Engine valve Citroen C3 2004 1.G Owner's Guide

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171
CHECKING AND SETTING THE VALVE TIMING
Engines: 6FZ RFN 2003 # NEW ASSEMBLY2003 #
(6)Crankshaft pinion
(7)Accessories drive pulley
(8)Washer
(9)Screw
The pinion
(6)is fitted as an idler on the crankshaft.
The accessories drive pulley
(7)is immobilised on the crankshaft by a halfmoon keyway and
by the tightening of washer
(8)and screw (9).
A:Pegging on manual gearbox.
B:Pegging on automatic gearbox.
The pegging of the crankshaft is done on the flywheel, or on the converter drive plate
(automatic gearbox).
The pegging hole on the cylinder block
(exhaust end)is calibrated and reinforced.
IMPERATIVE: Never turn the crankshaft with the accessories drive pulley slackened.
IMPERATIVE: Never remove the accessories drive pulley without pegging the crank
shaft and the camshafts.
IMPERATIVE: Always turn the crankshaft in the direction of engine rotation.
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ENGINECHECKING AND SETTING THE VALVE TIMING
NOTE: Checking and setting the timing # 2003: See Mechanic’s Handbook 2003: pages 163 to 173.
Tools.
[1]
Camshaft setting peg: () 0189.A
[2]Crankshaft setting peg: ().0189.R
[3]Timing belt retaining pin :().0189.K
[4]Adaptor for angular tightening: 4069T
[5]Tool for moving and locking the tensioner roller: ().0189.S
[5a] :().0189.S1
[5b] : ().0189 S2
Pliers for removing plastic pins: 7504T
Checking the setting of the timing.
Removing.
Disconnect the battery negative terminal (see corresponding operation).
Raise and support the vehicle, front wheels hanging.
Remove:
The front RH wheel.
The plastic pins
(1).
The splashshield (2).
The upper timing cover.
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Engines: 6FZ RFN 2003 #

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173
CHECKING AND SETTING THE VALVE TIMING
Engines: 6FZ RFN 2003 #
Checking the setting of the timing (continued).
A:
Pegging on the manual gearbox.
B:Pegging on the automatic gearbox.
Turn the engine by means of the crankshaft pinion screw, to bring it to the pegging position.
Peg the crankshaft, using tool
[2].
Peg the camshaft pulleys, using tool
[3].
NOTE:The pegs [3]should go in without effort.
WARNING:If the pegs go in only with difficulty, repeat the operation for fitting and
tensioning the timing belt
(see corresponding operation).
Refitting.
Remove tools [2]and [3].
Complete the refitting in reverse order to removal.
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ENGINECHECKING AND SETTING THE VALVE TIMING
Engines: 6FZ RFN 2003 #
Setting the timing.
Removing.
Disconnect the battery negative terminal (see corresponding operation).
Raise and support the vehicle, front wheels hanging.
Remove: The front RH wheel.
The plastic pins
(1).
The splashshield (2).
The accessories drive belt (see corresponding operation).
Unclip and move aside the fuel delivery hose from the timing cover.
Remove the upper timing cover
(1).
Turn the engine by means of the screw
(3)of the crankshaft pulley (2)to bring it to the pegging position.
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175
CHECKING AND SETTING THE VALVE TIMING
Engines: 6FZ RFN 2003 #
Setting the timing (continued).
A:
Pegging on the manual gearbox.
B:Pegging on the automatic gearbox.
Peg:
The crankshaft, using tool
[2].
The camshaft pulleys
(5)and (6), using tool [1].
Remove:
The screw
(3)of the crankshaft pulley (2).
The lower timing cover
(4)(by moving the engine).
IMPERATIVE: Never remove the crankshaft pulley (2) without pegging the crankshaft
and the camshafts.
Slacken the screw (9)of the tensioner roller (8).
Turn the tensioner roller
(8)(clockwise).
Remove the timing belt
(7).
I
MPERATIVE: Systematically replace the following components: timing belt, exhaust
manifold fixing nuts, timing belt tensioner roller nut.
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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].
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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.
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ENGINECHECKING AND SETTING THE VALVE TIMING
Engines: 6FZ RFN 2003 #
Refitting (continued).
Remove the tools [1]and [2].
Rotate the crankshaft ten times (normal direction of rotation).
IMPERATIVE: No pressure or outside force should be brought to bear on the timing belt.
Peg the inlet camshaft pulley, using tool [1].
Checks.
Tension of the timing belt.
ESSENTIAL:Check the position of the index «a», which should be opposite the slot «g».
If the position of the index «a» is not correct,repeat the operations to tension the timing belt.
Refit the upper timing cover (1).
Clip the fuel delivery hose on the timing cover.
Refit the accessories drive belt
(see corresponding operation).
Lower the vehicle.
Reconnect the battery
(see corresponding operation).
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179
CHECKING AND SETTING THE VALVE TIMING
Engine: RFS
Tools.
[1]
Belt tension measuring instrument: 4122T
[2]Camshaft pulley locating peg: 9041T.Z Tool kit 7004T
[3]Crankshaft locating peg: 7014T.N
[4]Camshaft pulley locking peg: 4200T.G
[5]Tensioner spanner: 7017T.W
[6]Toothed sector for locking the flywheel: 9044T
Checking the setting.
Turn the engine by the crankshaft screw (1).
Peg the crankshaft using the tool[3].
ESSENTIAL: Check that the crankshaft DAMPERS pulley is in good condition. If the hub/pulley markings
do not line up, the crankshaft pulley must be replaced.
Peg the camshaft using the tool [2](the locating pegs [2]should slide in easily).
If this is not the case, set the timing.
NOTE:Camshaft hubs (see pages 138and 139).
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ENGINEXSARACHECKING AND SETTING THE VALVE TIMING
Engine: RFS
Remove:
The peg [3].
The screw (4)(brush the screw thread).
The pulley (5).
The lower cover (6).
Remove:
The tool
[6].
The studs (8).
Fit the tool [4].
Loosen the screws (10).
Remove the tool [4].
Slacken the tensioner roller (7).
Remove the belt (9). Peg the crankshaft using tool
[3].
Peg the camshaft pulleys using tool [2].
Lock the flywheel using the tool [6].
Refit:
The pulley (5).
The screw (4)(tighten moderately).
The peg [3].
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Setting the valve timing.