engine Citroen XSARA PICASSO 2004 1.G Workshop Manual

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177
CHECKING AND SETTING THE VALVE TIMING
Engines: 6FZ RFN 2003 #
Tensioning the timing belt.
Turn the tensioner roller (8)in the direction of the arrow «c», by means of a hexagonal spanner at «d».
Positionner l’index «a»en position «f».
IMPERATVE: The index «a» should go past the slot «g» by an angular value of 10°.
If it does not, replace the tensioner roller or the timing belt and tensioner roller assembly.
Next bring the index «a»to its adjusting position «g», by turning the tensioner roller in the direction of the arrow «e».
WARNING:the index «a»should not pass the slot «g».
Otherwise, repeat the operation to tension the timing belt.
IMPERATIVE: The tensioner roller should not turn during the tightening of its fixing.
If it does, repeat the operation to tension the timing belt.
Tighten the screw (9)of the tensioner roller (8)to 2,1 ± 0,2 m.daN.
IMPERATIVE: The hexagonal tensioner roller drive should be approx. 15° below the level of the cylinder head
gasket «h».
If it is not, replace the tensioner roller or the timing belt and tensioner roller assembly.
B1EP1BEC
B1EP1BFC
XSARA XSARA PICASSO

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ENGINECHECKING AND SETTING THE VALVE TIMING
Engines: 6FZ RFN 2003 #
Refitting (continued).
Remove the tools [1]and [2].
Rotate the crankshaft ten times (normal direction of rotation).
IMPERATIVE: No pressure or outside force should be brought to bear on the timing belt.
Peg the inlet camshaft pulley, using tool [1].
Checks.
Tension of the timing belt.
ESSENTIAL:Check the position of the index «a», which should be opposite the slot «g».
If the position of the index «a» is not correct,repeat the operations to tension the timing belt.
Refit the upper timing cover (1).
Clip the fuel delivery hose on the timing cover.
Refit the accessories drive belt
(see corresponding operation).
Lower the vehicle.
Reconnect the battery
(see corresponding operation).
B1EP1BEC
B1EP1BFC
XSARA XSARA PICASSO

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179
CHECKING AND SETTING THE VALVE TIMING
Engine: RFS
Tools.
[1]
Belt tension measuring instrument: 4122T
[2]Camshaft pulley locating peg: 9041T.Z Tool kit 7004T
[3]Crankshaft locating peg: 7014T.N
[4]Camshaft pulley locking peg: 4200T.G
[5]Tensioner spanner: 7017T.W
[6]Toothed sector for locking the flywheel: 9044T
Checking the setting.
Turn the engine by the crankshaft screw (1).
Peg the crankshaft using the tool[3].
ESSENTIAL: Check that the crankshaft DAMPERS pulley is in good condition. If the hub/pulley markings
do not line up, the crankshaft pulley must be replaced.
Peg the camshaft using the tool [2](the locating pegs [2]should slide in easily).
If this is not the case, set the timing.
NOTE:Camshaft hubs (see pages 138and 139).
B1EP12GCB1EP12FC
XSARA

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ENGINEXSARACHECKING AND SETTING THE VALVE TIMING
Engine: RFS
Remove:
The peg [3].
The screw (4)(brush the screw thread).
The pulley (5).
The lower cover (6).
Remove:
The tool
[6].
The studs (8).
Fit the tool [4].
Loosen the screws (10).
Remove the tool [4].
Slacken the tensioner roller (7).
Remove the belt (9). Peg the crankshaft using tool
[3].
Peg the camshaft pulleys using tool [2].
Lock the flywheel using the tool [6].
Refit:
The pulley (5).
The screw (4)(tighten moderately).
The peg [3].
B1EP120CB1EP11ZC
Setting the valve timing.

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181
CHECKING AND SETTING THE VALVE TIMING
Engine: RFS
Pretensioning the timing belt.
Peg the crankshaft using the tool [3].
Peg the camshaft pulleys using the tool [2].
NOTE:Ensure that the camshaft pulleys rotate freely on the hubs. Clean the contact faces of the pulleys and
hubs.
Turn the camshaft pulleys in a clockwise direction to bring them to the end of the slots.
Fit the belt
(9).
Fit the tool [1].
Turn the roller (7)using the tool [5].
Pretension to:(Pulleys slackened).
Tighten the screws of the roller
(7)to 2 m.daN.
Fit the tool [4].
Tighten the screws (10)to 4 m.daN.
Remove the tools.
Rotate the crankshaft by
six turns(normal direction of rotation).
B1EP121CB1EP12OC
Engine
New beltRFS
55 SEEM units
XSARA

