2005 Citroen C4 Injector

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ENGINESPECIAL FEATURES - TIGHTENING TORQUES (m.daN)
Injection circuit
Union on injector
39Pre-tightening2 ± 0,5
Tightening2,5 ± 0,3
Injector fixing flange but
40Pre-tightening0,5 ± 0,5
Angular tightening65°±5°
41 Diesel injection pump on support 2,2 ± 0,3
42 Diesel injection pump pulley 5 ± 0,5
43 Diesel fuel high pressure pump front support 2 ± 0,5
Engine: 9HX
B1HP22SD
C4
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ENGINESPECIAL FEATURES - TIGHTENING TORQUES (m.daN)
Injection circuit
Union on injector
39Pre-tightening2 ± 0,5
Tightening2,5 ± 0,3
Injector fixing flange but
40Pre-tightening0,5 ± 0,5
Angular tightening65°±5°
41 Diesel injection pump on support 2,2 ± 0,3
42 Diesel injection pump pulley 5 ± 0,5
43 Diesel fuel high pressure pump front support 2 ± 0,5
Engines: 9HY - 9HZ
B1HP22SD
C4
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ENGINESPECIAL FEATURES - TIGHTENING TORQUES (m.daN)
Engines9HZ - 9HY
Lubrication circuit
Oil pump assembly
Pre-tightening0,5 ± 0,1
Tightening0,9 ± 0,1
Oil/coolant heat exchanger1 ± 0,2
Turbocharger lubrication pipe3 ± 0,5
Diesel injection circuit
Injector fixing flange nut
Pre-tightening4 ± 0,1
Angular tightening65°±5°
Fuel high pressure common injection rail on engine block 2,2 ± 0,2
Union on fuel high pressure common injection rail
Pre-tightening1,7 ± 0,2
Tightening2,2 ± 0,2
Diesel injection pump on support2,2 ± 0,2
Union on injector diesel
Pre-tightening2 ± 0,5
Tightening2,5 ± 0,3
XSARA PICASSO
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ENGINE
SPECIAL FEATURES - TIGHTENING TORQUES (m.daN)
Flywheel
Flywheel4,8 ± 0,4
Clutch mechanism2 ± 0,2
Lubrication circuit
Oil pump2,3 ± 0,2
Coolant/oil heat exchanger7 ± 0,7
Injection circuit
Injector on cylinder head9 ± 0,9
Diesel fuel heater1,5 ± 0,1
Injection pump2 ± 0,2
Union on injector2,5 ± 0,2
Injection pump pulley2,3 ± 0,2
Cooling circuit
Coolant pump1,5 ± 0,1
Coolant inlet housing1,8 ± 0,1 Engine: WJY
XSARA
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ENGINESPECIAL FEATURES - TIGHTENING TORQUES (m.daN)
Flywheel
Flywheel4,8 ± 0,4
Clutch mechanism2 ± 0,2
Lubrication circuit
Oil pump1,6 ± 0,2
Coolant oil heat exchanger7 ± 0,7
Turbocharger lubrication pipe
Engine end4,8 ± 0,4
Turbocharger end2,2 ± 0,2
Injection circuit
Injector fixing flange nut3 ± 0,3
Unions on fuel high pressure common injection rail2 ± 0,2
Injection pump on support2,3 ± 0,2
Union on diesel injector2 ± 0,2
Injection pump pulley5 ± 0,5
Union on fuel high pressure pump2 ± 0,2
Cooling circuit
Coolant pump1,5 ± 0,1
Coolant inlet housing1,8 ± 0,1 Engines: RHY - RHZ
XSARA
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ENGINESPECIAL FEATURES - TIGHTENING TORQUES (m.daN)
Injection circuit
28 High pressure pipe union on injector 2,5 ± 0,2
Diesel injector nuts
29Do up both nuts by hand
Tightening0,4 ± 0,3
Angular tightening45°±5°
30 Fuel high pressure pump screw 2,25 ± 0,3
31 High pressure pipe union on fuel high pressure pump 2,5 ± 0,2
32 Fuel high pressure supply common rail nuts 3 ± 0,3
33 Union on fuel high pressure supply common rail 2,5 ± 0,2
Engine: RHR
B1HP22LD
C4
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INJECTION
CHECKS: LOW PRESSURE FUEL SUPPLY CIRCUIT
Tools.
[1] Ø 10 mmlow pressure connector: 4215-T
[2]Pressure gauge for testing boost pressure: 4073-T.A Toolkit 4073-T
IMPERATIV: Respect the safety and cleanliness specific to high pressure diesel injection
engines.
Remove the air filter duct.
Link tool [1]in series, downstream of the injectors, between the fuel high pressure pump and the
fuel filter at «a»and «b».
WARNING: Any checking of pressure downstream of the fuel filter is prohibited.
Switch on the ignition.
Check the pressure :
Vacuum measured by the pressure gauge [2]:
Vacuum Observations
10 ± 0,5 cmHgEngine driven by the starter motor.
20 ± 0,5 cmHgEngine running under full load
60 ± 0,5 cmHgSupply circuit obstructed
(full tank strainer, piping, fuel filter)
B1CP0GFD
Engines: 9HX - 9HY - 9HZ
C4
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INJECTION
CHECKS: LOW PRESSURE FUEL SUPPLY CIRCUIT
Tools.
[1] Ø 10 mm low pressure connector: 4215-T
[2] Pressure gauge for testing boost pressure: 4073-T.A Toolkit 4073-T
IMPERATIVE: Respect the safety and cleanliness specific to high pressure diesel injection
engines.
Remove the air filter duct.
Link tool [1]in series, downstream of the injectors, between the fuel high pressure pump and the
fuel filter at «a»and «b».
WARNING: Any checking of pressure downstream of the fuel filter is prohibited.
Switch on the ignition.
ESSENTIAL: Check that the tool [2] is clean.
Check the negative pressure according to the table below:
Vacuum Observations
10 ± 05 cmhgEngine driven by the starter motor
20 ± 20 cmhgEngine running under full load
60 ± 05 cmhgSupply circuit obstructed
(full tank strainer, piping, fuel filter
B1BP2PHC
Engines: 9HZ - 9HY
XSARA PICASSO
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