2005 Citroen XSARA PICASSO Timing belt

Downloaded from www.Manualslib.com manuals search engine 192
ENGINECHECKING AND SETTING THE VALVE TIMING
Engine: KFU
Overtension on the belt.
Position «a»: Tensioner roller in detensionedposition.
Position «b»: Tensioner roller in normalposition.
Position «c»: Tensioner roller in overtensionposition.
Turn the tensioner roller (10), using an allen spanner at «e».
Place the index «d»in position «c», hold the belt to the maximum of the interval indicated.
Tighten the tensioner roller fixing nut to 2,1 ± 0,2 m.daN.
Rotate the crankshaft four turns
(normal direction of rotation).
IMPERATIVE: Never turn it backwards.
Check the timing setting by refitting the pegs [1], [2] and [3].
Remove the pegs [1], [2]and [3].
Adjusting the fitting tension of the timing belt.
Slacken the nut, holding the position of the tensioner roller, using an allen spanner at «e».
Bring the index «d»to its adjustment position at «b».
WARNING: The index «d» should not go past the notch «b». If it does, repeat the operation
to tension the timing belt.
Maintain the roller (10)in this position, using an allen spanner.
Tighten the tensioner roller fixing nut to 2,1 ± 0,2 m.daN.
IMPERATIVE: The tensioner roller should not turn during the tightening of its fixing. If it
does, repeat the operation to tension the timing belt.
Complete the refitting.
B1EP1DTC
B1EP1DUC
C4
Angl.-t2-page135-239-2005 9/01/06 10:14 Page 192

Downloaded from www.Manualslib.com manuals search engine 193
ENGINE
CHECKING AND SETTING THE VALVE TIMING
Engine: NFU
Tools.
[1]Belt tension measuring instrument: 4122-T
[2]Flywheel locating peg: 4507-T.A
[3]Camshaft pulley locating peg, exhaust: 4533-T.A C2 Tool kit 4507-T
[4]Camshaft pulley locating peg, inlet: 4533-T.A C1
[5]Tensioning tool: 4707-T.J
Checking the valve timing.
Peg the flywheel using the tool [2].
Peg the exhaust camshaft pulley [3].
Peg the inlet camshaft pulley [4].
Setting the valve timing.
Peg the flywheel using the tool [2].
Peg the camshaft pulleys[3]and [4].
B1EP11CC
B1EP11BC
XSARA
Angl.-t2-page135-239-2005 9/01/06 10:14 Page 193

Downloaded from www.Manualslib.com manuals search engine 194
ENGINECHECKING AND SETTING THE VALVE TIMING
Engine: NFU
Setting the valve timing.
Loosen the screw (2), remove the belt.
Loosen the six pulley screws (1)on the hubs
(there should be a slight amount of friction between the screws and
the pinions).
Check that the rollers (2)and (3) rotate freely.
NOTE: The belt bears three identification marks (a), (b)and (c), facing its own teeth (1), (52)and (72)respectively
(identification marks = white paint lines on the back of the belt facing the corresponding teeth).
Refit the belt.
Line up mark (A)on the belt with groove (D)of the pinion (4).
Hold the belt against the pinion (4).
B1EP11EC
B1EP11DC
XSARA
Angl.-t2-page135-239-2005 9/01/06 10:14 Page 194

Downloaded from www.Manualslib.com manuals search engine 195
ENGINE
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 anti-clockwise direction, to obtain: 63 SEEMunits.
Tighten the roller (2)to 2 m.daN.
Tighten the six screws (5)to 1 m.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.
B1EP11GC
B1EP11FC
XSARA
Angl.-t2-page135-239-2005 9/01/06 10:14 Page 195

Downloaded from www.Manualslib.com manuals search engine 199
ENGINE
CHECKING AND SETTING THE VALVE TIMING
Engine: NFU
Tools.
[1]Flywheel setting peg: 4507-T.A Toolkit 4507-T
[2a]Camshaft setting peg: 4533-TA.C1
[2b]Camshaft setting peg: 4533-TA.C2
[3]Belt retaining pin: 4533-T.AD
[4]Dynamic tensioner roller pin: 4200-T.H
IMPERATIVE: Respect the safety and cleanliness requirements.
Removing.
Raise and support the vehicle, front wheels hanging
Disconnect the battery.
Remove:
- The auxiliaries drive belt (4)
(see corresponding operation).
- The crankshaft pulley (3).
- The oil filter.
Suspend the engine, using a workshop hoist.
Remove the timing cover, the engine support (1), the intermediate support and the timing cover (2).
B1BP382C
C4
Angl.-t2-page135-239-2005 9/01/06 10:14 Page 199

Downloaded from www.Manualslib.com manuals search engine 200
ENGINE
200
CHECKING AND SETTING THE VALVE TIMING
Engine: NFU
Peg the flywheel, using tool [1].
Position the tools [2a]and [2b].
Slacken the tensioner roller.
Turn the dynamic tensioner roller so as to be able
to position the tool[4], with the aid of an Allen key
placed at «a».
Turn the tensioner roller towards the right to bring
it to the index «c»in position «b».
Peg the tensioner roller in this position in order to
slacken the timing belt to the maximum.
IMPERATIVE: Never make the dynamic tensioner
roller turn by a complete rotation.
Remove the timing belt (8).
Check that the rollers and the pump pulley turn
freely
(no tight spot).
B1BP2MBC
B1EP170C
B1EP18PC
B1EP18QC
C4
Angl.-t2-page135-239-2005 9/01/06 10:14 Page 200

Downloaded from www.Manualslib.com manuals search engine 201
ENGINE
CHECKING AND SETTING THE VALVE TIMING
Engine: NFU
Refitting.
Fit the
(new)timing belt in position, in the following order:
- Inlet camshaft pulley, exhaust camshaft pulley, guide roller, crankshaft pulley, position tool [5],
coolant pump pulley, dynamic tensioner roller.
Remove tools [1], [2a], [2b]and [4].
Overtension on the belt.
Turn the tensioner roller (7)with the aid of a hexagonal spanner at «a».
Bring the index «c»to position «d», to tension the belt to the maximum of the interval indicated.
Hold the tensioner roller, using tool [4].
Tighten the fixing nut of the tensioner roller, tightening to 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 pegs [1], [2a]and [2b].
Remove the pegs [1], [2a], [2b]and[4].
B1EP1DPC
C4
Angl.-t2-page135-239-2005 9/01/06 10:14 Page 201

Downloaded from www.Manualslib.com manuals search engine 202
ENGINECHECKING AND SETTING THE VALVE TIMING
Engine: NFU
Adjusting the fitting tension of the timing belt.
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 «e».
WARNING: The index «c» must not go beyond the notch «e». If it should do this, restart the
timing belt tensioning operation.
Hold the tensioner roller in this position with the aid of a hexagonal spanner.
Tighten the tensioner roller fixing nut to 2.2 ± 0.2 m.daN.
IMPERATIVE: The tensioner roller must not rotate during the tightening of its fixing. If it
does, restart the timing belt tensioning operation.
Refitting.
Refit the timing covers, the crankshaft pulley, the auxiliaries drive belt
(see corresponding operation).
Complete the refitting.
IMPERATIVE: Carry out the operations that are necessary following a reconnection of the
battery
(see corresponding operation).
B1EP1HHC
C4
Angl.-t2-page135-239-2005 9/01/06 10:14 Page 202