2000 Citroen C5 ESP

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74
CHECKING AND SETTING THE VALVE TIMING
Engine : XFX
TOOLS
[1] Camshaft setting pegs(-).0187.B
[2] Crankshaft setting peg(-).0187.A
[3] Fuel pressure take-off union4192-T
[4] Belt retaining pin(-).0187.J
[5]Exhaust camshaft hubs immobilising tool(-).0187.F
[6] Inlet camshaft hubs immobilising tool(-).0187.F
Remove the auxiliaries drive belt (See corresponding operation).
Checking the valve timing setting.
Remove :
- The power steering pulley.
- The roller / dynamic tensioner assembly(11).
- The crankshaft pulley (12).
- The upper timing covers (9)and (10).
- The lower timing cover (13).
B1BP2BKC

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77
CHECKING AND SETTING THE VALVE TIMING
Engine : XFX
Setting the valve timing (continued)
Refit.
- Check that the camshafts and the crankshaft are correctly pegged.
- Check that the rollers and the water pump pulley are turning freely. (No tightness)
- Loosen the camshaft pulley screws by a 1/4 turn.
- Make sure that the pulleys are turning freely on the camshaft hub.
- Turn the camshaft pulleys in a clockwise direction, to end of slots.
WARNING : Respect the direction of fitting of the belt : facing the timing, the inscriptions
on the belt should be readable the correct way up.
- Fit the timing belt on the crankshaft pinion.
- Position the tool [6].
- Position the timing belt in the following sequence :(Belt well tensioned).
- The roller (26), the pulley (18), the pulley(17),
- Keep the timing belt well tensioned :
- Refit the guide roller (16),tighten to 8 ± 0.8 m.daN.
- Position the timing in the following sequence :
- The camshaft pulley (15), the camshaft pulley (14), the tensioner roller (24), the water pump
pulley, and the guide roller(27).
NOTE :When positioning the belt on the camshaft pulleys, turn these clockwise so as to engage
the next tooth. The angular displacement of the pulleys should not be more than the equivalent of
one tooth.
B1EP15VDB1BP2BLC

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80
CHECKING AND SETTING THE VALVE TIMING
Engines : RHY - RHZ
Tools
[1]Belt tension measuring instrument : 4122-T
[2] Tension lever: (-).188.J2
[3]Engine flywheel peg: (-).188.X
[4]Belt retaining pin: (-).0188.K
[5]Camshaft pinion peg: (-).0188.M
[6]Engine flywheel lock: (-).0188.F
[7]Set of blocking plugs: (-).0188.T
[8] Crankshaft pulley extractor: (-).0188.P
Checking the setting of the valve timing.
Peg :
- The engine flywheel, using tool [3]. (From under the vehicle).
- The camshaft, using tool [5].
WARNING :On removing screws (6), (7), (9), and (5) of the timing cover, refit the
screw(5) equipped with a spacer (thickness :17 mm).
Tighten to 1,5 ± 0,1m.daN.
(The screw (5)is one of the screws fixing and sealing the water pump).
WARNING : Should it be impossible to peg the camshaft, check that the offset
between the camshaft pinion hole and the pegging hole is not more than 1 mm,
with the help of a mirror «a» and a Ø 7 mm screw.
B1BP282CB1BP1YSCB1EP152DB1EP14AC
IMPERATIVE : If pegging is impossible, restart the adjusting.
(See corresponding operation).

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85
TOOLS
[1] Belt tension measuring instrument: 4122-T
[2] Engine flywheel peg: (-).0188.X.
[3]Tension lever: (-).0188.Y.
[4]Belt compression spring: (-).0188.K.
[5]Camshaft pinion peg: (-).0188.M.
[6] Engine flywheel lock: (-).0188.F.
[7]Set of blocking plugs: (-).0188.T.
IMPERATIVE : Respect the safety and cleanliness recommendations
specific to high pressure diesel injection (HDi) engines.
Checking the setting of the valve timing.
- Turn the crankshaft(normal direction of rotation)and line up the black
markings on the chain (b) and (c)with the teeth marked (a) and (d)of the
camshaft drive pinions (40 turns max. of the camshaft).
CHECKING AND SETTING THE VALVE TIMING
Engine : 4HX
B1EP159D

