lock Citroen C2 2004 1.G Repair Manual

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ENGINECHECKING AND SETTING THE VALVE TIMING
NOTE: Checking and setting the valve timing on engines: RHYRHZ N° ⁄ RPO 9127
See Mechanic’s Handbook 2003: pages 193 to196
Tools.
[1]
Belt tension measuring equipment :4122T
[2]
Tension lever:().0188.J2
[3]
Engine flywheel peg: ().0188.Y
[4]
Belt clamp: ().0188.AD
[5]
Camshaft pulley peg: ().0188.M
[6]
Engine flywheel lock: ().0188.F
[7]
Set of blocking plugs:().0188.T
[8]
Pulley extractor:().0188.P
[9]
2 mm dia.peg: ().0188.Q2Removing.
IMPERATIVE: Respect the safety and cleanliness requirements
that are specific to high pressure diesel injection (HDi) engines.
Undo the front RH wheel bolts.
Raise and support the vehicle on the front RH side.
Disconnect the battery negative terminal.
Remove:
The underengine sounddeadening.
The front RH wheel.
The front RH splashshield. The engine cover.
Unclip and move aside the cooling hose.
Remove the accessories drive belt
(see corresponding operation).
XSARA XSARA PICASSO
Engines: RHY RHZ N° RPO 9128 #

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ENGINECHECKING AND SETTING THE VALVE TIMING
Engines: RHY RHZ N° RPO 9128 #
Remove:
The fixings of the pipe linking the power steering pump with the rotary valve.
The clutch lower closing plate.
Lock the engine flywheel, using tool
[6].
Remove the screw (8).
Refit the screw (8)without its thrust washer.
Remove:
The accessories pulley
(9), using tool[8].
Tool [6].
The lower torque reaction rod.
Support the engine by means of a workshop hoist.
Remove:
The bearing shell fitting
(10).
The nut (12).
Screws (11).
The bracket (13).
NOTE:Lift then lower the engine with the workshop hoist, to have access to the
timing cover fixing screws.
Remove:
The intermediate timing cover.
The lower timing cover.
B1CP04BCB1BP2R3CB1BP2R4C
XSARA XSARA PICASSO

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ENGINECHECKING AND SETTING THE VALVE TIMING
Engines: RHY RHZ N° RPO 9128 #
Reposition the timimg belt, belt at «a»well tensioned, in the following order:
Fuel high pressure pump pulley
(21).
Guide roller
(15).
Crankshaft pinion
(19).
Coolant pump pinion
(16).
Tensioner roller
(18).
Position tool
[1]on the belt at «a».
Remove tools
[4]and [9].
Turn the tensioner roller
(18)anticlockwise, using tool [2], to attain an overtension of:
98 ± 2 SEEM units.
Tighten screw
(17)of the tensioner roller to 2,5 ± 0,2 m.da N.
Lock the flywheel by means of tool
[6].
Tighten the accessories drive pulley screw
(8)to 7 ± 0,7 m.da N.
Remove tools
[1], [3], [5] and [6].
Rotate the crankshaft eight times in the normal direction of rotation.
Peg:
The crankshaft, using tool
[3].
The camshaft drive pulley, using tool
[5].
B1EP1ABDB1EP1ACC
XSARA XSARA PICASSO

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ENGINE
CHECKING AND SETTING THE VALVE TIMING
Engines: RHY RHZ N° RPO 9128 #
Lock the engine flywheel, using tool [6].
Slacken:
The accessories drive pulley
(8).
The screw (17) of the tensioner roller (18).
Fit the tool [1].
Turn the tensioner roller, using tool [2], to attain a tension of:54 ± 2 SEEM units.
Tighten screw (17)of the tensioner roller (18)to 2,5 ± 0,2 m.daN.
Remove tool [1].
Fit tool [1].
The tension value should be:
54 ±3 SEEM units.ESSENTIAL: If the value is incorrect, recommence the operation.
Remove tools [1], [3], [5]and [6].
Rotate the crankshaft two times in the normal direction of rotation.
Peg:
The crankshaft, using tool
[3].
The camshaft drive pulley.
IMPERATIVE:If the pegging is not possible, recommence the operation.
B1EP1ACC
XSARA XSARA PICASSO

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INJECTION
SAFETY REQUIREMENTS: HDi DIRECT INJECTION SYSTEM
Engines: HDi ALL TYPES
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.
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.

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INJECTION
XSARA PICASSO CHECKS: LOW PRESSURE FUEL SUPPLY CIRCUIT
Engines: RHY RHZ (continued)
Checks on pressure: dynamic.Engine running, at idle (normal functioning):
Fuel supply pressure shown by the pressure gauge [3] = 2 ± 0.4 Bar. Fuel return pressure shown by the pressure gauge [3] = 0.7 ± 0.4 Bar.
Abnormal functioning
Impossible to start the engine:
Fuel supply pressure less than 0.8 Bar:
Check the low pressure regulator incorporated in the filter (locked open). Check the high pressure pump distribution valve (locked shut).
Check: diesel injector return flow.(Table below)
Uncouple the diesel injector return pipe.
Fuel supply pressure Fuel return pressure Checks
Between 3and 3.5 Bar 0,7 ± 0,2 BarCheck the condition of the diesel filter
More than
3.5 Bar
More than 3.5 Bar
Less than 0.7 Bar
More than 0.7 Bar
Check the low pressure regulator incorporated in
the filter (locked shut): replace.
Check the fuel return circuit
(pipe pinched or trapped…)
Between 0.8 and 1.5 BarLess than 0.7 BarCheck the fuel suppy circuit:
Booster pump (low pressure), piping.
Check:
Observe:
The flow should be drop by drop.
Diesel injector functioning correctly.
Excessive fuel return.
Diesel injector locked shut.

