2004 Citroen C2 tensioner

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ENGINECHECKING AND SETTING THE VALVE TIMING
Engine: NFU
B1EP18SD
Timing belt overtensioned.
A:Engine:HFX – KFV.
B:Engine:NFU.
Turn the tensioner roller
(7)with the aid of a hexagonal spanner at «a».
Bring the index
«c»to position «f», to tension the belt to the maximum of the
interval indicated.Hold the tensioner roller
(7), using tool [4].
Tighten the fixing nut of the tensioner roller, tightening to
1 ± 0,1 m.daN.
Turn the crankshaft by
4 rotations(normal direction of rotation).
IMPERATIVE: Never make the crankshaft rotate backwards.
Make sure that the timing is correctly set by refitting the tools [1], [2]and [3].
Remove the tools
[1], [2]and [3].
C2 C3 C3 PLURIEL

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157
CHECKING AND SETTING THE VALVE TIMING
Engines: HFX KFV NFU
B1EP18TD
Adjusting the fitting tension of the timing belt.
A:Engine:HFX – KFV.
B:
Engine:NFU.
Slacken the nut while maintaining the position of the tensioner roller, with the aid of
a hexagonal spanner at
«a».
Next bring the index
«c»to its adjusting position «a».
The index
«c»should not go beyond the notch «g».
WARNING:The index«c» must not go beyond the notch«g».If it should do this,
restart the timing belt tensioning operation.
Hold the tensioner roller
(7)in this position, with the aid of a hexagonal spanner.
Tighten the tensioner roller fixing nut to :
2 ±0.2 m.daN.(HFX - KFV engines)
2.2 ± 0.2 m.daN.(NFU engine)
IMPERATIVE: The tensioner roller must not rotate during the tightening of its
fixing. If it does, restart the timing belt tensioning operation.
Complete the refitting.
C2 C3 C3 PLURIEL

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ENGINE
Tools.
[1]
Flywheel peg: 4507T.A
[2]Camshaft pulley peg: 4507T.B Tool kit 4507T
[3]Square: 4507T.J
[4]Belt tension measuring instrument:4122T
[5]Valve rocker thrust plate :4533T.Z
Checking the timing.
Peg the flywheel, using tool [1].
Peg the camshaft pulley, using tool [2].
Setting the timing.
NOTE:
Remove the sparking plugs, to ease rotation of the crankshaft.
Rotate the engine by means of the crankshaft screw (1).
Peg the camshaft pinion.
Peg the flywheel
Slacken the nut
(2).
Fullt detension the belt by acting on the tensioner roller.
Remove the belt.
IMPERATIVE: Check that the tensioner roller turns freely (no tight spot).
CHECKING AND SETTING THE VALVE TIMING
Engines: KFW NFV

B1EP067CB1EP066CB1EP068C
XSARA XSARA PICASSO

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CHECKING AND SETTING THE VALVE TIMING
Engines: KFW NFV
Refitting the timing belt.
NOTE:
Check that the pegs [1]and [2]are in place.
WARNING: Respect the direction of fitting of the belt: The arrows "a" indicate the direction of rotation of
the crankshaft.
Position:
The timing belt, belt "b"welltensioned, in the following order:
Crankshaft pinion, camshaft pulley, coolant pump pulley, tensioner roller.
Tool
[5](respect the direction of fitting relative to the valve timing).
Put the tensioner roller in contact with the belt.
Tighten the nut
(2).
Pretensioning the belt.
Place tool [4]on the tensioned part "b"of the belt.
Slacken the screw (2).
Turn the roller (3)in the anticlockwise direction using the drive square, to obtain a value of:44 SEEM units. Tighten the nut (2)to 2 m.daN. Remove tools [1], [2]and [4].
Rotate the crankshaft 4 turnsin the normal direction of rotation.
IMPERATIVE:Never turn the crankshaft backwards.
B1EP06ACB1EP069C
XSARA XSARA PICASSO
ENGINE

