head Citroen C4 2005 2.G User Guide

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ENGINE
SPECIAL FEATURES - TIGHTENING TORQUES (m.daN)
Cylinder head
Cylinder head bolts (*)
1st pre-tightening1,5 ± 0,1
2nd pre-tightening5 ± 0,5
11Angular slackening360°
Tightening2 ± 0,2
Angular tightening285° ± 5°
Camshaft bearing cap cover screws (*)
12Pre-tightening0,5
Tightening1 ± 0,1
13 EGR valve screw 0,8 ± 0,1
14 Valve for injection of air to the exhaust 0,8 ± 0,2
15 Inlet manifold stud 0,8 ± 0,1
16 Inlet manifold fixing nuts 2,2 ± 0,5
17 Sparking plugs 2,7 ± 0,2
Engine: RFN
B1BP34MP
(*) = IMPERATIVE: Respect the tightening sequence (see following page).
C4
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78
SPECIAL FEATURES - TIGHTENING TORQUES (m.daN)
Engine: RFN
B1DP03XDB1DP05BC
IMPERATIVE: Respect the tightening sequence.
Cylinder head
(1) Valve cover screws
(11) Cylinder head bolts(12) Camshaft bearing cap screws
C4
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ENGINE
SPECIAL FEATURES - TIGHTENING TORQUES (m.daN)
Engine: RFN
B1GP08WCB1DP05BC
IMPERATIVE: Respect the tightening sequence.
Cylinder head
(22) Crankshaft bearing cap screws
(24) Con rod cap screws(21) Flywheel screws(19) Coolant pump screws
B1CP0GCC
C4
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ENGINESPECIAL FEATURES - TIGHTENING TORQUES (m.daN)
Cylinder head
1 Exhaust manifold stud 0,7 ± 0,1
Exhaust manifold nuts
2Tightening on heat shield2,5 ± 0,2
Tightening apart from on heat shield3,5 ± 0,3
3 Oxygen sensor 4,7 ± 0,5
Coolant outlet housing fixing
4Tightening of the nuts1 ± 0,2
Tightening of the screws1 ± 0,1
5 Thermostat fixing screw 0,8 ± 0,1
6 Coolant outlet housing fixing stud 0,3 ± 0,1
7 Engine coolant temperature sensor 1,7 ± 0,1
8 Motorised butterfly housing fixing screws 0,8 ± 0,1
9 Inlet manifold screws 2,2 ± 0,4
10 Inlet manifold fixing nuts 2,2 ± 0,5
11 Inlet manifold stud 0,8 ± 0,1
Engine: RFK
B1BP35QP
(*) = IMPERATIVE: Respect the tightening sequence(see following page).
C4
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ENGINE
SPECIAL FEATURES - TIGHTENING TORQUES (m.daN)
Cylinder head
Cylinder head bolts (*)
1st pre-tightening1,5 ± 0,1
122nd pre-tightening5 ± 0,5
Angular slackening360°
Tightening2 ± 0,2
Angular tightening285° ± 5°
Valve cover screws (*)
13Pre-tightening0,5
Tightening1,1 ± 0,1
14 Sparking plugs 2,7 ± 0,2
Camshaft bearing cap cover screws (*)
15Pre-tightening0,5
Tightening1,1 ± 0,1
16 Valve for injection of air to the exhaust 0,9 ± 0,2
Engine: RFK
B1BP35QP
(*) = IMPERATIVE: Respect the tightening sequence (see following page).
C4
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ENGINESPECIAL FEATURES - TIGHTENING TORQUES (m.daN)
Engine: RFK
B1DP03XDB1DP05BC
IMPERATIVE: Respect the tightening sequence.
Cylinder head
(12) Valve cover screws
(13) Cylinder head bolts(15) Camshaft bearing cap screws
C4
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ENGINE
91
SPECIAL FEATURES - TIGHTENING TORQUES (m.daN)
Engine: RFK
B1GP08WCB1DP05BC
IMPERATIVE: Respect the tightening sequence.
Cylinder head
(21) Crankshaft bearing cap screws
(23) Con rod cap screws(20) Flywheel screws(18) Coolant pump screws
B1CP0GCC
C4
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ENGINE
SPECIAL FEATURES - TIGHTENING TORQUES (m.daN)
Engines8HX 8HZ
Cylinder head
Camshaft bearing covers
Pre-tightening0,5
Tightening1
Fixing of camshaft sub-assemblies on cylinder head
Pre-tightening0,5
Tightening1
Exhaust manifold2,5 ± 0,2
Valve cover2,5 ± 0,2
Camshaft pulley4,3 ± 0,4
Flywheel
Flywheel
Pre-tightening1,7 1,7
Angular tightening70°±5° 75°±5°
Clutch mechanism2 ± 0,2
Lubrication circuit
Oil pump assembly
Pre-tightening0,5 ± 0,06
Tightening0,9 ± 0,1
Coolant/oil heat exchanger1 ± 0,1
XSARA
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ENGINESPECIAL FEATURES - TIGHTENING TORQUES (m.daN)
Cylinder head
1 Air inlet manifold 1 ± 0,1
2 Oil trap 1 ± 0,1
Camshaft bearing covers
3Pre-tightening0,5 ± 0,1
Tightening1 ± 0,1
Engine: 9HY
B1BP39YPB1DP1D7D
(3) Camshaft bearing cover screws
(4) Camshaft bearing cover studs
C4
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ENGINE
SPECIAL FEATURES - TIGHTENING TORQUES (m.daN)
Cylinder head
Camshaft bearing cover studs
4Pre-tightening0,5 ± 0,1
Tightening1 ± 0,1
5 Exhaust gas recycling electrovalve (EGR) 1 ± 0,1
Cylinder head
6Pre-tightening2 ± 0,2
Tightening4 ± 0,5
Angular tightening260° ± 5°
7 Vacuum pump 1,8 ± 0,2
Coolant outlet housing
8Pre-tightening0,3 ± 0,1
Tightening0,7 ± 0,1
Engine: 9HX
B1DP05BC
(6) Sequence for tightening the cylinder head bolts
B1BP39YP
C4
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