oil pressure RENAULT TWINGO 2009 2.G Engine And Peripherals Repair Manual

13B-39
DIESEL INJECTION
High pressure pipe between rail and injector: Removal - Refitting
K9K
13B
PARTS AND CONSUMABLES FOR THE REPAIR
Pièces à remplacer systématiquement :
-the high pressure pipes between the rail and the in-
jectors.
Ingrédients :
-cleaning cloths,
-set of K9K blanking plugs (injection DELPHI).
REMOVAL
I - REMOVAL PREPARATION OPERATION
aDisconnect the battery (see ) (MR 411, 80A, Bat-
tery).
aRemove the front engine cover.aRemove:
-the dipstick,
-the dipstick guide nut (1) ,
-the oil level dipstick guide.
aBlock the dipstick guide inlet opening on the cylinder
block.
aDisconnect the connectors:
-the heater plugs,
-the injectors,
-the flow actuator,
-diesel fuel temperature sensor.
aProtect the alternator and the starter from fuel out-
flow. Special tooling required
Mot. 1746Offset wrench for tightening
High Pressure pump pipes.
Equipment required
Diagnostic tool
Tightening torquesm
high pressure pipe
unions between the
pump and the yellow rail24 Nm
high pressure pipe
unions between the
pump and the silver rail28 Nm
IMPORTANT
Consult the safety and cleanliness advice and oper-
ation recommendations before carrying out any
repair (see 13B, Diesel injection, Diesel injec-
tion: Precautions for the repair, page 13B-1) .
WARNING
Obtain the special high pressure injection circuit
blanking plugs kit.
Always replace any high pressure pipe or high pres-
sure pipe clip removed with a new one.
114527

13B-41
DIESEL INJECTION
High pressure pipe between rail and injector: Removal - Refitting
K9K
13B
II - OPERATION FOR REMOVAL OF PART
CONCERNED
aClean the high pressure pipe unions (6) between the
rail and the injectors (see 13B, Diesel injection,
Diesel injection: Precautions for the repair, page
13B-1) .
aRemove then dispose of:
-the clips between the high pressure pipes,
-the high pressure pipes (6) between the rail and the
injectors.REFITTING
I - REFITTING PREPARATIONS OPERATION
a
II - REFITTING OPERATION FOR PART
CONCERNED
a
aFit the new high pressure pipes between the rail and
the injectors.
aScrew on the high pressure pipe unions between the
rail and the injectors until contact is made, but do not
tighten them.
121418
WARNING
To avoid any corrosion or damage, protect the
areas on which fuel is likely to run.
Note:
Do not damage the injector return nozzle.
WARNING
To prevent impurities from entering the circuit,
plugs must be fitted to the openings of all the fuel
circuit components exposed to the open air.
WARNING
Do not remove the blanking plugs from each
component until the last moment.
Also, do not remove the components from their
packaging until they are to be fitted to the vehi-
cle.
20960
WARNING
Before fitting a new high pressure pipe, lightly
lubricate the nut threads with the oil from the
applicator provided in the new parts kit.
Be careful not to allow oil into the high pressure
pipe.
Do not lubricate high pressure pipes supplied
without an applicator, as these high pressure
pipes are self-lubr icating.

13B-42
DIESEL INJECTION
High pressure pipe between rail and injector: Removal - Refitting
K9K
13B
aFit and lock a new clip between the high pressure
pipes between the rail and the injectors.
aUsing the (Mot. 1746), tighten to torque:
-the high pressure pipe unions between the
pump and the yellow rail (24 Nm),
-the high pressure pipe unions between the
pump and the silver rail (28 Nm).
III - FINAL OPERATION.
aRefit:
-the channel,
-the neck nut.
aFit the neck wiring harness.
aClip the neck on.
aConnect to the high pressure pump:
-the diesel fuel supply pipe,
-the diesel return pipe to the diesel filter.
aRemove the protection on the alternator and starter.
aConnect the connectors:
-the heater plugs,
-the injectors,
-the flow actuator,
-diesel fuel temperature sensor.
aRemove the blanking cover protecting the dipstick
guide inlet orifice on the cylinder block.
aRefit:
-the dipstick guide,
-the dipstick guide nut,
-the oil level dipstick.
aRefit the neck nuts.
aPrime the fuel circuit with a manual priming pump
until the disconnected pipes are filled with fuel; if
necessary, bleed the fuel filter (see 13A, Fuel sup-
ply, Fuel filter: Removal - Refitting, page 13A-4) .
aCheck that there are no fuel leaks.
aConnect the battery (see ) (MR 411, 80A, Battery).
aCheck the high pressure circuit (see 13B, Diesel in-
jection, High pressure pipe: Check, page 13B-34)
.
aUse the Diagnostic tool to check for an absence of
stored faults; deal with these and clear them as nec-
essary.
aRefit the engine cover.