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163
CHECKING AND SETTING THE VALVE TIMING
Engine: NFU
Setting the valve timing.
Turn the two pulleys (1)clockwise to the end of the slots.
With the belt strip (e)fully tensioned, place the belt over the pulley, first exhaust side, then inlet side, while
ensuring that marks (b)and (c)on the belt are aligned with marks (f)on the pulleys.
Hold the belt in this position, and engage it over the water pump pinion and the tensioner roller.
Fit the tool
[1]on the belt at (e).
Rotate the roller (2) (using tool [5])in an anticlockwise direction, to obtain:63 SEEM units.
Tighten the roller (2)to 2 m.daN.
Tighten the six screws (5)to 1m.daN.
ESSENTIAL: Check that:
The camshaft pulleys (1) are not at the end of the slots (by removing a screw). The markings on the belt are aligned with the markings on the crankshaft and camshaft pulleys.
If not, repeat the setting procedure.
B1EP11GCB1EP11FC
XSARA

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ENGINECHECKING AND SETTING THE VALVE TIMING
Engine: NFU
Setting the valve timing.
Remove the tools [1], [2], [3] and [4].
Rotate the engine by 4 turnsin the normal direction (do not turn backwards). Peg the flywheel [2].
Loosen the six screws (5), while ensuring there is still a slight amount of friction with the pulley.
Peg the camshaft hubs using pegs [3]and [4].
WARNING: In certain cases, it may be necessary to slightly turn the camshaft using the hub fixing screw.
Fit the tool [1].
Loosen the tensioner roller screw (2).
Rotate the roller (2)(using tool [5])in an anticlockwise direction to obtain:37 SEEM units.
Tighten the tensioner roller screw (2)to 2 m.daN.
Tighten the six pulley screws (1)to 1m.daN.
Remove the tools.
XSARA

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169
CHECKING AND SETTING THE VALVE TIMING
Engine: KFU
Remove:
The lower engine support assembly(5)and the fixing screw (4).
Remove the lower timing cover (6).
Slacken the nut (7).
Remove the timing belt.
IMPERATIVE: Check that the tensioner roller turns freely (no tight spot).
Refitting.
Fit the (new)timing belt, in the following sequence:
Inlet camshaft pulley.
Exhaust camshaft pulley. Guide roller.
Crankshaft pulley.
Position the tool
[5].
Coolant pump pulley.
Dynamic tensioner roller.Remove tools
[3],[4]and [5].
B1CP0F2DB1CP0F1D
C3

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ENGINECHECKING AND SETTING THE VALVE TIMING
Engine: KFU
B1EP1DUC
Overtensioning the belt.Position «a»Tensioner roller in slackened position.
Position «b»Tensioner roller in normal position.
Position «c» Tensioner roller in overtensioned position.
Turn the tensioner roller (8)using an allen spanner at «e».
Position the index «d»in position «c», tension the belt to the maximum indicated.
Tighten the fixing nut of the tensioner roller to 2,1 ± 0,2 m.daN.
Rotate the crankshaft by 4 turns(normal direction of rotation).IMPERATIVE: Never turn the crankshaft backwards.Make sure the timing setting is correct by refitting the pegs [1], [3]and [4].
Remove the pegs [1], [3]and [4].
Adjusting the tension of the belt.Slacken the nut, holding the position of the tensioner roller, by means of an allen spanner at
«e».
Then bring the index «d»to its adjustment position «b».WARNING:The index «d»should not go past the notch «b».If it should do so, repeat the operation to
tension the timing belt.Maintain the tensioner roller
(8)in this position, using the allen spanner.
Tighten the fixing nut of the tensioner roller to 2,1 ± 0,2 m.daN.IMPERATIVE:The tensioner roller should not turn during the tightening of its fixing.If it should do
so, repeat the operation to tension the timing belt.
Refitting.
Complete the refitting in the opposite order to removal.
B1EP1DTC
C3