
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Claas nectis f 267 2+4 wd (type t16) tractor service repair manual
1. A3.2 Nectis 207 – 12.2005 – GB
General specification
103vfm00 Fig. 1
"NEF" engines are 3 or 4 cylinder diesel units with
2 valves per cylinder, and may be atmospheric or
turbo-charged. They are equipped with mechanical rotary
injection pumps.
N.B.: The data, characteristics and outputs are only
valid if the installer observes the relevant Iveco
installation recommendations. Any equipment fitted
by the installer must also always respect the torque
and power outputs and rpm figures for which the
engine was designed.
2. A3.4 Nectis 207 – 12.2005 – GB
General specification
3 cylinder engines
Type
CE0304 Atmospheric F4CE0354 Turbo-charged
B*D6.. A*D6.. C*D6..
Compression ratio 17,5: 1
Maximum power *
Maximum torque *
Rated speed (rpm) *
Tick-over speed *
Maximum no-load engine rpm *
• Lubrication
Oil pressure, hot engine:
Supplied by a lobe pump, via a pressure limiting valve and oil filter
– At minimum rpm (bar). 1,2
– At maximum rpm (bar). 3,8
• Cooling Liquid
Water pump drive: Belt driven
Thermostat:
– Starts opening at (°C). 81 ± 2
Lubricant*
• Capacity (litres)
– Engine sump
* Refer to the user manual.
*
bar
3. Nectis 207 – 12.2005 – GB A3.5
General specification
Type
CE0304 Atmospheric F4CE0354 Turbo-charged
B*D6.. A*D6.. C*D6..
Number of cylinders 3
Bore (mm) 104
Stroke (mm) 132
Overall capacity (cm³) 3 364
Ω
+ + + ... =
4. A3.6 Nectis 207 – 12.2005 – GB
General specification
4 cylinder engines
Type
F4CE0404
Atmospheric
F4CE0454
Turbo-charged
A*D6.. A*D6.. C*D6..
Compression ratio 17,5: 1
Maximum power *
Maximum torque *
Rated speed *
Tick-over speed *
Maximum no-load engine rpm *
• Lubrication
Oil pressure, hot engine:
Supplied by a lobe pump, via a pressure limiting valve and oil filter
– At minimum rpm (bar). 1,2
– At maximum rpm (bar). 3,8
• Cooling Liquid
Water pump drive: Belt driven
Thermostat:
– Starts opening at (°C). 81 ± 2
Lubricant*
• Capacity (litres)
– Engine sump
* Refer to the user manual.
*
bar
5. Nectis 207 – 12.2005 – GB A3.7
General specification
The data, characteristics and outputs are only valid if
the installer observes the relevant Iveco installation
recommendations.
Any equipment fitted by the installer must also
always respect the torque and power outputs and rpm
figures for which the engine was designed.
Type
F4CE0404 F4CE0454
A*D6.. A*D6.. C*D6..
Number of cylinders 4
Bore (mm) 104
Stroke (mm) 132
Overall capacity (cm³) 4 485
Ω
+ + + ... =
6. A3.8 Nectis 207 – 12.2005 – GB
Lubrication
Operation
The pressurised lubrication system uses a lobe oil pump
located at the front of the block, driven by the splined ring
attached to the crankshaft cone. Oil is pumped from the
crankcase to the crankshaft, the camshaft and the
cylinder head (oil cooler, turbocharger).
Oil system layout (3-cylinder engine)
221vfm00 Fig. 3
Nomenclature
177 Turbocharger oil return line.
178 Oil filter.
179 Oil cooler element.
180 Oil cooler.
181 Oil pump.
Oil pressure feed.
Oil gravity return route.
177
178
179
180
181
8. A3.10 Nectis 207 – 12.2005 – GB
Cooling
Operation
The pressurised closed circuit engine cooling system has
the following components:
• Expansion tank.
• Radiator, to dissipate the heat extracted from the
engine by the coolant fluid.
• Visco-static cooling fan to increase the radiator's heat
dissipation capability, that also forms part of the engine's
specific build.
– An oil cooler to cool the lubricant oil
– A centrifugal-type water pump located at the front of the
engine block.
– A thermostat that controls the circulation of the coolant
fluid.
Cooling (3-cylinder engine)
251vfm05 Fig. 5
Nomenclature
A Radiator inlet.
B Radiator outlet.
Coolant leaving the thermostat.
Coolant recirculating within the engine.
Coolant entering the water pump.
A
B
9. Nectis 207 – 12.2005 – GB A3.11
Cooling
Cooling system (4-cylinder engine)
251vfm06 Fig. 6
Nomenclature
A Radiator inlet.
B Radiator outlet.
Coolant leaving the thermostat.
Coolant recirculating within the engine.
Coolant entering the water pump.
A
B
10. A3.12 Nectis 207 – 12.2005 – GB
Turbocharger
Operation
Turbo-charged version of the engine
167vfm00 Fig. 7
The air intake system consists of an air filter and an
exhaust-driven compressor (turbocharger).
Air from the compressor outlet is fed directly to the inlet
manifold.
Nomenclature
4 Exhaust.
209 Air filter.
210 Turbocharger. A 3 cylinder version.
B 4 cylinder version.