13B-44
DIESEL INJECTION
Injector rail: Removal - Refitting
K9K
13B
aDisconnect:
-the fuel flow actuator (3) ,
-the diesel temperature sensor (4) .
aAt (5) , unclip the electrical wiring from the neck.
aMove the electrical wiring to one side.aDisconnect the injector rail pressure sensor connec-
tor (6) .
aRemove:
-the dipstick (7) ,
-the oil level dipstick nut (8) ,
-the oil level dipstick guide (9) .
aPlug the oil level dipstick guide inlet opening on the
cylinder block.
aRemove:
-the bolt on the neck of the injection rail.
-the neck of the injection rail.
127907
127906127902

13B-47
DIESEL INJECTION
Injector rail: Removal - Refitting
K9K
13B
aRemove the blanking plugs.
aFit the injector rail.
aFit the injector rail nuts without tightening them.
III - FINAL OPERATION.
a
aRemove the blanking plugs from the high pressure
pump and the injection rail and discard them.
aFit the high pressure pipe between the high pressure
pump and the injection rail.
aTighten the high pressure pipe unions between the
pump and the rail until contact is made.
aRemove the blanking plugs on the injection rail and
the diesel fuel injectors then discard them.
aFit the new high-pressure pipes between the rail and
the injectors.
aTighten until contact the unions of the high pressure
pipes between the rail and injector.aFit and lock the new clips between the high pressure
pipes on the rail and injectors.
aTighten to torque:
-the injector rail nuts (28 Nm),
-the unions for the high pressure pipes between
the rail and the yellow-coloured injector (24
Nm) using the tool (Mot. 1746),
-the unions for the high pressure pipes between
the rail and the silver-coloured injector (28 Nm)
using the tool (Mot. 1746),
-the unions for the high pressure pipes between
the pump and the yellow-coloured rail (24 Nm)
using the tool (Mot. 1746),
-the unions for the high pressure pipes between
the pump and the silver-coloured rail (28 Nm)
using the tool (Mot. 1746),
aConnect to the high pressure pump:
-the fuel return pipe to the fuel filter,
-the fuel supply pipe.
aRefit the neck on the injection rail.
aRemove the protection fitted on the inlet opening of
the oil level dipstick on the cylinder block.
aRefit:
-the dipstick guide,
-the oil level dipstick nut,
-the oil level dipstick.
aConnect the injector rail pressure sensor connector.
aPosition the wiring harness in its channel.
aFasten the electrical wiring to the channel.
aConnect:
-the diesel temperature sensor,
-the fuel flow actuator,
-the injector connectors,
-the heater plug connectors.
aPrime the fuel circuit using a manual priming pump
until the disconnected pipes are filled with fuel.
aCheck that there are no fuel leaks.
aConnect the battery (see Battery: Removal - Refit-
ting) (80A, Battery).
aCheck the high pressure circuit (see 13B, Diesel in-
jection, High pressure pipe: Check, page 13B-34)
.
aRefit the engine cover.
20960
WARNING
Before fitting a new high-pressure pipe, lightly
lubricate the nut threads with the oil from the
applicator provided in the new parts kit.
Be careful not to allow oil into the high-pressure
pipe.
Do not lubricate high-pressure pipes supplied
without an applicator, as these high-pressure
pipes are self-lubricating.

14A-1
ANTIPOLLUTION
Oil vapour rebreathing circuit: Descriptions
K9K
14A
I - PRESENTATION OF THE CIRCUIT
Operating phase A
Operating phase BOperating phase A :
-with the engine at low load, the vacuum in the air pipe
at the air filter box outlet is not sufficient to activate the
membrane of the oil vapour rebreathing valve, fitted
with a weighted spring. Oil vapours are aspirated in
large quantities due to the vacuum in the air pipe at
the air filter box outlet.
Operating phase B :
-At engine medium and high load, the vacuum in the
pipe at the air filter box outlet attracts the membrane
of the oil vapour rebreathing valve. The hole allowing
the oil vapours to pass through in large quantities is
therefore closed and the oil vapours are aspirated in
low quantities via a calibrated jet.
II - CHECK
To ensure the antipollution system works properly, the
oil vapour rebreathing circuit must be kept clean and in
good condition.
20965
20965-1
(P) Atmospher ic pressure
(1) Rocker cover
(2) Oil vapour recirculation pipe
(3) Oil vapour recirculation valve
(4) Air filter box outlet air pipe
(5) Turbocharger

