high pressure Citroen XSARA 2004 1.G Workshop Manual

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ENGINESPECIAL FEATURES TIGHTENING TORQUES (m.daN )
Engine8HX
Lubrication circuit
Oil pump assembly
Pretightening
0,5 ± 0,1
Tightening0,9 ± 0,1
Coolant/oil heat exchanger1 ± 0,1
Diesel injection circuit
Sphericalbase screws for diesel injection fixing fork2,5 ± 0,2
Fuel high pressure common injection rail on engine block2,2 ± 0,2
Unions on fuel high pressure common injection rail2,5 ± 0,2
Diesel injection pump on support2,2 ± 0,2
Union on diesel injection2,5 ±0,2
Diesel injection pump pulley5 ± 0,5
Union on diesel high pressure pump2,5 ± 0,2
Cooling circuit
Coolant pump
Pretightening
0,3 ±0,1
Tightening0,9 ± 0,1
Coolant outlet housing
Pretightening
0,3 ±0,1
Tightening0,7 ± 0,1
C2

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ENGINE
SPECIAL FEATURES TIGHTENING TORQUES (m.daN )
Engines8HX 8HW 8HZ
Diesel injection circuit
Sphericalbase screws for diesel injection fixing fork 0,3 ± 0,1Fuel high pressure common injection rail on engine block 2 ± 0,2
Unions on fuel high pressure common injection rail
Pretightening1,7± 0,2
Tightening2,25 ± 0,2
Diesel injection pump on support
Union on diesel injection 2,25 ± 0,2
Diesel injection pump pulley 5 ± 0,5
Union on diesel high pressure pump2,25 ±0,2
Cooling circuit
Coolant pump
Pretightening0,3 ± 0,06
Tightening1 ± 0,1
Coolant outlet housing
Pretightening0,3 ± 0,06
Tightening0,7 ±0,08
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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ENGINESPECIAL FEATURES TIGHTENING TORQUES (m.daN )
Engines8HV 8HY
Flywheel Clutch
Flywheel 1,7 ± 0,2
Clutch mechanism 2 ± 0,2
Lubrication circuit
Oil pump assembly0,9 ± 0,1
Oil/coolant heat exchanger 1 ± 0,1
Turbocharger lubrication pipe2,2 ± 0,2
Injection circuit
Injector fixing flange nut
Tightening0,4 ±0,1
Angular tightening65° ± 5°
Fuel high pressure pump
Union on diesel injector
Fuel high pressure pump pinion 5 ± 0,5
Union on fuel high pressure pump2,3 ± 0,2
Cooling circuit
Coolant pump1 ± 0,2±
C3

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ENGINESPECIAL FEATURES TIGHTENING TORQUES (m.daN )
Engines9HZ 9HY
Lubrication circuit
Oil pump assembly
Pretightening0,5 ± 0,1
Tightening0,9 ± 0,1
Oil/coolant heat exchanger 1 ± 0,2
Turbocharger lubrication pipe3 ± 0,5
Diesel injection circuit
Injector fixing flange nut
Pretightening4 ± 0,1
Angular tightening65° ± 5°
Fuel high pressure common injection rail on engine block 2,2 ± 0,2Union on fuel high pressure common injection rail
Pretightening1,7 ±0,2
Tightening2,2 ±0,2
Diesel injection pump on support2,2 ± 0,2
Union on diesel injector
Pretightening2 ± 0,5
Tightening2,5 ±0,3
XSARA PICASSO

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XSARA PICASSO
ENGINE
SPECIAL FEATURES TIGHTENING TORQUES (m.daN )
Engines9HZ 9HY
Diesel injection circuit
Diesel injection pump pulley5 ± 0,5
Union on fuel high pressure pump
Pretightening2 ± 0,5
Tightening2,5 ± 0,3
Cooling circuit
Coolant pump
Pretightening0,3 ± 0,1
Tightening0,9 ±0,1
Coolant outlet housing
Pretightening0,3 ± 0,1
Tightening0,7 ±0,1

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ENGINE
XSARA
AUXILIARY EQUIPMENT DRIVE BELT 2002
Tools.
[1]
Dynamic tensioner compression lever: ().0188.Z
[2]Peg for dynamic tensioner roller: ().0194.F
Removing.
IMPERATIVE: Respect the safety and cleanliness requirements specific to high pressure
diesel injection engines (HDi).
Remove:
The front RH wheel.
The underengine sounddeadening.
The splashshield.
WARNING: Mark the direction of fitting of the accessories drive belt, if it is to be reused.
Compress the tensioner roller (1)by acting at «a»(clockwise), using tool [1].
Peg at «b», using tool [2].
Keeping the tensioner roller (1)compressed, remove the accessories drive belt.
IMPERATIVE: Check that the rollers (1) and (2) can turn freely (without play and without
tight spots).B1BP2VZD
Engine: 8HZ

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ENGINECHECKING AND SETTING THE VALVE TIMING
Engines: 8HX 8HW 8HZ
B1BP2LXC
Tools.
[1]
Pliers for removing plastic pegs : 7504T
[2]Lever for detensioning the dynamic tensioner roller: ().0194.E
[3]Engine flywheel setting peg: ().0194.C
[4]Camshaft setting peg: ().0194.B
[5]Crankshaft and high pressure pump setting peg: ().0194.A
Preliminar
y operations.Remove:
The front RH wheel.
The front RH splashshield, using tool
[1].
The clips of the electrical harness on the upper timing cover. The accessories belt, using tool
[2](see corresponding operation).
Check ing the setting.
Disconnect the battery negative cable.
Remove the upper timing cover (1).
Rotate the engine using the screw (2)of the crankshaft pulley.
NOTE:The locking hole is located under the crankshaft bearing cap cover.
Undo the screw (2).
Detension the auxiliary drive belt dynamic tensioner roller, using tool [2].
C2 C3 C3 PLURIEL XSARA

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185
CHECKING AND SETTING THE VALVE TIMING
Engines: 8HX 8HW 8HZ
B1EP18EC
Checking the setting (continued).
Remove:
the accessories drive belt.
the accessories drive pulley.
the lower timing cover
(3).IMPERATIVE: The magnetic track should show no signs of damage
and should not be approached by any other source of magnetism.
Reposition the screw (2).
Remove tool [3].
Rotate the engine by means of the crankshaft pinion screw (2)(clock
wise), to bring it to the pegging position.
Position the tool [4].
Peg the crankshaft pinion (1), using tool [5].
Peg the high pressure pump pinion, using tool [5].NOTE:Index «a»of the roller tensioner must be centred within the
area «b».
Check the correct positioning of index «a».
Remove tools [4]and [5].
Rotate the engine ten times.Fit the tools
[4]and [5].
If pegging is not possible, carry out the operation to remove/refit the
timing belt
(see corresponding operation).
B1JP03SCB1EP18DCB1EP18FC
C2 C3 C3 PLURIEL XSARA

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187
CHECKING AND SETTING THE VALVE TIMING
Engines: 8HX 8HW 8HZ
Setting the timing (contin
ued).
Remove the tool [3].
Rotate the engine by means of the crankshaft pinion screw
(2)(clock
wise), to bring it to the pegging position.
Peg the camshaft pulley, using tool
[4].
Peg:
The crankshaft pinion
(6), using tool [5].
The high pressure pump pinion, using tool [5].
Support the engine with the aid of a roller jack equipped with a chock.
Remove:
The RH engine support
(7).
The intermediate engine support (right hand side)(8).
B1JP03SCB1EP18DCB1EP195CB1BP2LYC
C2 C3 C3 PLURIEL XSARA