Pump Citroen C4 2005 2.G Repair Manual

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ENGINE
CHECKING AND SETTING THE VALVE TIMING
Engines: RHY - RHZ
Uncouple, plug and move aside, using tool [7], the fuel delivery pipe(2)and return
pipe (1).
Remove:
- Screws (3), (4)and (6).
- Screw (7).
- The upper timing cover (5).
WARNING: Refit screw (7) equipped with a spacer
(17 mm thick), tighten the
screw (7) to 1,5 ± 0,1 m. daN.
NOTE: The screw (7)is one of the screws securing the coolant pump and is there
for its sealing.
Put the gear lever in 5th gear.
Turn the road wheel to turn the engine in its direction of rotation.
Orient the camshaft pulley in the pegging position, use a mirror if necessary.
Peg the camshaft, using tool [5].
Peg the engine flywheel, using tool [3].
B1EP1A7CB1BP2H3CB1BP2H2CB1BP2R2C
XSARA - XSARA PICASSO
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ENGINECHECKING AND SETTING THE VALVE TIMING
Engines: RHY - RHZ
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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ENGINE
CHECKING AND SETTING THE VALVE TIMING
Engines: RHY - RHZ
Slacken the screw (17)of the tensioner roller (18).
Remove the timing belt (14).
Checks.
IMPERATIVE: Just before refitting, carry out the checks below.
Check that:
- The rollers (18)and (15)turn freely
(without play and without any tight spot).
- The coolant pump pulley (16)turns freely
(without play and without any tight spot).
- There are no traces of oil leaks from the crankshaft and camshaft seals, etc.
- The crankshaft pinion travels freely on the keyway.
Replace defective components if necessary.
Peg the crankshaft pinion (19)by inserting tool [9]on the LH side of the keyway.
B1EP1A8D
B1EP1A9C
XSARA - XSARA PICASSO
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ENGINECHECKING AND SETTING THE VALVE TIMING
Engines: RHY - RHZ
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)anti-clockwise, using tool [2], to attain an overtension of:
98 ± 2 SEEMunits.
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].
B1EP1ABD
B1EP1ACC
XSARA - XSARA PICASSO
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ENGINE
CHECKING AND SETTING THE VALVE TIMING
Engine: RHR
Remove:
- The screw (8).
- The auxiliaries drive pulley (7).
- The crankshaft position sensor (11).
- The lower timing cover (9).
- The target of the crankshaft position sensor (10), using tool [7].
- The lower torque reaction rod.
- The tool [6].
Slacken the screw (12)of the tensioner roller (17).
Remove the timing belt (13).
Checks.
IMPERATIVE: Just before refitting, carry out the checks below.
Check:
- That the rollers (14)and (17)turn freely
(without play and without
any tight spot).
- That the coolant pump pulley (16)turns freely (without play and
without any tight spot).
- That there are no traces of oil leaks from the crankshaft and
camshaftseals, etc.
- That the crankshaft pinion travels freely on the keyway (15).
Replace defective components if necessary.
B1EP1FCC
B1EP1FDC
B1EP1FEC
C4
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ENGINECHECKING AND SETTING THE VALVE TIMING
Engine: RHR
Refitting.
Centre the crankshaft pinion (15), using tool [5].
Reposition the timimg belt on the pulley (18).
Put the tool [4]in place
(tighten moderately).
Reposition the timimg belt, strip «a»well tensioned
in the following order:
- Guide roller (14).
- Crankshaft pinion (15).
- Coolant pump pinion (16).
- Tensioner roller (17).
Remove tools [4]and [5].
Bring the index «d»outside the plate at «c», by
turning the tensioner roller in the direction of the
arrow «b», using a hexagonal spanner at «e».
Tighten screw (12)of the tensioner roller (17)to
2,1 ± 0,2 m.daN.
Lock the flywheel, by means of tool [6].
Refit the auxiliaries drive pulley (7).
