2000 Citroen C5 fuel pressure

Downloaded from www.Manualslib.com manuals search engine INJECTION
Idling - antipollution 111
Petrol injection 112
Emission standards 113 - 119
Prohibited operations : HDi 120 - 121
Safety requirements : HDi 122 - 123
Checking the fuel supply circuit 124 - 125
Checking the air supply circuit 126 - 130
Exhaust gas recycling 131 - 134
Checking turbo pressure 135 - 138
Features of injection systems 139 - 168
IGNITION
Sparking plugs 169
CLUTCH-GEARBOX
Speedometers 170
Clutch specifications 171 - 172
Gearbox and tyre specifications 173 - 174
BE4/5 gearbox controls 175 - 183
ML/5 gearbox controls 184 - 192
AL4-4HP20 gearbox controls 193 - 203
Driveshafts 204
AXLES-SUSPENSION
Wheels and tyres 205 - 211
Axle geometry 212 - 214
Front and rear axle 215 - 216Suspension 217 - 220
Steering specifications 221 - 222
BRAKES
Brake specifications 223 - 228
Handbrake adjustment 229
Bleeding and filling braking system 230 - 233
HYDRAULICS
Specifications 234 - 237
Suspension spheres 238 - 240
ELECTRICAL
Starter motors 241
Alternators 242
Charging circuit 243
AIR CONDITIONING
Quantities in R 134a aircon system 244
Special features 245
Pollen filter 246
Dryer cartridge 247 - 249
Checking oil level 250 - 251
Checking pressures 252
Air conditioning : 6FN-RFN-RLZ 253
Air conditioning circuit : XFX 254
Air conditioning circuit : RHY-RHZ 255
Air conditioning circuit : 4HX 256
INDEX
GENERAL
Identification of vehicles 1 - 4
General : Dimensions 5 - 6
Weight specifications 7 - 8
Towing specifications 9 - 10
Lifting / supporting the vehicle 11 - 14
Capacities 15 - 18
Lubricants 19 - 32
ENGINES
Engine specifications 34 - 58
Cylinder head marking / tightening
6FZ-RFN-RLZ 38
XFX 51 - 52
RHY-RLZ 55 - 56
4HX 57 - 58
Auxiliaries drive belt 59 - 68
Checking and setting valve timing 69 - 90
Power unit suspension 91 - 95
Exhaust system 96 - 100
Cooling system 101 - 107
Checking oil pressures 108
Oil filter 109
Filling and bleeding engine coolant 110

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74
CHECKING AND SETTING THE VALVE TIMING
Engine : XFX
TOOLS
[1] Camshaft setting pegs(-).0187.B
[2] Crankshaft setting peg(-).0187.A
[3] Fuel pressure take-off union4192-T
[4] Belt retaining pin(-).0187.J
[5]Exhaust camshaft hubs immobilising tool(-).0187.F
[6] Inlet camshaft hubs immobilising tool(-).0187.F
Remove the auxiliaries drive belt (See corresponding operation).
Checking the valve timing setting.
Remove :
- The power steering pulley.
- The roller / dynamic tensioner assembly(11).
- The crankshaft pulley (12).
- The upper timing covers (9)and (10).
- The lower timing cover (13).
B1BP2BKC

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82
CHECKING AND SETTING THE VALVE TIMING
Engines : RHY - RHZ
Setting the valve timing (continued).
- Retighten the screws (21)by hand.
- Turn the pinion(24)(clockwise) to the bottom of the buttonhole.
- Refit the belt on the crankshaft (25).
- Hold the belt, using tool [4].
Reposition the timing belt, keeping the belt tight at «a»,
in the following order :
- Guide roller (23).
- Fuel high pressure pump pinion (26).
- Camshaft pinion (24).
- Water pump pinion (18).
- Tensioner roller (20).
NOTE :If needed, slightly turn the pinion(24)anti-clockwise (not by
more than one tooth).
- Remove the tool [4].
B1EP154CB1EP155DB1EP153D