14A-18
ANTIPOLLUTION
Exhaust gas recirculation assembly: Removal - Refitting
K9K
14A
aRefit:
-new seals on the coolant circulation cover,
-the coolant circulation cover on the exhaust gas
cooler.
aTorque tighten the coolant circulation cover bolts
on the exhaust gas cooler (12 N.m).
aRemove the tool (Ms. 583) from the coolant inlet and
outlet hoses of the exhaust gas cooler.
III - FINAL OPERATION
aFit the intercooler air outlet pipe at the damper valve
end.
aConnect the intercooler air outlet pipe on the side of
the damper valve.
aTorque tighten the intercooler air outlet pipe clip
at the damper valve end (5.5 N.m).
aRefit the intercooler air outlet pipe nut on the lifting
eye.
aConnect the turbocharging pressure regulator vacu-
um pipe.
aClip:
-the turbocharging pressure regulator vacuum pipe,
-the vacuum pipe from the brake servo.
aConnect the brake servo vacuum pipe.
aFit the intercooler air inlet pipe at the turbocharger
end.
aRefit the intercooler air inlet pipe nut at the turbo-
charger end on the lifting eye.
aConnect the intercooler air inlet pipe at the turbo-
charger end.
aClip on the intercooler air inlet pipe clip at the turbo-
charger end.
aRefit the air outlet pipe onto the air filter unit.
aTighten the air filter unit air outlet pipe clip on the tur-
bocharger.
aConnect the oil vapour rebreathing pipe.
aRefit:
-the exhaust gas recirculation rigid pipe (see 14A,
Antipollution, Exhaust gas recirculation rigid
pipe: Removal - Refitting, page 14A-19) ,-the catalytic converter (see 19B, Exhaust, Cata-
lytic converter: Removal - Refitting, page 19B-
12) ,
-the lower engine tie-bar (see 19D, Engine mount-
ing, Lower engine tie-bar: Removal - Refitting,
page 19D-18) ,
-the EGR solenoid valve (see 14A, Antipollution,
Exhaust gas recirculation solenoid valve: Re-
moval - Refitting, page 14A-10) ,
-the air filter unit (see 12A, Fuel mixture, Air filter
unit: Removal - Refitting, page 12A-13) ,
-the scoop under the scuttle panel grille (see Scoop
under the scuttle panel grille: Removal - Refit-
ting) (56A, Exterior equipment).
-the scuttle panel grille (see Scuttle panel grille:
Removal - Refitting) (56A, Exterior equipment),
-the windscreen wiper arms (see Windscreen wip-
er arm: Removal - Refitting) (85A, Wiping -
Washing),
aConnect the battery (see ) (80A, Battery).
aFill and bleed the cooling system (see 19A, Cool-
ing, Cooling system: Draining - Refilling, page
19A-9) .
aRefit the engine cover. K9K, and 718

17B-1
PETROL INJECTION
Petrol injection: List and location of components
D4F, and 772
17B
121740
(1) Petrol vapour rebreathing sole-
noid valve
(2) Intake air pressure sensor
(3) Motorised throttle valve
(4) Injection computer
121739
(5) Intake air temperature sensor
(6) Pinking sensor
(7) Coolant temper ature sensor
(8) Engine speed and flywheel posi-
tion sensor
113044
(9) Ignition coil

17B-5
PETROL INJECTION
Petrol injection: List and location of components
D4F, and 780 or 782
17B
122387
(1) Fuel vapour recirculation sole-
noid valve
(2) Upstream oxygen sensor
(3) Petrol injection computer
(4) Motorised throttle valve
(5) Ignition coil
(6) Engine compar tment connec-
tion unit
(7) Intake distributor pressure sen-
sor
(8) Turbocharger
108254
(9) Fuel injection computer

17B-7
PETROL INJECTION
Petrol injection: List and location of components
D4F, and 780 or 782
17B
121774
(14) Downstream oxygen sensor
109725
(15) Coolant temper ature sensor
(16) Crankshaft position sensor
121725
(17) Oil pressure sensor
122825
(18) Turbocharging pressure limiter
solenoid valve