Citroen XSARA PICASSO 2005 1.G Workshop 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].
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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.
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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.
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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].
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ENGINE
CHECKING AND SETTING THE VALVE TIMING
Engines: RHY - RHZ
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 SEEMunits.
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 SEEMunits.
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.
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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.
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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).
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ENGINECHECKING THE VALVE TIMING
Engine: RHR
Checks.
Turn the crankshaft in the normal direction of rotation.
Line up the black markings «b»and «c»on the chain with the teeth «a»and «d» of the camshaft drive
pinions
(40 turnsof the camshafts maximum).
IMPERATIVE: If it is impossible to line up the markings on the chain with the camshaft drive
pinions, repeat the setting of the camshafts
(see operation: removing-refitting camshafts).
Peg:
- The crankshaft, using tool [2].
- The camshaft pinion, using tool [3].
Remove tools [1]and [3].
Complete the refitting.
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ENGINE
CHECKING AND SETTING THE VALVE TIMING
Engine: RHR
Tools.
[1]Kit of plugs: (-).0188.T
[2]Double flywheel setting peg: (-).0188.X
[3]Camshaft setting peg: (-).0188.M
[4]Belt clamp: (-).0188.AD
[5]Pinion centrer: (-).0188.AH
[6]Flywheel lock: (-).0188.F
[7]Pulley(-).0188.P
IMPERATIVE: Respect the safety and cleanliness requirements specific to High pressure Diesel injection (HDi) engine versions.
Removing.
Slacken the front RH wheel bolts.
Raise and support the front RH side of the vehicle.
Disconnect the negative terminal of the battery.
Remove:
- The under-engine sound-deadening.
- The front RH wheel.
- The front RH splash-shield.
- The engine cover.
Remove the auxiliaries drive belt
(see corresponding operation).
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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].
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