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ENGINECHECKING AND SETTING THE VALVE TIMING
Engine: RFS
Tensioning the timing belt.
Peg the crankshaft using the tool [3].
Peg the camshaft pulleys using the tool [2].
NOTE:If it is not easy to peg the camshaft hubs, loosen the tensioner roller (7), and turn the camshafts using the
screw (10).
Fit the tool
[4].
Loosen the screws (10).
Remove the tool [4].
Loosen the tensioner roller (7).
Fit the tool [1]to the belt.
Turn the roller (7)using the tool [5].
B1EP121CB1EP120C
XSARA

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183
CHECKING AND SETTING THE VALVE TIMING
Engine: RFS
Tension to:(Pulleys slackened).
Tighten the screw of the roller
(7)to 2 m.daN.
Fit the tool [4].
Tighten the screws (10)to 7.5 m.daN.
Remove the tools.
Rotate the crankshaft by two turns
(normal direction of rotation).
Check the pegging of the crankshaft/camshaft using tools [2]and [3].
NOTE:Tools [2] and [3]should slide in easily.
Remove the tools.
B1EP121CB1EP120C
Engine
New beltRFS
35 SEEM units
XSARA

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ENGINECHECKING AND SETTING THE VALVE TIMING
Engines: 8HX 8HW 8HZ
B1BP2LXC
Tools.
[1]
Pliers for removing plastic pegs : 7504T
[2]Lever for detensioning the dynamic tensioner roller: ().0194.E
[3]Engine flywheel setting peg: ().0194.C
[4]Camshaft setting peg: ().0194.B
[5]Crankshaft and high pressure pump setting peg: ().0194.A
Preliminar
y operations.Remove:
The front RH wheel.
The front RH splashshield, using tool
[1].
The clips of the electrical harness on the upper timing cover. The accessories belt, using tool
[2](see corresponding operation).
Check ing the setting.
Disconnect the battery negative cable.
Remove the upper timing cover (1).
Rotate the engine using the screw (2)of the crankshaft pulley.
NOTE:The locking hole is located under the crankshaft bearing cap cover.
Undo the screw (2).
Detension the auxiliary drive belt dynamic tensioner roller, using tool [2].
C2 C3 C3 PLURIEL XSARA

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185
CHECKING AND SETTING THE VALVE TIMING
Engines: 8HX 8HW 8HZ
B1EP18EC
Checking the setting (continued).
Remove:
the accessories drive belt.
the accessories drive pulley.
the lower timing cover
(3).IMPERATIVE: The magnetic track should show no signs of damage
and should not be approached by any other source of magnetism.
Reposition the screw (2).
Remove tool [3].
Rotate the engine by means of the crankshaft pinion screw (2)(clock
wise), to bring it to the pegging position.
Position the tool [4].
Peg the crankshaft pinion (1), using tool [5].
Peg the high pressure pump pinion, using tool [5].NOTE:Index «a»of the roller tensioner must be centred within the
area «b».
Check the correct positioning of index «a».
Remove tools [4]and [5].
Rotate the engine ten times.Fit the tools
[4]and [5].
If pegging is not possible, carry out the operation to remove/refit the
timing belt
(see corresponding operation).
B1JP03SCB1EP18DCB1EP18FC
C2 C3 C3 PLURIEL XSARA

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ENGINECHECKING AND SETTING THE VALVE TIMING
Engines: 8HX 8HW 8HZ
B1EP18GC
Setting the timing.
Remove the upper timing cover (1).
Rotate the engine by means of the crankshaft screw (2).
NOTE:The pegging hole is located under the crankshaft bearing cap cover.
Peg the engine flywheel, using tool
[3].
Remove the lower timing cover (3).
Uncouple the exhaust line from the manifold.
IMPERATIVE: Uncouple the exhaust line in order to avoid damaging the front flexible pipe. Twisting,
pulling and bending the front flexible pipe reduces its life.
Remove:
The engine speed sensor (6).
The belt retaining stop (5).
The screw (2).
The crankshaft pinion (4)(with its magnetic track «a»).
IMPERATIVE: The magnetic track should show no signs of damage and should not be approached
by any other source of magnetism.Should this not be adhered to,it is essential to replace the crank
shaft pinion.
Refit the screw (2).
B1BP2LXC
C2 C3 C3 PLURIEL XSARA