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88
CHECKING AND SETTING THE VALVE TIMING
Engine : 4HX
Setting the valve timing (continued).
Refit
- Retighten the screws (25) by hand.
- Turn the pinion (29)(clockwise)to the bottom of the buttonhole.
- Refit the belt on the crankshaft (28).
- Hold the belt, using tool[4].
- Reposition the timing belt, keeping the belt tight at «a», in the following order :
- Guide roller (27).
- Fuel high pressure pump pinion (30).
- Camshaft pinion (29).
- Water pump pinion (22).
- Tensioner roller (24).
NOTE : If needed, slightly turn the pinion (29)anti-clockwise(not by more
than one tooth).
- Remove the tool [4].
B1EP15CCB1EP15DDB1EP15BD

Downloaded from www.Manualslib.com manuals search engine 112
INJECTIONEmission standard Engine type
Make
Injection type
PETROL INJECTION
Air temperature sensor resistive
value (ohms)
Petrol
Fuel pressure (bars)
Overspeed cut-off (rpm)
Injection cut-in during
deceleration (rpm)
Injector resistive value (ohms)
Engine coolant temperature
sensor resistive value (ohms)
Idling actuator or stepper motor
resistive value (ohms)
1.8i 16V 2.0i 16V 3.0i V6
6FZ RFN RLZ XFX
L4 - IF/L5 IF/L5 L4 IF/L5
SAGEM MAGNETTI MARELLI SIEMENS BOSCH
S2000 MM. 48P SIRIUS 81 ME 7.4.6.
3.5 3.5 5 3.5
6520
1100
12.2 14.5 1.88 16
3 800 at 10°C 2500 at 20° C 800 at 50°C 230 at 90° C
Stepper motor : 53
3 800 at 10°C 2500 at 20° C 800 at 50°C 230 at 90° C

Downloaded from www.Manualslib.com manuals search engine 120
INJECTION
PROHIBITED OPERATIONS: HDi DIRECT INJECTION SYSTEM
Engines : RHY - RHZ - 4HX
Cleaning.
- The use of high pressure cleaners is prohibited.
- Do not use compressed air.
Fuel supply circuit.
- Required fuel : diesel.
Electric circuit.
- Swapping injection ECUs Between two vehicles will render it impossible to start either vehicle.
- It is forbidden to supply a diesel injector with 12 volts.
High pressure fuel pump.
Do not separate the following components from the high pressure fuel pump (5):
- Sealing ring (b)(no replacement parts).
- High pressure outlet connector (a)(will cause a malfunction).
PS : HDi = High pressure diesel injection.
B1HP19LC

Downloaded from www.Manualslib.com manuals search engine 122
INJECTION
SAFETY REQUIREMENTS : HDi DIRECT INJECTION SYSTEM
Engines : RHY - RHZ - 4HX
SAFETY REQUIREMENTS
Preamble.
All interventions on the injection system must be carried out to conform with the following requirements and regulations :
- Competent health authorities.
- Accident prevention.
- Environmental protection.
WARNING :Repairs must be carried out by specialised personnel informed of the safety requirements and of the precautions to be taken.
Safety requirements.
IMPERATIVE : Take into account the very high pressures in the high pressure fuel circuit (1350 bars), and respect
the requirements below :
- No smoking in proximity to the high pressure circuit when work is being carried out.
- Avoid working close to flame or sparks.
Engine running :
- Do not work on the high pressure fuel circuit.
- Always stay clear of the trajectory of any possible jet of fuel, which could cause serious injuries.
- Do not place your hand close to any leak in the high pressure fuel circuit.
After the engine has stopped, wait 30 secondsbefore any intervention.
NOTE :This waiting time is necessary in order to allow the high pressure fuel circuit to return to atmospheric pressure.

Downloaded from www.Manualslib.com manuals search engine 123
INJECTION
SAFETY REQUIREMENTS : HDi DIRECT INJECTION SYSTEM
Engines : RHY - RHZ - 4HX
CLEANLINESS REQUIREMENTS.
Preliminary operations
IMPERATIVE : The technician should wear clean overalls.
Before working on the injection system, it may be necessary to clean the apertures of the following sensitive components :
(refer to corresponding procedures).
- Fuel filter.
- High pressure fuel pump.
- Third piston deactivator.
- High pressure regulator.
- High pressure sensor.
- High pressure fuel injection common rail.
- High pressure fuel pipes
- Diesel injector carriers.
IMPERATIVE : After dismantling, immediately block the apertures of the sensitive components with plugs, to avoid the entry of impurities.
Work area.
- The work area must be clean and free of clutter.
- Components being worked on must be protected from dust contamination.