engine RENAULT TWINGO RS 2009 2.G Engine And Peripherals Workshop Manual

13B-2
DIESEL INJECTION
Diesel injection: Precautions for the repair
K9K
13B
II - ADVICE TO BE FOLLOWED BEFORE ANY
OPERATION
1) Carry out the work in a clean working area and take
care to protect removed components from dust using
plastic bags which are hermetically-resealable, for ex-
ample.
2) Always order the following from the Parts Depart-
ment before carrying out work:
-a new set of blanking plugs, specific to the engine,
-enough lint-free cleaning cloths.
-one of the two cleaning products for fuel pipe
unions,
-the parts that are always to be replaced after each
removal operation, mentioned in the operational pro-
cedures specific to the vehicle (see related Workshop
Repair Manual).
3) Wear safety goggles fitted with side shields to pre-
vent the cleaning product from splashing the eyes.
4) Wear leaktight protective gloves (Nitrile type) to
avoid prolonged contact with the skin.
5) Before carrying out work on the injection system,
use plastic bags or clean rags, for example, to protect:
-the accessories and timing belts,
-the electrical accessories (starter, alternator, power-
assisted steering pump, sensors and electrical con-
nectors),
-the flywheel face.
III - INSTRUCTIONS TO BE FOLLOWED DURING
THE OPERATION
Wash your hands before and while carrying out the
work.
Replace leaktight protective gloves (Nitrile type) when
they are soiled or damaged.
All components removed from the injection system
must be stored in a hermetically sealed plastic bag
once they have been capped.
Reseal the bag hermetically, for example using adhe-
sive tape, even if the bag must be opened shortly after-
wards: ambient air can be a source of impurities.After opening the fuel circuit, the use of brushes, clean-
ing agents, air blow guns, rifle-type brushes or stan-
dard cloths is strictly prohibited: these items are likely
to allow impurities to enter the system.
When replacing a component with a new one or when
refitting it after storing it in a plastic bag, do not unpack
it until it is time to fit it on the vehicle.
IV - CLEANING
There are currently two procedures for cleaning the
fuel circuit before opening it in order to carry out work in
the workshop.
These procedures enable the fuel circuit to be cleaned
to prevent contamination from entering: they both have
the same end result and neither is preferred over the
other.
1 - Cleaning using injector cleaner
Clear the access to the unions that need opening, fol-
lowing the work procedures specific to the vehicle (see
the relevant Workshop Repair Manual).
Protect sections which are sensitive to fuel leaks.
Pour the injector cleaning agent into a container which
is free from impurities.
Dip a clean brush, which is not shedding bristles, into
the container of injector cleaning agent.
Clean the unions carefully using the brush and the in-
jector cleaning agent.
Blast the components that have been cleaned with
compressed air (tools, workbench, and also parts,
unions and around the injection system). Check that no
bristles from the brush have come away and that the
area is clean.
Wipe the sections that were cleaned with fresh clean-
ing cloths.
Open the circuit at the unions and immediately fit the
relevant blanking plugs. Note:
When using leather protective gloves, wear a pair of
leaktight protective gloves (Nitrile type) over the top.
IMPORTANT
Wear leaktight gloves (Nitrile type) for this opera-
tion.
IMPORTANT
Wear goggles with side protectors for this opera-
tion.

13B-9
DIESEL INJECTION
Diesel injection: List and location of components
K9K, and 740
13B
121436
(11) Pre-postheating unit
120039
(12) Turbocharging pressure sensor
(13) Exhaust gas recirculation sole-
noid valve
(14) Coolant temper ature sensor
(15) Turbocharger upstream inlet air
temperature sensor
(16) Turbocharger downstream inlet
air temperature sensor
120326
(17) Cylinder position sensor
120327
(18) Engine speed and position sen-
sor

13B-13
DIESEL INJECTION
Diesel injection computer: Removal - Refitting
K9K
13B
To configure the diesel injection computer (see MR
413 Fault finding, 13B, Diesel injection, Fault find-
ing - Replacement of components).
REMOVAL
I - REMOVAL PREPARATION OPERATION
aRemove the front engine cover.
aDisconnect the battery ( (see Battery: Removal -
Refitting) ).
II - OPERATION FOR REMOVAL OF PART
CONCERNED
aDisconnect the injection computer connectors (1) .
aRemove the nuts (2) from the computer on the bat-
tery tray.
REFITTING
I - REFITTING OPERATION FOR PART
CONCERNED
aPosition the new injection computer making sure the
positioning lug is engaged, then fit the computer
onto the studs.
aRefit the computer nuts on the battery tray.aTorque tighten the computer nuts (4 Nm).
aConnect the injection computer.
II - FINAL OPERATION.
aConnect the battery ( (see Battery: Removal - Re-
fitting) ).
aRefit the engine cover. Tightening torquesm
computer nuts4 Nm
120322

