valve Citroen C3 2004 1.G Repair Manual

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191
CHECKING AND SETTING THE VALVE TIMING
Engines: 8HX 8HW 8HZ
B1EP18LCB1BP2LZC
Setting the timing (continued).
Refit:
The intermediate RH engine support, tighten the screws
(16)to 5,5 ± 0,5 m.daN.
The RH engine support, tighten the screws
(17)to 4,5 ± 0,4 m.daN.
The bottom timing cover
(3).
Immobilise the engine flywheel, using tool
[3].
Remove the screw
(2).
Refit the accessories drive pulley and tighten to:
Pretighten to
: 3 ± 0,3 m.daN.
Angular tighten to
:180° ± 1,8°.
Remove tool
[3].
Refit:
The top cover
(1).
The accessories belt
(see corresponding operation).
The exhaust line
(see corresponding operation).
The front RH splashshield. The front RH wheel.
C2 C3 C3 PLURIEL XSARA

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ENGINECHECKING AND SETTING THE VALVE TIMING
Engines: 8HY 8HV
B1BP2N0C
Tools.
[1]
Engine flywheel peg Ø 12 mm : ().0194C
[2]
Camshaft pulley peg Ø 8 mm : ().0194B
[3]
Crankshaft pulley peg Ø 5 mm : ().0194A
Preliminar
y operations.
Remove:
The front RH wheel.
The front RH splashshield.
The accessories belt
(see corresponding operation).
Uncouple:
The supply unions
(1).
The air/air heat exchanger inlet/outlet pipes
(3).
The exhaust line
(at the flexible pipe).
Disconnect the connector
(2).
Support the engine by means of a roller jack equipped with a chock.
Remove the engine supports
(4) and(5).
C3

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193
CHECKING AND SETTING THE VALVE TIMING
Engines: 8HY 8HV
B1BP2N1CB1BP2N2C
Checks.
Rotate the engine to engage it (normal direction of rotation).
Immobilise the engine flywheel at
«a», using tool [1].
Move aside the harness
(6).
Remove: The engine support
(7).
The screw
(8).
The pulley
(9).
The lower timing cover
(10).
The upper timing cover
(11).
The tool
[1].
C3

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ENGINECHECKING AND SETTING THE VALVE TIMING
Engines: 8HY 8HV
B1EP18YD
Checks (continued).
Refit the screw (8).
Rotate the crankshaft six times
(clockwise).
IMPERATIVE: Never rotate the engine backwards.
Peg:
The camshaft, using tool
[2](oil the pegs).
The fuel high pressure pump pulley (14), using tool [3]at «c».
WARNING:The magnetic track should show no signs of damage and should not be
approached by any source of magnetism.
Peg the crankshaft at
«b», using tool [3].
IMPERATIVE:Should it be impossible to peg the camshaft, check that the
offset between the hole in the camshaft pinion and the pegging hole is not
greater than 1 mm.Otherwise repeat the operation to position the timing belt
(see corresponding
operation)
.
C3

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195
CHECKING AND SETTING THE VALVE TIMING
Engines: 8HY 8HV
B1EP18ZC
Checks (continued).
NOTE:
The index «e»of the dynamic tensioner roller should be centred within the area «d».
Check the correct positioning of the index
«e».
If it is not correct, repeat the operation to tension the timing belt
(see corresponding operation).
Refitting.
Refit the tool [1]at «a».
Remove the screw
(8).
Refit:
The upper timing cover
(11).
The lower timing cover
(10).
The accessories drive pulley
(9).
The screw
(8).
Tightening torque.
Screw (8):
Pretighten to
:3 ±0,3 m.daN.
Angular tightening
:180° ± 5°.
Remove the tool
[1].
C3

