2005 Citroen XSARA PICASSO valve fuel

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ENGINECHECKING AND SETTING THE VALVE TIMING
Engines: RHY - RHZ
Remove:
- Tools [3]and [5], Screw (7)and the spacer.
Refit:
- The lower, intermediate and upper covers (5).
- Screw (7), tighten to 1,5 ± 0,1 m.daN.
- Screws (3), (4)and (6).
- The bracket (13).
Screws (11), tighten to 6,1 ± 0,5 m.daN.
The nut (12), tighten to 4,5 ± 0,5 m.daN.
Fit the bearing shell (10).
Take away the workshop hoist.
Clip the fuel delivery and return pipes.
Remove the tool [7].
Couple:
- The fuel delivery pipe (12).
- The fuel return pipe (1).
- Coat the screw (8)with loctite FRENETANCH.
Refit the tool [6]and the screw (8)with the washer (22), tighten to 7 ± 0,2 m.daN
and angular tighten to A= 60°±5°.
Refit the torque reaction rod on the lower engine support.
Remove the tool [6].
Reposition and reclip the cooling hose.
Complete the refitting of components in reverse order to removal.
B1EP1A7CB1BP2R4CB1EP1ADC
XSARA - XSARA PICASSO
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ENGINE
CHECKING THE VALVE TIMING
Engine: RHR
Tools.
[1] Kit of plugs: (-).0188.T
[2] Double flywheel setting peg: (-).0188.X Toolkit 0188-T
[3]Camshaft setting peg: (-).0188.M
IMPERATIVE: Respect the safety and cleanliness requirements specific to High pressure Diesel
injection (HDi) engine versions.
Remove the engine cover and the battery.
Disconnect the negative terminal of the battery.
Raise and support the front of the vehicle.
Remove the under-engine sound-deadening and the front RH splash-shield.
Uncouple, plug and move aside, using tool [1], the fuel supply and fuel return pipes..
Suspend the engine, using a workshop hoist.
Remove the engine support bracket and the engine support.
Move aside the electrical harness (1).
Remove:
- The camshaft position sensor.
- The inlet cylinder head cover (2).
- The upper timing cover screws.
- The upper timing cover (3).
B1EP1GFC
C4
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ENGINE
274
CHECKING AND SETTING THE VALVE TIMING
Engine: RHR
Uncouple, plug and move aside, using tool [7],
the fuel delivery pipe (1)and the fuel return pipe (2).
Suspend the engine, using a workshop hoist.
Remove the bracket (3)and the RH engine
support (4).
Move aside the electrical harness (5).
Remove:
- The upper timing cover screws.
- The upper timing cover (6).
Rotate the engine by means of the auxiliaries drive
pulley.
Orient the camshaft pinion in the pegging position,
use a mirror if necessary.
Peg the camshaft, using tool [3].
Peg the engine flywheel, using tool [2].
Lock the flywheel, using tool [6].
B1BP351C
B1EP1FAC
B1EP1FBC
B1BP31EC
C4
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INJECTION
CHECKS: LOW PRESSURE FUEL SUPPLY CIRCUIT
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
Fuel supply pressure Fuel return pressure Checks
Between 3and 3.5bar0.7 ± 0.2 bar Check the condition of the diesel filter
More than 3.5bar Less than 0.7barCheck the low pressure regulator incorporated
in the filter
(locked shut): replace.
More than 3.5bar More than 0.7barCheck the fuel return circuit
(pipe pinched or trapped…)
Between 0.8and 1.5bar Less than 0.7barCheck the fuel supply circuit:
- Booster pump (low pressure), piping
Impossible to start the engine:Check: diesel injector return flow
(table below).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).Uncouple the diesel injector return pipe.
Check: Observe:
The flow should be drop by drop Diesel injector functioning correctly
Excessive fuel return Diesel injector locked shutEngines: RHY - RHZ (continued)
XSARA PICASSO
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