NFU Citroen C2 2004 1.G Service Manual

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ENGINECHECKING AND SETTING THE VALVE TIMING
Engine: NFU
Setting the valve timing.
Remove the tools [1], [2], [3] and [4].
Rotate the engine by 4 turnsin the normal direction (do not turn backwards). Peg the flywheel [2].
Loosen the six screws (5), while ensuring there is still a slight amount of friction with the pulley.
Peg the camshaft hubs using pegs [3]and [4].
WARNING: In certain cases, it may be necessary to slightly turn the camshaft using the hub fixing screw.
Fit the tool [1].
Loosen the tensioner roller screw (2).
Rotate the roller (2)(using tool [5])in an anticlockwise direction to obtain:37 SEEM units.
Tighten the tensioner roller screw (2)to 2 m.daN.
Tighten the six pulley screws (1)to 1m.daN.
Remove the tools.
XSARA

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ENGINEVALVE CLEARANCE SETTINGS
The valve clearances must be checked with the engine cold
Inlet
Petrol all types(Except16VNFU)
NFU
Petrol 16V all types
1.4 HDi
1.4 HDi 16V
Diesel 2.0 HDi
Diesel all types(Except Diesel 1.4 HDi
1.4 HDi 16V
2.0 HDi)0,20 mm ± 0,05Exhaust
0,40 mm ± 0,05
Hydraulic adjustment 1 mm ± 0,05
1 mm ± 0,05
Rocking
Adjust
1
1
3
3
4
4
2
24
4
2
2
1
1
3
3
Inlet

Adjust Rocking
Valves fully
openAdjust
1
3423 4
4
2
2
1
1
3
Fully open (Exhaust)
POSSIBLE PROCEDURES
For engines with 4 cylinders in a line (1342 )
Engines without hydraulic
adjustment: the clearance (J)should be checked opposite the
cam.
B1DP13QC
0,15 mm ± 0,08
0,30 mm ±0,08

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227
CHECKING THE OIL PRESSURE
To be read with the Petrol and Diesel correspondence tables
Plaque engine XFX KFV NFU 8HX
Temperature (°C) 90°C
Pressure (Bars) 3 4 1,3 3,5
Rpm 2000 4000 1000 4000
Tools (Kit 4103T)
2279T.Bis X X X X
4103T.B X X X X
7001T X X X1503.JX
C3 C3 Pluriel
Plaque engineHFXKFVKFUNFU8HX8HW8HV 8HY
Temperature (°C) 90°C
Pressure (Bars) 3 4 1,3 3,5
Rpm 2000 4000 1000 4000
Tools (Kit 4103T)
2279T.Bis X X X X X X X X
4103T.B X X X X X X X X
7001T X X X X
1503.JXX XX
NOTE:The oil pressure
should be checked with the
engine hot, after the oil level
has been checked.
C2 C3 C3 PLURIEL

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ENGINECHECKING THE OIL PRESSURE
To be read with the Petrol and Diesel correspondence tables
XSARA
Plaque engine KFW NFU RFN RFS 8HZ WJY RHY RHZ
Temperature (°C) 90°C 80°C 90°C
Pressure (Bars) 3 4 1,5 5,1 2 5,5 1,3 3,5 1,8 4,5 2 4
Rpm 2000 4000 1000 4000 1000 4000 1000 4000 1000 4000 1000 4000
Tools (Kit 4103T)
2279T.BisXXXXXX XX
4103T.B X X X X X X X X
7001T X
4202T X X X
5709T.B2 X
1503JX
4156TX
7017T.X23X
NOTE:
The oil pressure should be checked with the engine hot, after the oil level has been checked.
XSARA

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ENGINEOIL FILTERS
TU all types ET3J4 TU all types EW XU
1.1i 1.4i 1.4i 16V 1.6i 1.6i 16V 1.8i 16V 2.0i 16V
HFX KFV KFW KFU NFV (1) NFU 6FZ RFN RFS
C2
1109 R7
1109 R7 C3 1109 X4
C3 Pluriel 1109 R7
Xsara 1109 R7 1109 T1 1109 N3
Xsara Picasso 1109 T1 1109 T1
DV4TD DV4TED4 DV6TED4 DW8 DW10
1.4 HDi1.4 HDi 16V1.6 HDi 16V 1.9 D2.0 HDi
8HX8HW8HZ8HV8HY 9HZ 9HY WJY RHY RHZ
C21109 S5
C31109 S51109 S5
C3 Pluriel 1109 S5
Xsara 1109 S5 1109 T1Xsara Picasso1109 S5 1109 S5 1109 T1
PURFLUX= 1109 R7 – 1109 N3 – 1109 T1
MAHLE= 1109 S5(1) = NFV (90 hp = 1109 T1) et NFV (100 hp = 1109 R7)
FILTRAUTO= 1109 X4