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ENGINE
CHECKING AND SETTING THE VALVE TIMING
Engines: 8HY 8HV
B1BP2N0C
Checks (continued).
Refit:
The engine support (7), tighten to 1,5 ± 0,4 m.daN.
The engine support
(4), tighten to 6,1 ± 0,6 m.daN.
The engine support
(5), tighten to 6 ± 0,6 m.daN.
The electrical harness
(6).
Couple:
The exhaust line, tighten the collar to : 2,5 ± 0,3 m daN.
The fuel supply unions
(1).
The air/air heat exchanger inlet/outlet pipes
(3).
Connect the connector
(2).
Refit:
The accessories belt (see corresponding operation).
The front RH splashshield
(see corresponding operation).
The front RH road wheel, tighten to
9 ±1 m.daN.
Reconnect the battery.
C3

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197
CHECKING AND SETTING THE VALVE TIMING
Engines: 8HY 8HV
B1EP18VD
Setting the timing.
Perform the preliminary operations for checking the timing up to removing tool [1]at «a»for immobiling the
engine flywheel.
Refit screw
(8).
Rotate the crankshaft to bring the camshaft towards its pegging point.
Peg the camshaft, using tool
[2](oil the pegs).
WARNING: Do not press or damage the track which is the target for the engine speed sensor (14).
Peg the crankshaft at «b», using tool [3].
Remove:
The timing protector
(13).
The engine speed sensor
(14).
Slacken the screw
(12)of the tensioner roller, keeping it slack with the aid of a hexagonal spanner at
«c».
Detension the belt by pivoting the tensioner roller
(clockwise).
Remove the timing belt, commencing with the coolant pump pinion.
Peg the pulley
(15), using a 5 mmdiameter peg at «d».
C3

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ENGINECHECKING AND SETTING THE VALVE TIMING
Engines: 8HY 8HV
B1EP18WD
Setting the timing (continued).
Chec
king the setting.
IMPERATIVE: Just prior to refitting, carry out the following tests.
Check that:
the rollers and the coolant pump operate freely
(no play and no tight spot).
there are no traces of oil
(from the crankshaft and camshaft sealing rings).
there is no leak of coolant fluid
(from the coolant pump).
the target track of the engine speed sensor
(14)is not damaged or scratched
(if necessary replace the defective components).
Refitting.
Fit the timing belt on the crankshaft pinion.
Position the belt on the guide roller, with the belt well tensioned.
Refit:
The timing protector
(13).
The sensor
(14).
C3

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199
CHECKING AND SETTING THE VALVE TIMING
Engines: 8HY 8HV
B1EP18XC
Setting the timing (continued).
Chec
ks (continued).
Reposition the timing belt, belt at «e»well tensioned, in the following order:
Guide roller
(17).
Camshaft pulley
(16).
Fuel high pressure pump pulley
(15).
Coolant pump pinion
(18).
Tensioner roller
(19).
Remove the
5 mmdiameter peg at «d».
Adjusting the fitting tension of the belt.
Action the tensioner roller (19)to align the marks «f»and «g», avoiding detensioning the timing belt,
with the aid of a male hexagonal spanner, at
«c».
If this is not successful, repeat the operation to tension the belt.Hold the tensioner roller in position
(19).
Tighten the tensioner roller, tightening to
3,7 ±0,3 m.daN.
Check the position of the tensioner roller
(the alignment of the marks «f»and «g»should be correct).
Remove tools
[2]and [3].
Turn the crankshaft
six rotations(clockwise).
C3

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ENGINE
CHECKING AND SETTING THE VALVE TIMING
Engines: 8HY 8HV
B1EP18XC
Adjusting the timing belt tension (continued).
IMPERATIVE: Never rotate the engine backwards.WARNING:
Do not touch or damage the track of the target of the engine speed sensor (14).
Peg the crankshaft, using tool
[3].
Check the position of the tensioner roller
(the alignment of the marks «f»and «g»should be correct).
If this is not the case, repeat the operation to tension the belt.Peg the camshaft pulley, using tool
[2].
IMPERATIVE: Should it be impossible to peg the camshaft, check that the offset between the
camshaft hole and the pegging hole is not more than 1 mm. If the offset is too great, repeat theoperation.
Remove the pegs [2]and [3].
Refit tool
[1]at «a».
Remove the screw
(8).
Complete the refitting.
C3