Engine valve Citroen C3 2004 1.G Service Manual

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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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ENGINECHECKING AND SETTING THE VALVE TIMING
Engine: RFS
Tensioning the timing belt.
Peg the crankshaft using the tool [3].
Peg the camshaft pulleys using the tool [2].
NOTE:If it is not easy to peg the camshaft hubs, loosen the tensioner roller (7), and turn the camshafts using the
screw (10).
Fit the tool
[4].
Loosen the screws (10).
Remove the tool [4].
Loosen the tensioner roller (7).
Fit the tool [1]to the belt.
Turn the roller (7)using the tool [5].
B1EP121CB1EP120C
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
B1BP2LXC
Tools.
[1]
Pliers for removing plastic pegs : 7504T
[2]Lever for detensioning the dynamic tensioner roller: ().0194.E
[3]Engine flywheel setting peg: ().0194.C
[4]Camshaft setting peg: ().0194.B
[5]Crankshaft and high pressure pump setting peg: ().0194.A
Preliminar
y operations.Remove:
The front RH wheel.
The front RH splashshield, using tool
[1].
The clips of the electrical harness on the upper timing cover. The accessories belt, using tool
[2](see corresponding operation).
Check ing the setting.
Disconnect the battery negative cable.
Remove the upper timing cover (1).
Rotate the engine using the screw (2)of the crankshaft pulley.
NOTE:The locking hole is located under the crankshaft bearing cap cover.
Undo the screw (2).
Detension the auxiliary drive belt dynamic tensioner roller, using tool [2].
C2 C3 C3 PLURIEL XSARA

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185
CHECKING AND SETTING THE VALVE TIMING
Engines: 8HX 8HW 8HZ
B1EP18EC
Checking the setting (continued).
Remove:
the accessories drive belt.
the accessories drive pulley.
the lower timing cover
(3).IMPERATIVE: The magnetic track should show no signs of damage
and should not be approached by any other source of magnetism.
Reposition the screw (2).
Remove tool [3].
Rotate the engine by means of the crankshaft pinion screw (2)(clock
wise), to bring it to the pegging position.
Position the tool [4].
Peg the crankshaft pinion (1), using tool [5].
Peg the high pressure pump pinion, using tool [5].NOTE:Index «a»of the roller tensioner must be centred within the
area «b».
Check the correct positioning of index «a».
Remove tools [4]and [5].
Rotate the engine ten times.Fit the tools
[4]and [5].
If pegging is not possible, carry out the operation to remove/refit the
timing belt
(see corresponding operation).
B1JP03SCB1EP18DCB1EP18FC
C2 C3 C3 PLURIEL XSARA

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ENGINECHECKING AND SETTING THE VALVE TIMING
Engines: 8HX 8HW 8HZ
B1EP18GC
Setting the timing.
Remove the upper timing cover (1).
Rotate the engine by means of the crankshaft screw (2).
NOTE:The pegging hole is located under the crankshaft bearing cap cover.
Peg the engine flywheel, using tool
[3].
Remove the lower timing cover (3).
Uncouple the exhaust line from the manifold.
IMPERATIVE: Uncouple the exhaust line in order to avoid damaging the front flexible pipe. Twisting,
pulling and bending the front flexible pipe reduces its life.
Remove:
The engine speed sensor (6).
The belt retaining stop (5).
The screw (2).
The crankshaft pinion (4)(with its magnetic track «a»).
IMPERATIVE: The magnetic track should show no signs of damage and should not be approached
by any other source of magnetism.Should this not be adhered to,it is essential to replace the crank
shaft pinion.
Refit the screw (2).
B1BP2LXC
C2 C3 C3 PLURIEL XSARA

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187
CHECKING AND SETTING THE VALVE TIMING
Engines: 8HX 8HW 8HZ
Setting the timing (contin
ued).
Remove the tool [3].
Rotate the engine by means of the crankshaft pinion screw
(2)(clock
wise), to bring it to the pegging position.
Peg the camshaft pulley, using tool
[4].
Peg:
The crankshaft pinion
(6), using tool [5].
The high pressure pump pinion, using tool [5].
Support the engine with the aid of a roller jack equipped with a chock.
Remove:
The RH engine support
(7).
The intermediate engine support (right hand side)(8).
B1JP03SCB1EP18DCB1EP195CB1BP2LYC
C2 C3 C3 PLURIEL 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.
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189
CHECKING AND SETTING THE VALVE TIMING
Engines: 8HX 8HW 8HZ
B1EP18JD
Setting the timing (continued).
NOTE:
Screw (9)slackened.
Position the timing belt
(10)observing the following sequence:
Crankshaft pinion
(4).
Guide roller
(12).
Camshaft pulley
(11)(check that the belt is held correctly against the roller).
Coolant pump pinion
(13).
Fuel high pressure pump pulley
(15).
Tensioner roller
(14).
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ENGINECHECKING AND SETTING THE VALVE TIMING
Engines: 8HX 8HW 8HZ
B1EP18KC
Setting the timing (continued).
Turn the tensioner roller to the right to bring the index «c»to position «d», using a
hexagonal spanner.
Tighten the screw
(9)of the tensioner roller, tighten to 3 ± 0,3 m.daN.
Remove the tools [4]and [5].
Rotate the engine
ten times(check that the timing pinion is correctly up against the
crankshaft).
Check:
The pegging of the camshaft.
The crankshaft pinion.
The fuel high pressure pump pinion
(15).
The correct positioning of the index of the dynamic tensioner.
If these are not correct, repeat the operation to position the timing belt.Refit:
The engine speed sensor
(6).
The belt retaining stop (5), tighten to 0,7 m.daN.
C2 C3 C3 PLURIEL XSARA