Tighten the screw (8)to 7 ± 0,7 m.daN.
Remove tools [6], [2]and [3].
B1EP1FFC
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B1EP1FHC
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C4
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INJECTION
CHECKS: LOW PRESSURE FUEL SUPPLY CIRCUIT
Tools.
[1] Ø 10 mmlow pressure connector: 4215-T
[2]Pressure gauge for testing boost pressure: 4073-T.A Toolkit 4073-T
IMPERATIVE: Respect the safety and cleanliness specific to high pressure diesel injection
engines.
Link tools [1]and [2] in series between the fuel high pressure pump and the fuel filter.
ESSENTIAL: Check that the tool [2] is clean.
Check the negative pressure according to the table below:
Vacuum Observations
10 ± 5 cmHgEngine driven by the starter motor
20 ± 5 cmHgEngine running under full load
60 ± 5 cmHgSupply circuit obstructed
(full tank strainer, piping, fuel filter)
B1BP2WHC
Engines: 8HX - 8HZ
XSARA
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INJECTION
CHECKS: LOW PRESSURE FUEL SUPPLY CIRCUIT
Tools.
[1] Ø 10 mmlow pressure connector: 4215-T
[2]Pressure gauge for testing boost pressure: 4073-T.A Toolkit 4073-T
IMPERATIV: Respect the safety and cleanliness specific to high pressure diesel injection
engines.
Remove the air filter duct.
Link tool [1]in series, downstream of the injectors, between the fuel high pressure pump and the
fuel filter at «a»and «b».
WARNING: Any checking of pressure downstream of the fuel filter is prohibited.
Switch on the ignition.
Check the pressure :
Vacuum measured by the pressure gauge [2]:
Vacuum Observations
10 ± 0,5 cmHgEngine driven by the starter motor.
20 ± 0,5 cmHgEngine running under full load
60 ± 0,5 cmHgSupply circuit obstructed
(full tank strainer, piping, fuel filter)
B1CP0GFD
Engines: 9HX - 9HY - 9HZ
C4
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INJECTION
CHECKS: LOW PRESSURE FUEL SUPPLY CIRCUIT
Tools.
[1] Ø 10 mm low pressure connector: 4215-T
[2] Pressure gauge for testing boost pressure: 4073-T.A Toolkit 4073-T
IMPERATIVE: Respect the safety and cleanliness specific to high pressure diesel injection
engines.
Remove the air filter duct.
Link tool [1]in series, downstream of the injectors, between the fuel high pressure pump and the
fuel filter at «a»and «b».
WARNING: Any checking of pressure downstream of the fuel filter is prohibited.
Switch on the ignition.
ESSENTIAL: Check that the tool [2] is clean.
Check the negative pressure according to the table below:
Vacuum Observations
10 ± 05 cmhgEngine driven by the starter motor
20 ± 20 cmhgEngine running under full load
60 ± 05 cmhgSupply circuit obstructed
(full tank strainer, piping, fuel filter
B1BP2PHC
Engines: 9HZ - 9HY
XSARA PICASSO
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INJECTION
CHECKS: LOW PRESSURE FUEL SUPPLY CIRCUIT
Tools.
[1] Ø 10 mmlow pressure connector: 4215-T
[2]Pressure gauge for testing boost pressure: 4073-T.A Toolkit 4073-T
IMPERATIVE: Respect the safety and cleanliness specific to high pressure diesel injection
engines.
Link tools [1] and [2]in series between the fuel high pressure pump and the fuel filter.
ESSENTIAL: Check that the tool [2] is clean.
Normal vacuum values.
Engine driven by the starter motor: 10 ± 0,5 cmHg.
Engine running under full load: 20 ± 10 cmHg.
Abnormal vacuum values.
Supply circuit obstructed
(full tank strainer, piping, fuel filter): 60 ± 20 cmHg.
B1BP33RD
Engine: RHR
C4
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