2009 RENAULT TWINGO fuel

13B-37
DIESEL INJECTION
High pressure pipe between pump and rail: Removal - Refitting
K9K
13B
II - OPERATION FOR REMOVAL OF PART
CONCERNED
aClean the high pressure pipe unions (6) between the
pump and the rail (see 13B, Diesel injection, Die-
sel injection: Precautions for the repair, page
13B-1) .
aRemove the high pressure pipe (6) between the
pump and the rail and discard it.
aFit suitable blanking plugs on:
-the high pressure pump,
-the injector rail.
REFITTING
I - REFITTING PREPARATIONS OPERATION
aII - REFITTING OPERATION FOR PART
CONCERNED
a
aFit a new high pressure pipe between the pump and
the rail.
aScrew on the high pressure pipe unions between the
pump and the rail without tightening them until con-
tact is made.
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.
121419
WARNING
To avoid any corrosion or damage, protect the
areas on which fuel is likely to run.
WARNING
Only remove the blanking plugs from the pro-
tected components at the last possible moment.
Also, do not remove the components from their
packaging until just before fitting them to the
vehicle.
20960
WARNING
Before fitting a new high pressure pipe, lightly
lubricate the nut threads with oil from the applica-
tor provided in the new par t.
Be careful not to allow oil into the high pressure
pipe.
Do not lubricate high pressure pipes supplied
without an applicator; these pipes are self-lubri-
cating.

13B-38
DIESEL INJECTION
High pressure pipe between pump and rail: Removal - Refitting
K9K
13B
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 dipstick,
-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-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-40
DIESEL INJECTION
High pressure pipe between rail and injector: Removal - Refitting
K9K
13B
aClean the diesel pipe unions on the high pressure
pump (see 13B, Diesel injection, Diesel injection:
Precautions for the repair, page 13B-1) .
aDisconnect from the high pressure pump:
-the diesel supply pipe (2) ,
-the diesel return pipe (3) to the diesel filter.aUnclip the neck at (4) .
aRemove the neck wiring harness.
aRemove:
-the neck nut (5) ,
-the neck.
121423
WARNING
To avoid any corrosion or damage, protect the
areas on which fuel is likely to run.
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.121419

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-43
DIESEL INJECTION
Injector rail: Removal - Refitting
K9K
13B
REMOVAL
I - REMOVAL PREPARATION OPERATION
aPosition the vehicle on a two-post lift (see Vehicle:
Towing and lifting) (02A, Lifting equipment)
aRemove the front engine cover.
aDisconnect the battery (see Battery: Removal - Re-
fitting) (80A, Battery).
aDisconnect:
-the heater plug connectors (1) ,
-the connectors (2) from the injectors. Special tooling required
Mot. 1746Offset wrench for tightening
High Pressure pump pipes.
Tightening torquesm
studs of the injection rail
on the cylinder head8 Nm
injector rail nuts28 Nm
unions for the high pres-
sure pipes between the
rail and the yellow-
coloured injector24 Nm
unions for the high pres-
sure pipes between the
rail and the silver-
coloured injector28 Nm
unions for the high pres-
sure pipes between the
pump and the yellow-
coloured r ail24 Nm
unions for the high pres-
sure pipes between the
pump and the silver-
coloured r ail28 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) .
IMPORTANT
Use the diagnostic tool before any operation is car-
ried out on the injection circuit to check:
-that the rail is not under pressure,
-that the fuel temperature is not too high.
Working on the circuit with the engine running is
strictly forbidden.
WARNING
To avoid any corrosion or damage, protect the
areas on which fuel is likely to run.
IMPORTANT
Wear leaktight gloves (nitrile type) for this opera-
tion.
WARNING
To prevent impurities from entering the circuit, place
protective plugs on all fuel circuit components
exposed to the open air.
127895

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.
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