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INJECTION
CHECKS: EXHAUST GASES RECYCLING CIRCUIT
Engines: 8HX 8HW
Engines: 8HV 8HY
Tools.
[1]
Manual pressurevacuum pump: FACOM DA 16
IMPERATIVE: Respect the safety and cleanliness specific to high pressure diesel
injection (HDi) engines.
EGR v
alve.Connect tool [1]on the capsule takeoff (2).
Apply a vacuum of approx.0,6 barseveral times to activate the rod «a».
In abruptly suppressing the vacuum, the valve should click and lock itself back on its seating.
Regulation electrovalve (EGR).(Engine:8HX8HW).Check to be performed between the electrovalve (1)and the EGR valve (2).
Link the tool [1]in series, between the electrovalve (1)and the capsule (2).
Compare the values noted with those in the table below.
Regulation electrovalve (EGR).(Engine:8HV8HY).Check to be performed between the electrovalve (2)and the EGR valve (1).
Link the tool [1] in series, between the electrovalve (2)and the capsule (1).
Compare the values noted with those in the table below.
Engine speed (rpm) Vacuum value
780 0,5
2500 0
B1HP15GD
B1HP1K6D
C2 C3

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CLUTCH
GEARBOX
TRANSMISSION
CLUTCH CONTROLS: FEATURES / CHECKS AND ADJUSTMENTS
Engines: KFW NFU 6FZ RFN RFS 8HX 9HZ 9HY WJY RHY RHZ
Refitting.
Place the pedal in the high position (contact at “a”).
Attach the cable yoke on the hook of the clutch pedal.
Fit a new clip
(3).
Fit the endpiece (4)to the bulkhead (fit with G6grease).
Clip the endpiece (5)on the gearbox.
Couple the cable to the lever (1).
Depress the clutch cable several times to lodge the cable in place.
Check that the endpiece (4) is correctly lodged on the bulkhead.
Check the operation of the automatic adjusting system.
After fitting the cable, pull the clutch lever in the inverse direction
(direction F), the lever should
move back when pulled by hand.
Press the clutch pedal very lightly and repeat the same operation. The lever should not move
back.
WARNING:If a system blockage is detected when checking, or if the pedal has been removed,
the pedal position must be adjusted. The correct positioning of the pedal is obtained by the
angular displacement of the stop supports
"a"and "b".
B2BP03CD
XSARA XSARA PICASSO
«PUSH» clutch
«PULL» clutch
B2BP03DD

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CLUTCH
GEARBOX
TRANSMISSION
RECOMMENDATIONS PRECAUTIONS: MA PILOTED MANUAL GEARBOX
Operations on electrical components.Do not disconnect:
The battery when the engine is running.
The ECU with the ignition switched on.
The clutch and gearbox actuators with the ignition switched on.
When carrying out electrical checks: The battery must be correctly charged.
Never use a voltage source higher than 16V.
Never use a lamp to supply an actuator directly.
Before disconnecting connector, check: The condition of the various contacts (for deformation, corrosion, etc).
The presence and the status of the mechanical unlocking.
Driving the vehicle.
IMPERATIVE:
Never move the vehicle with the ignition switched off.
Never push the vehicle to attempt to start it
(impossible with a piloted
manual gearbox).
Towing.
Conditions for towing.
It is necessary to lift the front of the vehicle to tow it, after having
positioned the gear lever in neutral. If there is a gearbox fault or
malfunction, the vehicle can remain immobilised depending on theseriousness of the fault.
If a gear is engaged,the conditions for immobilisation of the
vehicle are:
Combustion engine stopped (the engine should not be started).
The clutch is open (clutched).
In these conditions are met, you can lift the front of the vehicle to tow it.
If it should not be possibe to lift the front of the vehicle, there are
ways to unblock it:
Engage «N», using a diagnostic tool.
Engage «N», without using a diagnostic tool.
Engines: HFX KFV NFU 8HX
C2

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CLUTCH
GEARBOX
TRANSMISSION
RECOMMENDATIONS PRECAUTIONS: MA PILOTED MANUAL GEARBOX
Engaging of «N», using a diagnostic tool.
Preliminary operations:
Battery voltage higher than 12.5 volts.
Ignition switched on.
Connect the diagnostic tool to the vehicle’s diagnostic socket.
From the diagnostic tool menus, select:
«DIAGNOSIS»
MA type piloted manual gearbox.
Actuator test.
Gearbox actuator test.
Gear engagement test.
N(neutral).
NOTE:The letter «N»should appear on the instrument panel.
If not, see the following solution:
Engaging of
«N», without using a diagnostic tool.
Engaging of «N», without using a diagnostic tool.
In this configuration, the gearbox actuator is blocked, gear engaged.
NOTE:This recovery solution is to be used solely in a case where the
attempt to make the gearbox actuator engage b via the diagnostic toolhas failed.
Engines: HFX KFV NFU 8HX
C2