Engine Citroen XSARA PICASSO 2004 1.G Workshop Manual

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ENGINE
RECOMMENDATIONS: TIMING BELT
ALL TYPES
Petrol Engine
Recommendations.
IMPERATIVE:After any repair involving removal of the timing belt, systematically replace:
The timing belt,
The tensioner roller fixing nut.
Diesel Engine

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ENGINECHECKING AND SETTING THE VALVE TIMING
Engines: HFX KFV NFU
B1BP2M7CB1BP2M9CB1BP2M8C
Tools.
[1]
Engine flywheel peg: 4507T.A
[2]Camshaft pulley peg : 4507T.B
[3a]Camshaft peg: 4533TA.C1
[3b] Camshaft peg: 4533TA.C2
[4]Dynamic tensioner roller pin: 4200T.H
[5]Belt retaining pin: 4533T.AD
[6]Pliers for removing plastic pins: 7504T
Checking the valve timing.
Engines:
HFX – KFV – NFU.
Raise and support the front RH side of the vehicle.
Disconnect the battery positive terminal.
Engage 5th gear.
Remove the oil filter
(1).
Engines:HFX – KFV.
Remove: The timing top casing (2).
Turn the wheel to rotate the engine (normal direction of rotation).
Peg the camshaft pulley, using tool [2].
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149
CHECKING AND SETTING THE VALVE TIMING
Engine: NFU
B1BP2MAC
Checking the timing (continued).
Engine:
NFU.
Place a jack under the engine, peg the engine.
Remove:
The engine support
(4)complete.
The timing casing
(3).
The sparking plugs
(eases engine rotation).
Turn the wheel to rotate the engine
(normal direction of rotation).
Position the pegs
[3a]and[3b].
Peg the flywheel, using tool
[1].
If the setting is not correct, recommence the operation.
Remove the tools
[1], [2], [3a]and [3b].
Complete the refitting.
B1BP2MBCB1EP18MC
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ENGINECHECKING AND SETTING THE VALVE TIMING
Engines: HFX KFV
B1BP2MBCB1BP2M9CB1BP2MDC
Setting the timing.Preliminary operation.Lift and support the vehicle, wheels hanging.
Disconnect the battery.
Remove:
The front RH wheel.
The splashshield, using tool
[6].
The accessories belt (See corresponding operation).
The crankshaft pulley.
The oil filter.
Place a jack under the engine, peg the engine.
Removing.
Engines:HFX – KFV.Turn the engine by means of screw (1)(normal direction of rotation).
Remove the timing casings.Peg the camshaft pinion, using tool
[2].
Peg the flywheel, using tool [1].
Remove:
The fixing screws
(2).
The upper engine support (3).
B1BP2MCC
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151
CHECKING AND SETTING THE VALVE TIMING
Engines: HFX KFV
B1BP2MECB1EP18NC
Setting the timing (continued).
Engines:
HFX – KFV.
Slacken the screws (4)without removing them.
Remove the bottom engine support assembly
(5), and the fixing screws (4).
Slacken the nut
(6).
Completely detension the belt by acting on the tensioner roller
(7).
Remove the timing belt.
IMPERATIVE: Check that the tensioner roller turns freely (no tight spot).
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ENGINECHECKING AND SETTING THE VALVE TIMING
Engine: NFU
B1BP2MBC
Engine:NFU.
Setting the timing (continued).
Remove:
The bottom plastic casing.
The engine support
(9).
The middle support.
The timing cover
(8).
Peg the flywheel, using tool
[1].
Position the tools
[3a]and [3b].
B1BP2MFCB1EP18MC
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153
CHECKING AND SETTING THE VALVE TIMING
Engine: NFU
B1EP18PC
Setting the timing (continued).
Engine:
NFU.
Slacken the tensioner roller.
Turn the 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
(9)and (10)turn freely (no tight spot).
B1EP18QC
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ENGINECHECKING AND SETTING THE VALVE TIMING
Engines: HFX KFV
B1EP18QC
Setting the timing (continued).
Engines:
HFXKFV.
Refit.
WARNING: Respect the direction of fitting of the belt
(the arrows «d» indicate the direction of rotation
of the crankshaft).
Refit the timing belt.
Position the timing belt, belt
«e»well tensioned, in the following order:
Crankshaft pinion, hold the belt using tool [5].
Camshaft pulley.
Coolant pump pulley. Tensioner roller.
Remove the pegs
[1]and [2].
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155
CHECKING AND SETTING THE VALVE TIMING
Engines: KFX KFV NFU
Setting the timing (continued).
Engines:
HFXKFV.Refitting.
NOTE:Check that the pegs [1]and [2]are in place.WARNING:Respect the direction of fitting of the timing belt, the arrows «d»indicate the direction of rotation
of the crankshaft.Refit the timing belt.
Position the timing belt, belt
«e»well tensioned, in the following order:
Crankshaft pinion, hold the belt using tool [5].
Camshaft pulley. Coolant pump pulley.
Tensioner roller.
Remove the tools
[1], [2].
Engine:NFU.Fit the 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 the tools
[1], [3]and [5].B1EP18RC
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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].
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