Engine head Citroen C3 2004 1.G Workshop Manual

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ENGINE
SPECIAL FEATURES TIGHTENING TORQUES (m.daN )
EnginesHFX KFV NFU
Cylinder head
Coolant outlet housing
in plastic
0,8 ± 0,2
in aluminium0,8 ± 0,2
Camshaft bearing caps (TU1JPTU3JP)
Tightening
2 ±0,2
Angular tightening44 °± 4°
Camshaft bearing caps (TU5JP4)
Tightening
2 ± 0,2
Angular tightening50°±5°
Inlet manifold0,8 ± 0,2
Exhaust manifold1,8 ±0,4
Valve rockers adjusting screw1,75 ± 0,25
Sparking plugs3
Camshaft pulley screw (TU1JPTU3JP)3,7 ± 0,2
Camshaft pulley screw (TU5JP4)4,5 ± 0,5
C2

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ENGINE
SPECIAL FEATURES TIGHTENING TORQUES (m.daN )
Engine8HX
Cylinder head
Camshaft bearing covers
Pretightening
0,3 ± 0,1
Tightening1 ± 0,1
Fixing of camshaft subassemblies on cylinder head
Pretightening
0,3 ± 0,1
Tightening1 ± 0,1
Exhaust manifold3 ± 0,3
Camshaft pulley
Pretightening
0,3 ± 0,1
Tightening4,3 ± 0,4
Engine flywheel
Flywheel
Pretightening
1,7 ±0,2
Tightening70°±5°
Clutch mechanism2 ± 0,2
C2

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ENGINESPECIAL FEATURES TIGHTENING TORQUES (m.daN )
Crankshaft
Engine types HFX KFV NFU
Accessories drive pulley0,8 ± 0,2
Pinion fixing on crankshaft10 ± 1 2,5 ± 0,2
Cylinder block
Sump0,8 ± 0,2
Timing belt tensioner roller2 ± 0,2 2,2 ± 0,2
Accessories belt tensioner roller2 ± 0,2 2,5 ± 0,2
Alternator support fixing1,7 ±0,3
Alternator fixing on support3,7 ± 0,3
Cylinder head
Coolant outlet housing0,8 ± 0,2
Camshaft bearing cap
Tightening
2 ± 0,2 2 ± 0,2
Angular tightening44°±4°50° ± 5°
0,8 ± 0,2
Exhaust manifold1,7 ± 0,3 2 ± 0,2
Valve rockers adjusting screw1,75 ±0,25
Sparking plugs2,75 ± 0,25
Camshaft pulley screw8 ± 0,8
C3

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ENGINE
SPECIAL FEATURES TIGHTENING TORQUES (m.daN )
EngineKFU
Crankshaft
Accessories drive pulley0,8 ± 0,2
Pinion fixing on crankshaft
Pretightening
4 ± 0,4
Angular tightening45 ± 4°
Cylinder block
Sump0,8 ± 0,2
Accessories belt guide roller4 ± 0,4
Timing belt tensioner roller2,1 ± 0,2
Accessories belt tensioner roller2,5 ± 0,2
Alternator support2,5 ± 0,3
Crankshaft bearing caps
Tightening
2 ±0,3
Angular tightening44°(reused screws cleaned and greased)
Cylinder head
Coolant outlet housing0,8 ± 0,2
Camshaft bearing caps1 ± 0,2
Camshaft bearing cap covers0,9 ± 0,1
Inlet manifold0,8 ± 0,2
C3

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ENGINESPECIAL FEATURES TIGHTENING TORQUES (m.daN )
Cylinder head
Exhaust manifold1,8 ± 0,2
Sparking plugs2,2 ± 0,2
VVT pulley cap4 ± 0,4
VVT control electrovalve0,8 ± 0,2
VVT inlet camshaft pulley screw
Pretightening
2 ± 0,2
Tightening6,1 ± 0,6
Exhaust camshaft pulley screw4,5 ± 0,4
Flywheel / Clutch
Engine flywheel6,7 ±0,6 (coat the screws with LOCTITE FRENETANCH)
Clutch mechanism2 ± 0,2
Lubrication circuit
Oil pressure switch2 ± 0,2
Oil pump0,9 ± 0,1
Cooling circuit
Coolant pump1 ± 0,1
Coolant outlet housing0,8 ± 0,1
C3

