2005 Citroen C4 Valve timing

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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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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.
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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].
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ENGINE
CHECKING AND SETTING THE VALVE TIMING
Engine: RHR
Refitting.
Rotate the crankshaft ten times
(in the direction of rotation of the engine).
Peg the crankshaft, using tool [2] and the camshaft drive pinion, using tool [3].
Lock the flywheel, using tool [6].
Slacken the screw (8)of the auxiliaries drive pulley (7) and the screw (12)of
the tensioner roller (17).
Turn the tensioner roller
(clockwise), using a hexagonal spanner at «e».
Position the index «d»opposite the notch «f».
Tighten:
- The screw (12)of the tensioner roller (17)to 2,1 ± 0,2 m.daN.
- The auxiliaries drive pulley to 7 ± 0,7 m.daN.
Remove tools [2], [3]and [6].
Rotate the crankshaft two times
(in the direction of rotation of the engine).
Refit tools [2]and [3].
Check the position of the index «d», it should be opposite the notch «f».
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ENGINECHECKING AND SETTING THE VALVE TIMING
Engine: RHR
Refitting.
IMPERATIVE: If the position of the index «d» is not correct, restart the operations to tension
the timing belt
(for this, slightly slacken the screw (12) of the tensioner roller).
Refit tool [6].
Remove the auxiliaries drive pulley (7).
Refit:
- The crankshaft position sensor target (10).
- The lower timing cover (9).
- The crankshaft position sensor (11).
- The lower torque reaction rod.
Take away the workshop hoist.
Coat the screw (8)with Loctite FRENETANCH.
Refit the auxiliaries drive pulley (7) and the screw (8)with its washer.
Tighten the screw (8)to 7 ± 0,7 m.daN, then angular tighten by A= 60°±5°.
Remove tools [2], [3] and [6].
Complete the refitting.
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