13B-14
DIESEL INJECTION
Camshaft position sensor: Removal - Refitting
C44, and K9K
13B
PARTS AND CONSUMABLES FOR THE
REPAIR WORK
aParts always to be replaced:
-axle subframe bolt.
REMOVAL
I - REMOVAL PREPARATION OPERATION
aPosition the vehicle on a two-post lift ( (see Vehicle:
Towing and lifting) ).
aRemove the right-hand suspended engine mounting
(see 19D, Engine mounting, Right-hand sus-
pended engine mounting: Removal - Refitting,
page 19D-13) .
aLift the engine with the support of the (Mot. 1672) so
as to be able to easily access the camshaft position
sensor bolt.II - OPERATION FOR REMOVAL OF PART
CONCERNED
aDisconnect the connector (1) from the camshaft po-
sition sensor.
aRemove:
-the bolt (2) from the camshaft position sensor,
-the camshaft position sensor.
REFITTING
I - REFITTING OPERATION FOR PART
CONCERNED
aRefit:
-the camshaft position sensor,
-the camshaft position sensor bolt.
aTorque tighten the camshaft position sensor bolt
(8 Nm).
aConnect the camshaft position sensor connector.
II - FINAL OPERATION.
aLower the engine with the support of the (Mot. 1672)
to position the engine, approximately in its normal
position.
aRefit the right-hand suspended engine mounting
(see 19D, Engine mounting, Right-hand sus-
pended engine mounting: Removal - Refitting,
page 19D-13) , Special tooling required
Mot. 1672Low er engine support.
Tightening torquesm
camshaft position sen-
sor bolt8 Nm
120326

13B-16
DIESEL INJECTION
High pressure pump: 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 ) (80A, Battery).
aRemove:
-the windscreen wiper arms (see Windscreen wip-
er arm: Removal - Refitting) (85A, Wiping -
Washing),
-the scuttle panel grille (see Scuttle panel grille:
Removal - Refitting) (56A, Exterior equipment),-the scoop under the scuttle panel grille (see Scoop
under the scuttle panel grille: Removal - Refit-
ting) (56A, Exterior equipment).
aRemove:
-the dipstick,
-the oil level dipstick nut (1) ,
-the oil level dipstick guide.
aPlug the oil level dipstick guide inlet opening on the
cylinder block.
aDisconnect the following connectors :
-the heater plugs,
-of the injectors,
-the flow actuator,
-the diesel temperature sensor.
aProtect the alternator from fuel outflow. Special tooling required
Mot. 1672Low er engine support.
Mot. 1430Set of 5 crankshaft and cam-
shaft pulley timing pins.
Mot. 1606High pressure pump pulley
support tool.
Mot. 1525Gear extractor for tapered
hub injection pump.
Mot. 1525-02Adapter claws for Mot. 1525.
Equipment required
Diagnostic tool
Tightening torquesm
high pressure pump
bolts on the cylinder
head23 N.m
high pressure pump pul-
ley nut70 N.m
cylinder head sus-
pended mounting bolts25 N.m
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) .
114527