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ENGINESPECIAL FEATURES TIGHTENING TORQUES (m.daN )
Engines 8HX 8HW 8HZ
Cylinder head
Camshaft bearing covers
Pretightening0,5 ±
Tightening1 ±
Fixings of camshaft subassemblies on cylinder head
Pretightening0,5
Tightening1
Exhaust manifold2,5 ± 0,2
Valve cover2,5 ± 0,2
Camshaft pulley4,3 ±0,4
Flywheel
Flywheel
Pretightening1,7 1,7
Tightening70°±5° 75° ± 5°
Clutch mechanism 2 ± 0,2
Lubrication circuit
Oil pump assembly
Pretightening0,5 ± 0,06
Tightening0,9 ± 0,1
Coolant/oil heat exchanger1 ± 0,1
C3 C3 PLURIEL XSARA

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ENGINE
SPECIAL FEATURES TIGHTENING TORQUES (m.daN )
Engines8HV 8HY
Crankshaft
Bearing cap fixing screw
Tightening3 ± 0,3
Angular tightening140° ± 1°,4’
Crankshaft pullet hub
Angular tightening180°±5°
Cylinder block
Oil sump1 ±0,1
Timing belt tensioner roller 4 ± 0,4
Timing belt guide roller
2,5 ±0,2
Timing belt guide roller support
Cylinder head
Camshaft bearing cap cover
1 ±0,1
Inlet manifold
Exhaust manifold2,5 ± 0,2
Cylinder head cover Screws (M6) to 1 ± 0,2
Camshaft pinion4,3 ± 0,4
Fuel high pressure pump pinion 5 ± 0,5
C3

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ENGINE
SPECIAL FEATURES TIGHTENING TORQUES (m.daN )
CYLINDER HEAD (mm)
Engine types KFW NFV NFU
Maximum permissible bow0,05
Gasket surface regrinding 0,20
TIGHTENING TORQUES (m.daN)
Crankshaft bearing Pretightening 2 ± 0,2 2 ± 0,2
screws Angular tighten 45° 50° ± 5°
Connecting rod screwsTightening3,8 ±0,4
Flywheel screw Tightening 6,5 ± 0,7
Crankshaft pinion screw Pretightening
Angular tighten10 ±1
Camshaft pulley screw Pretightening
Angular tighten 8 ± 0,8
Camshaft hubs 8 ± 0,8
Camshaft hub screwTightening1 ± 0,1
XSARA XSARA PICASSO

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ENGINESPECIAL FEATURES TIGHTENING TORQUES (m.daN )
CYLINDER HEAD (mm)
Engine types 6FZ RFN RFS WJY RHY RHZ
Maximum permissible bow 0,05 0,03
Gasket surface regrinding 0,30 0,20 0,40
TIGHTENING TORQUES ( m.daN)
Pretightening (1) Ø 11 : 1 ± 0,1 2 ± 0,1 2,5 ± 0,3
(2) Ø 6 : 1 ± 0,1
Slackening Ø 11 (only)
Tightening Ø 11 to 1 ± 0,1 8,5 ± 0,8 7 ± 0,7
Crankshaft then to 2 ± 0,1
bearing screws Tightening Angular Ø 11 at 70° ± 5° 60° ± 6° 60° ± 6°
Tightening Ø 6 to 1 ± 0,1
Pretightening 1 ± 0,1 4 ± 0,4 2 ± 0,2
ConnectingSlackening 180° (1/2 turn)
rod screws Tightening 2,3 ± 0,2 2,3 ± 0,2 2± 0,2
Angular tightening46°±5°46° ±4,6° 70° ± 7° 70° ± 7°
XSARA XSARA PICASSO

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ENGINE
SPECIAL FEATURES TIGHTENING TORQUES (m.daN )
Engines9HZ 9HY
Cylinder head
Camshaft bearing covers
Pretightening0,5 ± 0,1
Tightening1 ± 0,1
Exhaust manifold 3 ± 0,3
Camshaft pulley
Pretightening2 ± 0,2
Angular tightening50 ±5°
Cylinder head
Pretightening2 ± 0,2
Tightening4 ± 0,5
Angular tightening260 ± 5°
EGR valve1 ±0,1
Flywheel Clutch
Flywheel
Pretightening3 ± 0,3
Angular tightening90 ±5°
Clutch mechanism2 ± 0,2
XSARA PICASSO