valve timing Citroen C2 2004 1.G Repair Manual

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ENGINE
CHECKING AND SETTING THE VALVE TIMING
Engines: 9HZ 9HY
B1BP304D
Tools.
[1]
Flywheel setting peg: ().0194.C
[2]
Camshaft setting peg:().0194.B
[3]
Crankshaft setting peg: ().0194.A
Checking and setting the timing.
Removing.
Raise and support the vehicle, wheels hanging.
Disconnect the positive and negative terminals of the battery.
Remove: The front RH wheel.
The front RH splashshield.
The accessories drive belt
(see corresponding operation).
Uncouple:
The fuel supply unions
(1).
The air/air heat exchanger inlet and outlet pipes
(3).
The exhaust line
(at the flexible pipe).
Disconnect the connecter at
«a».
Remove and move aside the power steering fluid reservoir
(6).
Uncouple, plug and move aside the tube
(2).
Support the engine with a roller jack equipped with a block.Remove the engine supports
(4)and (5).
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ENGINECHECKING AND SETTING THE VALVE TIMING
Engines: 9HZ 9HY
B1EP1E3D
Rotate the engine to drive it in its normal direction of rotation.
Peg the flywheel at
«b». using tool [1].
Move aside the harness
(7).
Remove:
The engine support
(8).
The screw
(10).
The accessories drive pulley
(9).
The lower timing cover
(11).
The upper timing cov
(12).
The tool
[1].
B1BP305C
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ENGINE
CHECKING AND SETTING THE VALVE TIMING
Engines: 9HZ 9HY
B1EP1E6D
Refit the screw (10).
Turn the crankshaft to bring the camshaft towards its pegging point.
Peg the camshaft at
«c», using tool [2](oil the pegs).WARNING: Do not press or damage the track of the engine speed sensor target
(13).
Peg the crankshaft at «e», using tool [3].
Remove:
The timing belt protector
(13).
The engine speed sensor (14).
Slacken the screw (15)of the tensioner roller, and keep it slackened using an allen
spanner at «d».
Detension the timing belt by pivoting the tensioner roller (clockwise).
Remove the timing belt, starting with the coolant pump pinion.
Checks.
ESSENTIAL: Just prior to refitting, proceed to the checks as below.
Check:
That the rollers and the coolant pump pulley turn freely (without play and without tight
spot).
That there are no signs of oil leaks (at the crankshaft and camshaft seals).
That there are no leaks of coolant fluid(at the coolant pump).
That the track of the engine speed sensor target (15)is not damaged or scratched.
Replace any components that are defective (if necessary).
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ENGINE
CHECKING AND SETTING THE VALVE TIMING
Engines: 9HZ 9HY
B1EP1E7D
Refitting.
Fit the timing belt on the crankshaft pinion.
Position the belt on the guide roller, belt well tensioned.
Refit:
The timing belt protector
(13).
The engine speed sensor
(14).
Reposition the timing belt, strip
«f»well tensioned, in the following sequence:
Guide roller
(16).
Camshaft pulley
(20).
Fuel high pressure pump pulley
(19).
Coolant pump pulley
(17).
Tensioner roller
(18).
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ENGINE
CHECKING AND SETTING THE VALVE TIMING
Engines: 9HZ 9HY
B1EP1E8C
Adjusting the timing belt tension.
Act on the tensioner roller (18)to align the marks «g»and «h», avoiding detensioning the
timing belt, using an allen spanner at «d».
Should this fail, repeat the operation to tension the timing belt.Hold the tensioner roller
(18).
Tighten the tensioner roller fixing nut to 3,7 ± 0,3 m.daN.
Check the position of the tensioner roller (the alignment of the marks «g»and «h»should
be correct).
Remove tools [2]and [3].
Rotate the crankshaft six times(clockwise).
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 «g»and «h»should
be correct).
If this is not the case, repeat the operation to tension the timing belt.
Peg the camshaft pulley, using tool
[2].
IMPERATIVE: Should it be impossible to peg the camshaft, check that the offset bet
ween the camshaft hole and the pegging hole is not more than 1 mm. If the offset is
too great, repeat the operation.
Remove tools [2]and [3].
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ENGINECHECKING AND SETTING THE VALVE TIMING
Engines: 9HZ 9HY
Refitting (continued).
Refit tool [1]at «b».
Remove the screw (10).
Refit:
The upper timing cover
(12).
The lower timing cover (11).
The accessories drive pulley (9).
The screw (10).
Tightening torqueScrew (10)Pretighten to:3 ± 0,3 m.daN.
Angular tighten:180°±5°.
Remove tool [1].
Refit:
The engine support
(8), tighten to5,5 ± 0,4 m.daN.
The engine support (4), tighten to 6,1 ±0,6 m.daN.
The engine support (5), tighten to 2,5 ±0,2 m.daN.
The electrical harness (7).
The power steering fluid reservoir (6).
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Disengage the jack from under the engine.
Couple:
The tube
(2).
The exhaust line, tighten the clip to 2,5 ± 0,3 m.daN.
The fuel unions (1).
The air/air heat exchanger inlet and outlet pipes (3).
Connect the connector at «a».
Refit:
The accessories drive belt
(see corresponding operation).
The front RH splashshield (see corresponding operation).
The front RH wheel, tighten to 9 ± 1 m.daN.
Reconnect the positive and negative terminals of the battery.
IMPERATIVE: Perform the operations that are necessary following a
reconnection of the battery (see corresponding operation).