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86
Checking the setting of the valve timing (continued).
IMPERATIVE : If it is impossible to line up the marks on the chain and on the camshaft drive
pinions, restart the camshaft setting.
(See operation for removing and refitting camshafts).
- If the marks on the chains and pinions are coinciding, continue the checking operations.
Peg :
- The crankshaft, using tool [3].
- The camshaft pinion, using tool [5]
IMPERATIVE : Should it be impossible to peg the camshaft, check that the offset between the
camshaft pinion hole and the pegging hole is not more than 1 mm (use a screw 7 mm in dia.).
If the offset is more than 1 mm, restart the setting of the valve timing
(See corresponding operation).
- Remove the tools [3] and [5].
CHECKING AND SETTING THE VALVE TIMING
Engine : 4HX
B1EP15ADB1BP298C

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97
EXHAUST SPECIFICATIONS
Engine : RLZ
Tightening torques (m.daN).
(2) Collars2.5 ± 0.3
Repair
Respect the precautions to be taken when
operating on a vehicle.
The flexible pipe must not come into contact
with corrosive products.
Do not distort the flexible pipe by more than20°
angular (X), 20mmaxial, 25 mmshear(Y)
(flexible pipe not fitted).
Do not distort the flexible pipe by more than3°
angular (X), 0 mmaxial, 3 mmshear
(Y) (flexible pipe in place).
WARNING : Non-respect for these precautions
will result in a reduction in the lifetime of the
flexible pipe. It is thus essential to disconnect or
remove the exhaust line in any operation
necessitating the lifting of the power unit.
Engine Front flexible pipe (1) Catalytic converter (3) Rear silencer (4)
RLZ PSA K185 PSA 4157
B1JP02HDB1JP02JC

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98
EXHAUST SPECIFICATIONS
Engine : XFX
Tightening torques (m.daN)
(10)Collars 2.5 ± 0.3
Repair
Respect the precautions to be taken when operating on
a vehicle.
The flexible pipe must not come into contact with corrosive
products.
Do not distort the flexible pipe by more than20°angular
(X),20mmaxial, 25 mmshear (Y)(flexible pipe not
fitted).
Do not distort the flexible pipe by more than 3°angular
(X), 0 mmaxial, 3 mmshear(Y)(flexible pipe in place).
WARNING : Non-respect for these precautions will result
in a reduction in the lifetime of the flexible pipe. It is thus
essential to disconnect or remove the exhaust line in any
operation necessitating the lifting of the power unit..
Oxygen sensor
EngineUpstream
Downstr. Downstr. Upstream Pre-catalyser Pre-catalyser Flexible Catal. conv. Rear
Rear (1) Rear (2) Front (3) Front (4) Rear (5) Front (6) Pipe (7) (8) Silencer (9)
XFXA 258 040 232 TR PSA K 160 TR PSA K 159 TRPSAK 175 PSA 4143
Tightening5 ± 1 m.daN 3.3±0.5 m.daN 3.3±0.5mdaN
B1JP02MDB1JP02JC

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99
EXHAUST SPECIFICATIONS
Engines : RHY- RHZ
Tightening torques (m.daN)
(2) Collars2.5 ± 0.3
Repair
Respect the precautions to be taken when operating
on a vehicle.
The flexible pipe must not come into contact with
corrosive products.
Do not distort the flexible pipe by more than20°
angular (X), 20mmaxial, 25 mmshear (Y)
(flexible pipe not fitted).
Do not distort the flexible pipe by more than 3°
angular(X), 0 mmaxial, 3 mmshear
(Y)(flexible pipe in place).
WARNING :Non-respect for these precautions will
result in a reduction in the lifetime of the flexible
pipe. It is thus essential to disconnect or remove
the exhaust line in any operation necessitating the
lifting of the power unit.
Engines Front pipe (1) Catalytic converter (3) Rear silencer (4)
RHY - RHZ Flexible PSA K 185 PSA 4157
B1JP02HDB1JP02JC