daN Citroen XSARA 2004 1.G Repair Manual

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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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ENGINECHECKING AND SETTING THE VALVE TIMING
Engines: KFW NFV
Pretensioning the timing belt (continued).
Make sure of the timing setting by refitting the pegs [1]and [2].
Remove the valve cover.
Position the tool
[5](respect the direction of fitting relative to the valve timing).
Adjusting the belt tension.
Place tool [4]on the tensioned part of the belt.
Slacken the nut (2).
Detension the belt, but too much.
Tension the timing belt to obtain a value of:
31 ± 2 SEEM units.
Tighten the nut (2)to 2 m.daN.
Remove tools [1], [2], [4] and [5].
Checking the belt tension.
Rotate the crankshaft 2 turnsin the normal direction of rotation.
Check that it is still possible to peg the following components. Flywheel.
Camshaft.
IMPERATIVE: Repeat the belt tensioning operation if the pegging is not possible.
XSARA XSARA PICASSO

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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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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

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ENGINECHECKING AND SETTING THE VALVE TIMING
Engines: 6FZ RFN 2003 #
Setting the timing (continued).Turn the tensioner roller (8), using tool [5a]to go beyond slot «b».
Position the tool [5b]to lock the index «a»and remove the tool [5a].
Reposition the timing belt (7)on the crankshaft pulley.
Hold the timing belt (7)in place using tool [3].
Fit the timing belt (7)in place, respecting the following order:
Guide roller (10).
Inlet camshaft pulley (6).
Exhaust camshaft pulley (5).
Coolant pump (11).
Tensioner roller (8).NOTE:Make so that the belt (7)is as flush as possible with the exterior face of the various
pinions and rollers.
Remove: Tool
[3].
Tool [1]from the exhaust camshaft pulley.
Tool [5b]from the tensioner roller (8).
Refit: The lower timing cover
(4)(by moving the engine). The crankshaft pulley (2).
Screw (3)of the crankshaft pulley
Tighten screw (3)to 4 ± 0,4 m.daN, then angular tighten to 53° ± 4°, tool [4].
B1EP1BCDB1EP1BDC
XSARA XSARA PICASSO

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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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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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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
B1EP18HC
Setting the timing (continued).
Hold the tensioner roller, using a hexagonal spanner at «b».
Slacken the screw (9).
Remove the timing belt (10).
Refitting.
IMPERATIVE: Check that both the tensioner roller and the fixed roller turn freely
(no tight spots). If this is not the case, replace the rollers.
Fitting of the pulle
ys.
Camshaft pulley: Tighten to 4,3 ± 0,4 m.daN.
Fuel high pressure pump pulley: Tighten to 5 ± 0,5 m.daN.
The crankshaft pinion is located without a screw at the end of the crankshaft.
Fitting of the rollers.
IMPERATIVE: Check that the tensioner roller turns freely (no tight spot).Otherwise, replace the rollers.
Guide roller:Tighten to 4,5 ± 0,4 m.daN.
Tensioner roller :Pretighten to 0,1 m.daN.
Check the condition of the seals at the camshaft and at the crankshaft pinion.
C2 C3 C3 PLURIEL XSARA