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ENGINE
CHECKING AND SETTING THE VALVE TIMING
Engine: WJY
Tools.
[1]
Pliers for remving plastic pins: 7504T or ().1311
[2]Flywheel peg: 7014T.J or ().0188 Y
[3]Injection pump setting peg Ø 6 mm: ().0188 H
[4]Screw H M8: ().0188 E
[5]Belt retaining pin: ().0188 K
[6]Square for adjusting belt tension: ().0188 J1
[7]Belt tension measuring instrument, with digital display: SEEM CTG 105.5M
Checking the timing.
Peg the flywheel, using tool [2].
Peg the camshaft hub, using tool [4].
Peg the injection pump hub, using tool [3].
IMPERATIVE: If the pegging proves impossible, repeat the setting of the timing.
B1BP2FTCB1EP16PD
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ENGINECHECKING AND SETTING THE VALVE TIMING
Engine: WJY
B1BP2FTC
Setting the timing.
Removing.
Disconnect the battery.
Remove the front RH lower splashshield, using tool [1].
Remove the accessories drive belt (see corresponding operation).
Uncouple and plug the diesel fuel delivery and return hoses. Support the engine, using a workshop hoist.
Remove the RH engine support.
Engage 5th gear to permit rotation of the engine. Remove the upper cover
(1).
Remove the intermediate cover (2).
Remove the lower cover (3).
WARNING:Refit the screw (4)equipped with a washer (5 mm thick).
Rotate the front RH wheel to drive the engine in its normal direction of
rotation. Bring the camshaft drive and injection pump pinions to their setting points.
Position the peg
[2](from underneath the vehicle).
Continue turning the engine until the peg [2]engages in the flywheel.
B1BP30BC
XSARA

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ENGINE
CHECKING AND SETTING THE VALVE TIMING
Engine: WJY
Setting the timing (continued).
Peg the camshaft hub, using tool [4].
Peg the injection pump hub, using tool [3].
Slacken screws (5)and (6).
Slacken screw (9)of the tensioner roller (8).
Remove the timing belt.
Refitting. Retighten screws (5)and (6)by hand.
Turn the pinions (10)and (7)clockwise in order to place them at end of slots.
Fit the timing belt on the crankshaft. Hold the belt, using tool
[5].
Position the timing belt in the following sequence:
Guide roller
(11).
Injection pump pinion (7).
Camshaft pinion (10).
Coolant pump pinion
(12).
Tensioner roller (8).
B1EP16PDB1EP1EDCB1EP132C
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B1EP1EEC

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ENGINECHECKING AND SETTING THE VALVE TIMING
Engine: WJY
B1EP1EDC
Setting the timing (continued).
NOTE:
If necessary, you can slightly rotate the pinions (10)and (7)anticlockwise in order to engage the belt.
The angular displacement value of the belt in relation to the pinions should not be more than half a tooth.
Remove tool
[5].
Act on the tensioner roller
(8)by its square «a», using tool [6]to check that the camshaft and injection
pump pinions can turn freely.
Position the belt tension instrument
[7]on the belt at «b».
Using tool
[6], act at «a»in the direction opposite to that of engine rotation, to obtain a tension value of
106 ± 2 SEEM units.
Tighten screws
(9), (5)and (6).
Remove tools
[7], [2], [3]and[4].
Rotate the crankshaft
8 timesin the normal direction of rotation.
Peg the flywheel, using tool
[2].
Peg the camshaft hub, using tool
[4].
Peg the injection pump hub, using tool
[3].
Slacken screws
(9), (5)and (6).
Position the belt tension instrument
[7]on the belt at «b».
Using tool
[6], act at «a»in the direction opposite to that of engine rotation, to obtain a tension value of
42 ± 2 SEEM units.
B1EP1EFC
XSARA