2005 Citroen XSARA PICASSO Workshop Manual

Downloaded from www.Manualslib.com manuals search engine 187
ENGINE
CHECKING AND SETTING THE VALVE TIMING
Engines: KFW - NFV
Pre-tensioning 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 SEEMunits.
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
Angl.-t2-page135-239-2005 9/01/06 10:14 Page 187

Downloaded from www.Manualslib.com manuals search engine 188
ENGINECHECKING THE VALVE TIMING
Engine: KFU
Tools.
[1] Flywheel setting peg: 4507-TA. Toolkit 4507-T
[2] Camshaft setting peg: 4533-TA.C1
[3] Camshaft setting peg: (-).0194.A
IMPERATIVE: Respect the safety and cleanliness requirements.
Checking.
Deconnect the battery.
Remove:
- The engine cover.
- The upper timing cover (1).
- The oil filter (2).
Remove the sparking plugs to facilitate rotation of the engine.
Turn the engine by means of the crankshaft screw.
IMPERATIVE: Never turn the engine backwards.
Suspend the engine.
Remove:
- The screws (3), the upper RH engine support (4)and the screws (5).
B1BP37JC
B1BP37KC
C4
Angl.-t2-page135-239-2005 9/01/06 10:14 Page 188

Downloaded from www.Manualslib.com manuals search engine 189
ENGINE
CHECKING THE VALVE TIMING
Engine: KFU
Checking (continued).
Position the tools [3]and [2].
Peg the flywheel, using tool [1].
NOTE:If the setting is not correct, recommence the operation.
Remove the tools.
Complete the refitting.
B1BP2ZMC
B1BP2MBC
C4
Angl.-t2-page135-239-2005 9/01/06 10:14 Page 189

Downloaded from www.Manualslib.com manuals search engine 190
ENGINECHECKING AND SETTING THE VALVE TIMING
Engine: KFU
Tools.
[1]Flywheel setting peg: 4507-T.A
[2]Camshaft setting peg: 4533-T.AC1
[3] Camshaft setting peg: (-).0194.A
[4] Belt retaining pin: 4533-TA.D
IMPERATIVE: Respect the safety and cleanliness requirements.
Setting the timing.
Raise and support the vehicle, wheels hanging.
Disconnect the battery.
Remove the engine cover.
Raise and support the vehicle, wheels hanging.
Remove:
- The accessories drive belt (3)
(see corresponding operation).
- The crankshaft pulley, the engine cover.
- The upper timing cover (1).
- The oil filter (2).
Remove the sparking plugs to facilitate rotation of the engine.
Suspend the engine.
Remove the screws (4), the upper RH engine support (5)and the screws (6).
B1BP37QD
B1BP37RC
C4
Angl.-t2-page135-239-2005 9/01/06 10:14 Page 190

Downloaded from www.Manualslib.com manuals search engine 191
ENGINE
191
CHECKING AND SETTING THE VALVE TIMING
Engine: KFU
Setting the timing (continued).
Rotate the engine by means of the crankshaft screw
(clockwise), to bring it to the pegging position.
Peg the flywheel, using tool [1].
Position the tools [2]and [3].
Remove the engine support assembly (9), the fixing
screw (8)and the lower cover (7).
Slacken the nut (11).
Fully detension the belt by moving the tensioner
roller (10).
Remove the timing belt.
IMPERATIVE: Check that the tensioner roller
turns freely
(no tight spot).
Refitting.
Position the
(new)timing belt, in the following
sequence:
- The inlet camshaft pulley, the exhaust camshaft
pulley, the guide roller, the crankshaft pulley, position
the tool [4], the coolant pump pulley, the dynamic
tensioner roller.
Remove the tools [1], [2], [3]and [4].
B1BP2MBC
B1BP2ZMC
B1CP0GLD
B1CP0GMD
C4
Angl.-t2-page135-239-2005 9/01/06 10:14 Page 191

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