pressure Citroen C4 2005 2.G Repair Manual

Downloaded from www.Manualslib.com manuals search engine 294
INJECTION
CHECKS: TURBO PRESSURE
Tools.
[1]Pressure gauge for checking boost pressure: 4073-T.A Kit 4073-T
[2]Sleeve for checking boost pressure: 4185-T
Checks.
IMPERATIVE: respect the following checking requirements: Engine at running temperature.
Vehicle running at full load.
Preparation.
Remove the collar (3)and the sleeve.
Insert the tool [2]between the pipe (1)and the duct (2).
Position tool [1]in the vehicle.
Connect the pressure gauge [1]to the tool [2] with its tube «a»long enough for the gauge to be
positioned inside the vehicle.
Procedure.
Start the engine.
Engage first gearand start the engine.
Engage the gears up to third gear.
Decelerate to 2000 rpm.
Gradually accelerate.
Check the pressure: 0.95 ± 0.05 bar.
Remove the tools, refit the collars (3) and the sleeve.
B1BP1ZXD
Engine: RHY
XSARA PICASSO
Angl.-t2-page283-305-2005 9/01/06 10:18 Page 294

Downloaded from www.Manualslib.com manuals search engine 295
INJECTION
CHECKS: TURBO PRESSURE
Tools.
[1]Pressure gauge for checking boost pressure: 4073-T.A Kit 4073-T
[2] Sleeve for checking boost pressure: 4185-T
[3]Adaptor sleeve: 4229-T
Checks.
IMPERATIVE: respect the following checking requirements: Engine at running temperature.
Vehicle in running order at full load.
Preparation.
Remove the collar fixing (3).
Insert the tool [2]connected with tool [3], between the pipe (1)and the duct (2).
Position tool [1]in the vehicle.
Connect the sleeve [2]to the tool [1]with its tube «a».
Procedure.
Start the engine.
Engage first gear and start the engine.
Engage the gears up to third gear.
Decelerate to 1000 rpm.
Accelerate hard, and check the pressure: 0.6 ± 0.05 bar
(1500 rpm).
Accelerate freely in kick-down (changing from fourthto third gear).
Check the pressure: 0.95 ± 0.05 bar (between 2500and 3500rpm).
Remove the tools, reposition the pipe (1)and refit the collar (3).
B1HP12JD
Engine: RHZ
XSARA PICASSO
Angl.-t2-page283-305-2005 9/01/06 10:18 Page 295

Downloaded from www.Manualslib.com manuals search engine 296
INJECTION
CHECKING THE AIR SUPPLY CIRCUIT
Tool.
[1]Manual pressure-vacuum pump: FACOM DA 16
Vacuum pump:
- Connect the tool [1]onto the vacuum pump (1).
- Start the engine.
- Wait 30 seconds.
The vacuum value should be 0.9 ± 0.1 barat idle.
B1HP1K8D
Engines: 8HX - 8HZ
XSARA
Angl.-t2-page283-305-2005 9/01/06 10:18 Page 296

Downloaded from www.Manualslib.com manuals search engine 297
INJECTION
CHECKING THE AIR SUPPLY CIRCUIT
Tool.
[1]Manual pressure-vacuum pump: FACOM DA 16
Checks.
Vacuum pump.
Connect the tool [1]into the vacuum pump (1).
Start the engine.
The vacuum value should be 0.9 ± 0.1 barat idle
(after 30 secondsof operation).
NOTE:The exhaust gas recycling valve is not linked to the air supply circuit.
The exhaust gas recycling electrovalve is controlled by the engine ECU.
Turbocharging pressure regulation valve.
Connect the tool [1]on the valve (2).
Apply a vacuum of approx. 0.8 bar.
Rod "a"should move 6 ± 2 mm.B1HP1UGC
B1HP22RC
Engine: 9HX
C4
Angl.-t2-page283-305-2005 9/01/06 10:18 Page 297

Downloaded from www.Manualslib.com manuals search engine 298
INJECTION
CHECKING THE AIR SUPPLY CIRCUIT
Tool.
[1]Manual pressure-vacuum pump: FACOM DA 16
Checks.
Vacuum pump.
Connect the tool [1]into the vacuum pump (1).
Start the engine.
Wait 30 seconds.
The vacuum value should be 0.9 ± 0.1 barat idle.
NOTE:The exhaust gas recycling valve is not linked to the air supply circuit.
The exhaust gas recycling electrovalve is controlled by the engine ECU.
Turbocharging pressure regulation valve.
Connect the tool [1]on the valve (2)
(tube identified by the colour grey).
Apply a vacuum of approx. 0.8 bar.
Rod "a"should move 12 ± 2 mm.
B1HP1UGC
B1HP1UHC
Engines: 9HY - 9HZ
C4
Angl.-t2-page283-305-2005 9/01/06 10:18 Page 298

