2004 Citroen BERLINGO Table

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ENGINE
CHECKING THE OIL PRESSURE
To be read with the Petrol and Diesel correspondence tables
XSARA PICASSO
Plaque engine NFV 6FZ RFN 9HZ 9HY RHY
Temperature (°C) 90°C 80°C 90°C
Pressure (Bars) 3 4 3,3 6,3 1,5 5 1,3 3,5 2 4
Rpm 2000 4000 1000 4000 1000 3000 1000 4000 1000 4000
Tools (Kit 4103T)
2279T.Bis X X X X X X
4103T.B X X X X X X
7001T X
4202T X X X
1503JXX
NOTE:
The oil pressure should be checked with the engine hot, after the oil level has been checked.
XSARA PICASSO

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INJECTION
SPECIFICATIONS OF THE DELPHI DIESEL INJECTION PUMP XSARA
Engine
typePump
Type
ReferenceStatic timing
Initial advance
Compression
Time
(cylinder N° 4)Dynamic
timing
checking
(at idle)Reference
InjectorInjector
holder
+ injectorCode
colourInjector
needle lift
pressure
(Bar)Adjustments (rpm) Max. speed
Fast
idlingAntistall
IdlingUnladen
rpmLaden
rpm
WJYDWLP 12
R 8448 B/*RDNO
SDC
6903LDCR
0260
IAA135,5
±5950
±25875
±25875
±255350
± 125
Engine
TDC
Pegging hole.
Value «X»
engraved on
the pump.
(*) = See table page: 251.1500
+ 3
mm
shim

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INJECTION
CHECKS: LOW PRESSURE FUEL SUPPLY CIRCUIT
Engines: 8HX 8HW
Tools.
[1] Ø 10 mmlow pressure connector: 4215T.
[2]Pressure gauge for testing boost pressure: 4073T.A Tool kit 4073T
IMPERATIVE: Respect the safety and cleanliness specific to high pressure diesel
injection engines.
Link tools [1]and [2]in series between the fuel high pressure pump and the fuel filter.
ESSENTIAL:Check that the tool [2] is clean.
Check the negative pressure according to the table below:
Vacuum Observations
10 ±5 cmHg
Engine driven by the starter motor
20 ±5 cmHg
60 ±5 cmHgEngine running under full load
Supply circuit obstructed
(full tank
strainer, piping, fuel filter).
B1BP2NWC
C2 C3

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INJECTION
CHECKS: LOW PRESSURE FUEL SUPPLY CIRCUIT
Engines: 8HV 8HY 9HZ 9HY
Tools.
[1] Ø 10 mmlow pressure connector: 4215T.
[2]Pressure gauge for testing boost pressure: 4073T.A Tool kit 4073T
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:
VacuumObservations
10 ±05 cmhg
Engine driven by the starter motor
20 ± 20 cmhg
60 ± 05 cmhgEngine running under full load
Supply circuit obstructed
(full tank
strainer, piping, fuel filter).B1BP2PHC
C3 XSARA PICASSO

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INJECTION
XSARA PICASSO CHECKS: LOW PRESSURE FUEL SUPPLY CIRCUIT
Engines: RHY RHZ (continued)
Checks on pressure: dynamic.Engine running, at idle (normal functioning):
Fuel supply pressure shown by the pressure gauge [3] = 2 ± 0.4 Bar. Fuel return pressure shown by the pressure gauge [3] = 0.7 ± 0.4 Bar.
Abnormal functioning
Impossible to start the engine:
Fuel supply pressure less than 0.8 Bar:
Check the low pressure regulator incorporated in the filter (locked open). Check the high pressure pump distribution valve (locked shut).
Check: diesel injector return flow.(Table below)
Uncouple the diesel injector return pipe.
Fuel supply pressure Fuel return pressure Checks
Between 3and 3.5 Bar 0,7 ± 0,2 BarCheck the condition of the diesel filter
More than
3.5 Bar
More than 3.5 Bar
Less than 0.7 Bar
More than 0.7 Bar
Check the low pressure regulator incorporated in
the filter (locked shut): replace.
Check the fuel return circuit
(pipe pinched or trapped…)
Between 0.8 and 1.5 BarLess than 0.7 BarCheck the fuel suppy circuit:
Booster pump (low pressure), piping.
Check:
Observe:
The flow should be drop by drop.
Diesel injector functioning correctly.
Excessive fuel return.
Diesel injector locked shut.

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INJECTION
CHECKING THE AIR SUPPLY CIRCUIT
Engines: RHY RHZ
XSARA PICASSO
Tools.
[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.
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 be moved 12 mm.
Engine speed (rpm) Pressure (Bar)
780 0,6
4000 0,25
B1HP12FD

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INJECTION
CHECKS: EXHAUST GASES RECYCLING CIRCUIT
Engines: 8HX 8HW
Engines: 8HV 8HY
Tools.
[1]
Manual pressurevacuum pump: FACOM DA 16
IMPERATIVE: Respect the safety and cleanliness specific to high pressure diesel
injection (HDi) engines.
EGR v
alve.Connect tool [1]on the capsule takeoff (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).(Engine:8HX8HW).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.
Regulation electrovalve (EGR).(Engine:8HV8HY).Check to be performed between the electrovalve (2)and the EGR valve (1).
Link the tool [1] in series, between the electrovalve (2)and the capsule (1).
Compare the values noted with those in the table below.
Engine speed (rpm) Vacuum value
780 0,5
2500 0
B1HP15GD
B1HP1K6D
C2 C3

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INJECTION
CHECKS: EXHAUST GASES RECYCLING CIRCUIT
Engines: RHY RHZ
XSARA PICASSO
Tools.
[1]
Manual vacuum pump : FACOM DA 16
IMPERATIVE: Respect the safety and cleanliness requirements.
EGR valve.
Connect the tool [1]to the capsule union (1).
Apply several times in succession a vacuum of approx.0.6 barto activate the rod "a".
In abrupt reaction to the vacuum, the valve should close on its seating with a clicking
noise.
Exhaust gas reycling (EGR) electrovalve. Check, not under load, between the electrovalve (2)and the EGR valve (1).
Connect the tool [1]between the electrovalve (2)and the capsule (1).
Compare readings with the values in the table below.
Engine speed (rpm) Vacuum value
7800,5
25000
B1HP12GD