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

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Engine : XFX
SPECIAL FEATURES : TIGHTENING TORQUES ( m.daN)
(9) Oil sump.
- Pre-tightening0.5 ± 0.1
- Tightening0.8 ± 0.1
(10) Crankshaft hub.
- Tightening4 ± 0.4
- Angular tightening80°
(11) Crankshaft pulley 2.5 ± 0.6
(12) Inlet distibutor (Equipped with a new seal)
- Pre-tightening0.4 ± 0.1
- Tightening0.8 ± 0.1
(13) Air inlet manifold.
- Pre-tightening0.4 ± 0.1
- Tightening0.8 ± 0.1
B1BP1GZD

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49
Engine : XFX
SPECIAL FEATURES : TIGHTENING TORQUES ( m.daN)
(14) Camshaft hubs :
1stmethod(Advised method).
- Tightening2 ± 0.2
- Angular tightening57°
2
ndmethod
- Tightening8 ± 0.8
(15) Guide roller
(16) Timing belt tensioner roller 8 ± 1.2
(17) Camshaft pulley8 ± 1.2
(18) Water pump.
- Pre-tightening0.5 ± 0.1
- Tightening0.8 ± 0.1
B1EP151D

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50
Engine : XFX
SPECIAL FEATURES : TIGHTENING TORQUES ( m.daN)
In the order indicated
(19) Oil pump.
- Pre-tightening0.5 ± 0.1
- Tightening0.8 ± 0.1
B1FP04KC

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51
CYLINDER HEAD
Engine : XFX
Cylinder head gasket identification
Supplier
ERLINGThickness
(Standard)
(mm)
0.75Thickness
reference
Central lug
Exhaust end
Multilayer metallic cylinder head seal.(1) LH cylinder head gasket.
(2) RH cylinder head gasket.
B1DP18YD

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X = MAXIMUM reusable length
Engine : XFX
Cylinder head tightening (m.daN) Cylinder head bolts
NOTE : Oil the threads and under
the heads of the bolts. (Use engine
oil or Molykote G Rapid Plus). In the order indicated
Pre-tightening2 ± 0.2
UntighteningYES
Pre-tightening1.5 ± 0.2
Angular tightening225°
B1DP09VC
XFX
149.5 mm.
CYLINDER HEAD
B1DP18ZD

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CYLINDER HEAD
Engine : XFX
Camshafts
Marking of the camshafts at «d».
(6) Exhaust camshaft (front cylinder head)A 389
(7) Inlet camshaft (front cylinder head)A 423
(8) Inlet camshaft (rear cylinder head)E 422
(9) Exhaust camshaft (rear cylinder head)E 388
Valve clearances when cold.
Hydraulic followers with automatic clearance adjustment.
B1EP150D

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ENGINE SPECIFICATION
Engines : RHY - RHZ - 4HX
Engine identification
Engine : 4HX Engines : RHY-RHZ
References
Compulsory engine plate :
"a"Engine legislative type.
"b" Component reference.
"c"Factory serial no.
B1CP046DB1CP07YD

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CYLINDER HEAD
Engines : RHZ - RHY
Cylinder head gasket identification
Number
of notches at A Thickness
(mm) Engine
platePiston
stand-proud
(mm)
0.47 to 0.605 1.30 ± 0.06 1
0.605 to 0.655 1.35 ± 0.06 2
0.655 to 0.705 1.40 ± 0.06 3
0.705 to 0.755 1.45 ± 0.06 4
0.755 to 0.83 1.50 ± 0.06 5
RHZ
RHY
B1DP15AD
Cylinder head.
- New cylinder head height = 133 mm.
- Maximum permitted deformation = 0.03 mm.
Cylinder head gasket.
Multilayer cylinder head gasket.
Select seal thickness as a function of the piston stand-proud.
Hydraulic followers.
The hydraulic followers have automatic clearance adjustment.

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56
Engines : RHY - RHZ
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 in the
order indicated.
Pre-tightening2 ± 0.2
Tightening6 ± 0.6
Angular tightening220° ± 5°
(Order from 1 to 10)
B1DP05BC
RHY - RHZ
X = 133.3 mm Cylinder head tightening (m.daN) Cylinder head bolts
CYLINDER HEAD
B1DP15ECB1DP13PC

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57
CYLINDER HEAD
Engine : 4HX
Cylinder head gasket identification
Number
of notches
At B At A Thickness
(mm) Engine
platePiston
stand-proud (mm)
0.55 to 0.60 1.25 ± 0.04 1
0.61 to 0.65 1.30 ± 0.04
12
0.66 to 0.70 1.35 ± 0.04 3
0.71 to 0.75 1.40 ± 0.04 4
4HX
Cylinder head.
- New cylinder head height = 133 mm.
- Maximum permitted deformation = 0,03 mm.
Cylinder head gasket.
Multilayer cylinder head gasket.
Select seal thickness as a function of the piston stand-proud.
Hydraulic followers.
The hydraulic followers have automatic clearance adjustment.
B1DP18XD