210
4
210
209
209
A
B
4
12. A3.14 Nectis 207 – 12.2005 – GB
DIMENSIONS
Type Atmospheric Turbo-charged
Engine block and crank assembly (mm)
Piston ring gap in cylinder
liner:
X1
X2
X3
0,25 – 0,55
0,30 – 0,55
0,30 – 0,55
0,30 – 0,40
0,60 – 0,80
0,30 – 0,55
Connecting rod
Bush housing in small end (ø
1)
40,987 – 41,013
Big-end bearing shell housing
(ø 2)
72,987 – 73,013
Small end bush dimensions
External (ø 4)
Internal (ø 3)
40,987 – 41,013
38,019 – 38,033
Replacement big-end bearing
shells supplied (S)
1,955 – 1,968
Gudgeon pin clearance - bush 0,019 – 0,039
Big-end bearing shells
(repair size)
0,250 – 0,500
Crankshaft
Main journals (ø 1) 82,990 – 83,010
Big-end journals (ø 2) 68,987 – 69,013
X1
X2
X3
ø 1
ø 2
S
ø 4
ø 3
ø 1 ø 2
13. Nectis 207 – 12.2005 – GB A3.15
DIMENSIONS
Type Atmospheric Turbo-charged
Engine block and crank assembly (mm)
Crankshaft main bearing
shells (S1)
2,456 – 2,464
Big-end bearing shells (S2) 1,955 – 1,968
Engine block
Main bearing
N° 1 - 4 (ø 3)
N° 2 - 3 (ø 3)
87,982 – 88,008
87,977 – 88,013
Set of bearing shells - main
bearing
N° 1 - 4
N° 2 - 3
0,064 – 0,095
0,059 – 0,100
Set of big-end bearing shells 0,033 – 0,041
Main bearing shells (repair
size)
Big-end bearing shells (repair
size)
+ 0,250 ; + 0,500
Main bearing with thrust
shoulder (X1)
37,475 – 37,550
Main bearing with thrust
shoulder (X2)
31,730 – 32,280
Thrust bearing shells (X3) 37,28 – 37,38
Crankshaft thrust bearing end
float
0,095 – 0,270
S1 S2
ø 3
X1
X2
X3
14. A3.16 Nectis 207 – 12.2005 – GB
DIMENSIONS
Type Atmospheric Turbo-charged
Cylinder head - valvegear (mm)
Valve
Valve guide housings in
cylinder head
See detail under "valves"
Valves: See detail under "valves"
Clearance between valve
stem and valve guide
0,039 – 0,079
Valve head recess below
cylinder head face
Intake (X)
0,336 – 1,072
Exhaust (X)
0,104 – 0,840
X
15. Nectis 207 – 12.2005 – GB A3.17
DIMENSIONS
Type Atmospheric Turbo-charged
Cylinder head - valvegear (mm)
Valve spring height
Spring unloaded: H 63,50
Spring under a load of:
32,9 daN (H1) 49,02
64,1 daN (H2) 38,20
Injector
Injector protrusion (X) Not adjustable
Camshaft
Camshaft bearing housings:
– Rear bearing diameter C
(3-cylinder engine).
– Rear bearing diameter C
and front bearing diameter A
(4-cylinder engine).
59,222 – 59,248
Camshaft bearing housings:
– 2 intermediate bearings
diameter B and front bearing
diameter A
(3-cylinder engine).
– 3 intermediate bearings
diameter B
(4-cylinder engine).
54,089 – 54,139
Camshaft bearings:
ø 53,995 – 54,045
Bearing internal diameter (ø) 54,083 – 54,147
H H1
H2
X
ø A ø B ø C
ø
ø
16. A3.18 Nectis 207 – 12.2005 – GB
DIMENSIONS
Type Atmospheric Turbo-charged
Cylinder head - valvegear (mm)
Clearance between bearings
and camshaft
0,038 – 0,152
Clearance between bearings
and engine block
0,044 – 0,144
Effective valve lift:
Exhaust (H) 11,02
Intake (H) 10,74
Cam followers
Cam follower housing in
block (ø 1)
16,000 – 16,030
Cam follower external
diameter:
Ø2 15,929 – 15,959
Ø3 15,965 – 15,980
Clearance between cam
follower and housing
0,020 – 0,065
Rockers
Rocker shaft (ø 1) 18,963 – 18,975
Rockers (ø 2) 19,000 – 19,026
Clearance between rockers
and rocker shaft
0,025 – 0,063
Adjusting the valve rockers
Inlet valves x (mm) 0,25 ± 0,05
Exhaust valves x (mm) 0,50 ± 0,05
H
ø 1
ø 2
14 32 50
ø 2
ø 3
ø 1
ø 2
X
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20. Nectis 207 – 12.2005 – GB A3.21
Torque settings
Front chassis / engine link
A. 39 daN.m (4 M20 nuts).
Engine/transmission link
B. 8 daN.m + Frenetanch (242)
(4 screws HM12x125-65).
C. Locating pin.
D. 8 daN.m + Frenetanch (242)
(8 screws HM12x175-50).
103vfm02 Fig. 12
103vfm03 Fig. 13
A
A
B
C
D D
B
C
D D