Citroen C5 2000 (DC/DE) / 1.G Repair Manual

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58
Engine : 4HX
Cylinder head gasket identification
X = MAXIMUM reusable length NOTE : Grease the bolts on the threads and under the heads,
(using engine oil or Molykote G plus. ESSENTIAL : Tighten screw by screw
and in the order indicated.
Pre-tightening2 ± 0.2(Order 1 to 10)
Tightening6 ± 0.6(Order 1 to 10)
Untightening360°(Order 10 to 1)
Pre-tightening2 ± 0.2(Order 1 to 10)
Tightening6 ± 0.6(Order 1 to 10)
Angular tightening220°±5°(Order 1 to 10)
(In 2 attempts max.)
B1DP05BC
4HX
X = 134.5 mm Cylinder head tightening (m.daN)
4HXCylinder head bolts
CYLINDER HEAD (Continued)
B1DP15EC

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59 Tooling
BELT TENSION/SEEM UNITS CORRESPONDENCE TABLE
!4099-T (C.TRONIC.105)4122-T (C.TRONIC.105.5) !!!
B1EP135D

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60
AUXILIARY EQUIPMENT DRIVE BELT
Engines : all types Petrol and Diesel
TOOLS
Belt tension measuring instrument : 4122 - T
(C.TRONIC 105.5)
WARNING : If using tool 4099-T (C.TRONIC 105), refer to the correspondence table on page 59.
ESSENTIAL:
Before refitting the auxiliary equipment drive belt, check that:
1 / The roller(s) rotate freely(no play or stiffness).
2 /The belt is correctly engaged in the grooves of the various pulleys.

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61
AUXILIARY EQUIPMENT DRIVE BELT
Engines : 6FZ-RFN-RLZ
Without Aircon
With Aircon
TOOLS
[1] Pliers for removing plastic pegs7504-T
Remove the belt.
- Detension the belt (3)by turning the tensioner roller(1), by the screw(2)
(anti-clockwise).
WARNING:the screw (2) has a left hand thread.
- Remove the belt (3), while keeping the tensioner roller (1)tensioned.
Refit the belt.
- Compress the tensioner roller (1).
- Fit the belt (3).
- Release the tensioner roller (1).
Tightening torques m.daN.
Tensioner roller screw (4) 2 ± 0.2
Guide roller screw (5) 3.5 ± 0.3
B1BP23QC
B1BP23PC
B1BP23RC

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62
AUXILIARY EQUIPMENT DRIVE BELT
Engine : XFX
Tools
[1] Ratchet S.171 FACOM (1/2 square) S 171.
[2] Reduction box S.230 FACOM (1/2-3/8) S 230.
Remove.
Remove the engine cover.
Pivot the tensioner roller bracket (1) clockwise, until it locks, using tools[1]
and [2]at «a».
Remove the auxiliary equipment drive belt.
ESSENTIAL : Check that the guide rollers are turning freely.
(No play and no tightness).
Refit.
Refit the auxiliary equipment drive belt:
Respect the following order of assembly:
- The crankshaft pulley (2).
- The tensioner roller (3).
Release the tensioner roller bracket (1), by turning it anti-clockwise, using
tools [1] and [2].
ESSENTIAL : Make sure that the belt is correctly positioned in the
grooves of the various pulleys.
B1BP27ECB1BP27FC

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63
AUXILIARY EQUIPMENT DRIVE BELT
Engines : RHY - RHZ
Without air conditioning
B1BP1YKD
TOOLS
[1]Belt tension adjusting square: (-).0188 J2
[2] Ø 4 mm peg: (-).0188.Q1
[3] Ø 2 mmpeg: (-).0188.Q2.
[4] Dynamic tensioner compression lever: (-).0188.Z
Remove
Re-use of belt
WARNING : Mark the direction the belt was fitted in case of re-use of the same belt.
- Compress the tensioner roller (2) by action at «a»(in anti-clockwise direction), tool [4].
- Keep the tensioner roller(2)compressed and remove the belt.
No re-use of belt.
- Compress the dynamic tensioner roller (2) by action at «a»(anti-clockwise), using tool [4].
- Peg using tool [2], at «b».
- Hold the dynamic tensioner roller (2)compressed and remove the belt.
- Loosen the screw (1).

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64
AUXILIARY EQUIPMENT DRIVE BELT
Engines : RHY - RHZ
Without air conditioning (continued)
Refit.
Re-used belt.
- Compress the tensioner roller(2)by action at «a»(anti-clockwise), tool [4].
- Refit the belt.
WARNING : Respect the direction in which the belt is fitted.
- Remove the tool [4].
New belt.
- Refit the belt.
- Turn the eccentric roller (3), tool[1] (clockwise)to free the tool [2]from its pegging at «b».
- Hold the eccentric roller (3), tool [1], and tighten the screw(1) to 4.3 ± 0.4 m.daN.
- Remove the tool [2].
- Rotate the crankshaft 4 times in the direction of rotation.
- Check that it is possible to peg at «b», tool [3].
- If not possible to peg, restart the adjustment.
B1BP1YMD

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65
AUXILIARY EQUIPMENT DRIVE BELT
Engines : RHY - RHZ
With air conditioning
B1BP1YLD
TOOLS
[1] Belt tension adjusting square : (-).0188 J2
[2] Ø 4 mm peg :(-).0188.Q1
[3] Ø 2 mm peg :(-).0188.Q2
[4] Dynamic tensioner compression lever :(-).0188.Z
Remove
Re-use of belt
WARNING : Mark the direction the belt was fitted in case of re-use of the same belt.
- Compress the tensioner roller (7) by moving it at «c»(in anti-clockwise direction), tool [4].
- Hold the tensioner roller(7) compressed and remove the belt.
No re-use of belt.
- Compress the tensioner roller (7)by moving it at «c»(in anti-clockwise direction), tool[4].
- Peg using tool [2], at «d».
- Loosen the screw (6).
- Bring the eccentric roller (5)towards the rear.
- Tighten the screw (6)by hand.
- Remove the belt.

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66
AUXILIARY EQUIPMENT DRIVE BELT
Engines : RHY - RHZ
With air conditioning (continued)
Refit.
Re-used belt.
- Compress the tensioner roller (7)by action at «c»(in anti-clockwise direction), tool [4].
- Refit the belt.
WARNING : Respect the direction in which the belt is fitted.
- Remove the tool [4].
New belt.
- Refit the belt.
- Turn the eccentric roller (5), tool [1](clockwise)to free the tool [2]from its pegging at «d».
- Hold the eccentric roller (5), tool [1], and tighten the screw (6)to 4.3 ± 0.5 m.daN.
- Remove the tool [2].
- Rotate the crankshaft 4 times in the normal direction of rotation.
- Check that it is possible to peg at «d», tool [3].
- If not possible to peg, restart the adjustment..
B1BP1YND

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67
AUXILIARY EQUIPMENT DRIVE BELT
Engine : 4HX
Without air conditioning
B1BP270DB1BP272D
TOOLS
[1] Dynamic tensioner compression lever: (-).0188.Z
[2] Ø 4 mmpeg : (-).0188.Q1
Remove.
WARNING :mark the direction of fitting in case the belt is to be reused.
- Compress the tensioner roller(1)by action at «a» (anti-clockwise), using tool [1].
- Peg at«b», using tool [2].
- Remove the auxiliaries drive belt.
Refit.
- Refit the auxiliaries drive belt.
- Compress the tensioner roller(1)by action at «a»(anti-clockwise), using tool [1].
- Remove the tool[2]at «b».