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INJECTION1.1iHFX L4/IFL5MAGNETTI MARELLI 48P
1.4i
KFW KFV L4/IFL5SAGEM S2000
1.6i 16V
NFU L4BOSCH M 7.4.4.
1.1i
HFX L4/IFL5MAGNETTI MARELLI 48P
1.4i
KFW L4/IFL5SAGEM S2000
1.4i 16V
KFU L5MAGNETTI MARELLI 6LP850
1.6i 16VNFU L4BOSCH M 7.4.4.
1.4i
KFWL4/IFL5SAGEM S2000
8501.6iNFUL4BOSCH M.7.4.4.
2.0i
RFNL4MAGNETTI MARELLI MM 48P2
2.0i 16V
RFSL3M.MARELLI 1AP10
1.6i
NFVL4BOSCH M7.4.4.
1.8i
6FZ L4SAGEM S2000700
2.0i 16VRFN L4/IFL5M. MARELLI 6LP850
C2 C3 C3 PLURIEL XSARA PICASSO IDLING DEPOLLUTION
Vehicles Engine typeEmission
standardMake Injection type% Content
CO CO2
Idling speed
(± 50 rpm)
Man.
gbox Auto. gbox : N
gear engaged
C2
C3 PLURIEL
C3
XSARA
XSARA
PICASSO
< 0,5
> 9

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INJECTION
Emission standard Engine type
Injection make
and type
PETROL INJECTION
Air temperature sensor
resistive value (ohms)
C2
M. MARELLI 48P2 SAGEM S2000 BOSCH M.7.4.4.
Fuel pressure (bars)
Overspeed cutoff (rpm)
Injector resistive value (ohms)
Engine coolant temperature
sensor resistive value (ohms)
Idling actuator or stepper
motor resistive value (ohms)
HFX KFV NFU
L4/IFL5 L4/IFL5 IFL5
1.1i 1.4i 1.6i 16V
333
5500 5500 6600
14,5 12,2 14,5
Stepper motor: 53 3 800 at 10°C 2500 at 20° C 800 at 50°C 230 at 90° C
3 800 at 10°C 2500 at 20° C 800 at 50°C 230 at 90° C
C2

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INJECTION
Emission standard Engine type
Injection make
and type
PETROL INJECTION
C3 C3 PLURIEL
Air temperature sensor
resistive value (ohms)
C3 PLURIEL
C3
M. MARELLI
48P2M. MARELLI
6LP SAGEM
S2000BOSCH
M.7.4.4.SAGEM
S2000BOSCH
M.7.4.4.
Fuel pressure (bars)
Overspeed cutoff (rpm)
Injector resistive value (ohms)
Engine coolant temperature
sensor resistive value (ohms)
Idling actuator or stepper
motor resistive value (ohms)
HFX
K’L4INFL4/IFL5 L5 K’L4INFL4/IFL5 L4 L4/IFL5 IFL5
1.1i 1.4i 1.4i 16V 1.6i 16V
1.6i 16V
1.4i
KFU
KFV NFU KFV NFU
3,53,5
3,5
3,5 3,5 3,5
14,5 14,5 14,5
12,214,5 14,5
5500
5800
5500
5500
5500 5800
Stepper motor:53 3800 at 10° C 2 500 at 20° C 800 at 50° C 230 at 90° C
3800 at 10° C 2 500 at 20° C 800 at 50° C 230 at 90° C

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INJECTION
Emission standard Engine type
Injection make
and type
PETROL INJECTION
XSARA XSARA PICASSO
Air temperature sensor
resistive value (ohms)
XSARA PICASSO
XSARA 2
SAGEM
S2000M. MARELLI
6LP BOSCH
M.7.4.4.BOSCH
M.7.4.4.SAGEM
S2000M. MARELLI
6LP
Fuel pressure (bars)
Overspeed cutoff (rpm)
Injector resistive value (ohms)
Engine coolant temperature
sensor resistive value (ohms)
Idling actuator or stepper
motor resistive value (ohms)
KFW
L4/IFL5/L5 L4/IFL5 L4/IFL5 L4 IFL5L4/IFL5
1.4i 1.6i 16V 2.0i 16V 1.6i
2.0i 16V
1.8i 16V
RFN
NFU NFV 6FZ RFN
3,53,5
3
3 3,5 3,5
14,5 14,5 14,5
14,512,2 14,5
5500
5700
6000
5800
5500 6000
Stepper motor:53 3800 at 10° C 2 500 at 20° C 800 at 50° C 230 at 90° C
3800 at 10° C 2 500 at 20° C 800 at 50° C 230 at 90° C

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1.1iHFX
FR7 DE RFN 58 LZ RC 8 YLC
C2 1.4i KFV
1.6i 16V NFU FR7 ME 0,9 ± 0,1 RFN 58 HZ
1.1i HFX
FR7 DERFN 58 LZ RC 8 YLC
1.4i KFV
C3 1.4i 16V KFU VR8 SE 0,9 ± 0,05
1.6i 16V NFU FR7 ME RFN 58 HZ
C3 1.4i KFV FR7 DE RFN 58 LZ RC 8 YLC
PLURIEL1.6i 16VNFUFR7 MERFN 58 HZ
0,9 ± 0,05 0,9 ± 0,05 2.5 ± 0,2
1.4iKFWFR7 DE0,9 ±0,1 RFN 58 LZ RC 8 YLC mda.N
XSARA 1.6i 16V NFU FR7 ME RFN 58 HZ
2.0i 16V RFN FR8 ME RFN 52 HZ REC 9 YCL
RFSFR6 DE RFN 62 LZ
1.6i90 hp
NFVRFN 58 LZ
XSARA100 hpFR7 DE RC 8 YLC
PICASSO 1.8i 16V 6FZ
FR8 ME0,9 ± 0,1
RFN 52 HZ REC 9 YCL
2.0i 16V RFN
SPARKING PLUGS ALL TYPES
Vehicles
BOSCH Engine
typeEYQUEM
CHAMPION Electrode
gap settingTightening
torque
IGNITION
Electrode
gap settingElectrode
gap setting