Downloaded from www.Manualslib.com manuals search engine 299
INJECTION
CHECKING THE AIR SUPPLY CIRCUIT
B1BP33ZC
B1BP340C
Engine: RHR
B1BP341C
B1BP342C
Tool.
[1]Manual pressure-vacuum pump: FACOM DA 16
IMPERATIVE: Respect the safety and cleanliness specific to high pressure diesel
injection engines.
WARNING: After switching off the ignition, wait 15 minutes before disconnecting
the battery
(to guarantee memorisation of the initialisations of the different ECUS).
Checking the vacuum source
(vacuum pump).
Connect the tool [1] on the take-off «a».
Start the engine.
The value should be: 1 ± 0,2.
Turbocharging pressure electrovalve.
Connect the tool [1]on the vacuum supply «b»of the electrovalve (1).
Start the engine.
The value should be: 1 ± 0,2.
Cold air circuit electrovalve.
Connect the tool [1]on the vacuum supply «c»of the electrovalve (2).
Start the engine.
The value should be: 1 ± 0,2.
Warm air circuit electrovalve.
Connect the tool [1]on the vacuum supply «d»of the electrovalve (3).
Start the engine.
The value should be: 1 ± 0,2.
C4
Angl.-t2-page283-305-2005 9/01/06 10:18 Page 299

Downloaded from www.Manualslib.com manuals search engine 301
INJECTION
CHECKING THE AIR SUPPLY CIRCUIT
Tool.
[1]Manual vacuum pump: FACOM DA 16
IMPERATIVE: Respect the safety and cleanliness requirements.
Vacuum pump.
Connect the tool [1]on the vacuum pump (1).
Start the engine.
Pressure should be 0.8 barat 780 rpm.
Boost pressure regulator electrovalve.
Connect the tool [1]between the electrovalve (2)and the valve (3)of the boost pressure regulator.
Compare readings with the values in the table below.
Engine speed (rpm) Pressure (bar)
780 0,6
4000 0,25
Pressure regulator valve.
Connect the tool [1]on the valve (3).
Appy a pressure of 0.5 barto activate the rod "a".
Rod "a"should move 12 mm.
B1HP12FD
Engines: RHY - RHZ
XSARA PICASSO
Angl.-t2-page283-305-2005 9/01/06 10:18 Page 301

Downloaded from www.Manualslib.com manuals search engine 302
INJECTION
CHECKS: EXHAUST GASES RECYCLING CIRCUIT
Tool.
[1] Manual pressure-vacuum pump: FACOM DA 16
IMPERATIVE: Respect the safety and cleanliness requirements.
EGR valve.
Connect tool [1] on the capsule take-off (2).
Apply a vacuum of approx. 0,6 barseveral times to activate the rod «a».
In abruptly suppressing the vacuum, the valve should click and lock itself back on its seating.
Regulation electrovalve (EGR).
Check to be performed between the electrovalve (1)and the EGR valve (2).
Link the tool [1]in series, between the electrovalve (1)and the capsule (2).
Compare the values noted with those in the table below.
Engine speed (rpm) Vacuum value
780 0,5 bar
2500 0 bar
B1HP1K6D
Engines: 8HX - 8HZ
XSARA
Angl.-t2-page283-305-2005 9/01/06 10:18 Page 302

Downloaded from www.Manualslib.com manuals search engine 347
CLUTCH
GEARBOX
TRANSMISSION
TIGHTENING TORQUES: AL4 AUTOMATIC GEARBOX
Engines: NFU - RFJ
B2CP3EDD
B2CP3X7D
Tightening torques (m.daN).
(1) Fixing of the electrovalve for modulation of the flow
of oil into the exchanger (EPDE): 1 ± 0,2
(2)Heat exchanger fixing: 5 ± 1
(3) Output speed sensor fixing
(4)Output speed sensor fixing: 1 ± 0,2
(5)Oil overflow and drain fixing(X = 48 mm)
: 0,9 ± 0,2
(6)Oil level plug: 3,3 ± 0,5
(7)Oil pressure sensor fixing: 0,8 ± 0,1
C4 - XSARA - XSARA PICASSO
Angl.-t2-page306-360-2005 9/01/06 10:20 Page 347

Downloaded from www.Manualslib.com manuals search engine 361
AXLES
SUSPENSION
STEERING
AXLE GEOMETRY
Conditions for checking and adjusting
Vehicle heights at reference height
Rear height Front height
L2 L1
Tools : [1] Gauge for measuring the the wheel radius, 4 bolts: 4300-T.
Tyres inflated to correct pressures. Vehicle at reference height.
Steering rack locked at mid point
(see corresponding operation).
H1 = R1 - L1
H1 = Measurement between the measuring zone underneath the front
subframe and the ground.
R1 = Front wheel radius under load.
L1 =Distance between the wheel axis and the measuring zone underneath
the front subframe.H2 = R2 + L2
H2 = Measurement between the measuring zone underneath the rear sill
and the ground.
R2 =Rear wheel radius under load.
L2 =Distance between the wheel axis and the measuring zone underneath
the rear sill.
E1AP0F3D
C4
Angl.-t2-page361-397-2005 9/01/06 10:22 Page 361