13B-17
DIESEL INJECTION
High pressure pump: Removal - Refitting
K9K
13B
a
Clean the union on the diesel fuel supply pipe high
pressure pump (see 13B, Diesel injection, Diesel
injection: Precautions for the repair, page 13B-1)
.
aUnclip:
-the fuel supply and return pipes at (2) ,
-the priming pump (3) .
aDisconnect the high pressure pump from:
-the diesel supply pipe (4) ,
-the diesel return pipe (5) to the diesel filter.
aInsert the blanking plugs.
aRemove the fuel supply pipes from the pump.
aRemove:
-the fuel filter (see 13A, Fuel supply, Fuel filter:
Removal - Refitting, page 13A-4) ,
-the fuel filter mounting bolts,
-the fuel filter holder,aUnclip the engine wiring channel at (6) .
aMove the engine wiring away from the engine wiring
channel.
aRemove:
-the nut (7) from the channel,
-the channel,
-the engine tie-bar (see 19D, Engine mounting,
Lower engine tie-bar: Removal - Refitting, page
19D-18) .
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-18
DIESEL INJECTION
High pressure pump: Removal - Refitting
K9K
13B
a
Disconnect the diesel return pipe (8) on the venturi.
aInsert the blanking plugs.
aRemove the high pressure pipe between the pump
and the rail (see 13B, Diesel injection, High pres-
sure pipe between pump and rail: Removal - Re-
fitting, page 13B-35)
aRemove the right-hand suspended engine mounting
(see 19D, Engine mounting, Right-hand sus-
pended engine mounting: Removal - Refitting,
page 19D-13) .
aLift the engine a few centimetres using the (Mot.
1672).
aRemove the camshaft position sensor (see 13B,
Diesel injection, Camshaft position sensor: Re-
moval - Refitting, page 13B-14) .aUnclip the upper timing cover at (9) .
aRemove:
-the plastic bolt (10) ,
-the upper timing cover.
121420
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.
Note:
Do not disconnect the right-hand driveshaft when
raising the engine.
K9K, and 718
141221
136654

13B-19
DIESEL INJECTION
High pressure pump: Removal - Refitting
K9K
13B
aRemove the accessories belt (see 11A, Top and
front of engine, Accessories belt: Removal - Re-
fitting, page 11A-3)
aUnclip the upper timing cover at (11) .
aRemove the upper timing cover.
aUnclip the lower timing cover at (12) .
aRemove:
-the plastic bolt (13) on the lower timing cover,-the lower timing cover.
K9K, and 740
19654
19654-1

13B-21
DIESEL INJECTION
High pressure pump: Removal - Refitting
K9K
13B
aPosition the engine at Top Dead Centre. The cam-
shaft pulley hole (15) should be opposite the cylinder
head hole (16) .
aInsert the (Mot. 1430) (17) in the camshaft pulley
hole and in the cylinder head hole to check that the
engine is correctly positioned at top dead centre.aRemove the (Mot. 1430) once the engine is in posi-
tion.
aFit the (Mot. 1606) (18) on the cylinder head.
aImmobilise the high pressure pump pulley using a
clé de 32 mm then remove the nut (19) from the pul-
ley.
107270
Note:
Never run the engine in the opposite direction to
that of normal operation.
19655
23168
Note:
If necessary, turn the engine slowly to adjust the
position of the (Mot. 1606) on the high pressure
pump pulley teeth.

13B-24
DIESEL INJECTION
High pressure pump: Removal - Refitting
K9K
13B
aRefit the lower timing cover.
aRefit the accessories belt (see 11A, Top and front
of engine, Accessories belt: Removal - Refitting,
page 11A-3)
aRefit:
-the upper timing cover,
-the camshaft position sensor (see 13B, Diesel in-
jection, Camshaft position sensor: Removal -
Refitting, page 13B-14) ,
-the right-hand suspended engine mounting (see
19D, Engine mounting, Right-hand suspended
engine mounting: Removal - Refitting, page
19D-13) .
aRemove the blanking plugs.
aRefit a high pressure pipe between the pump and
the rail (see 13B, Diesel injection, High pressure
pipe between pump and rail: Removal - Refitting,
page 13B-35) .
aConnect the diesel return pipe to the venturi fitted to
the high pressure pump.aRefit:
-the fuel filter mounting,
-the fuel filter (see 13A, Fuel supply, Fuel filter:
Removal - Refitting, page 13A-4) .
aRefit:
-the engine tie-bar (see 19D, Engine mounting,
Lower engine tie-bar: Removal - Refitting, page
19D-18) ,
-the engine harness channel.
aFit the engine wiring on the engine wiring channel.
aClip on the engine wiring channel.
aConnect to the high pressure pump:
-the diesel supply pipe,
-the diesel return pipe to the diesel filter.
aClip on the high pressure pump pipes.
aRemove the protection on the alternator to prevent
fuel flowing out.
aConnect the connectors of:
-the diesel temperature sensor,
-the flow actuator,
-the injectors,
-the heater plugs.
aRemove the blanking cover which protects the oil
level dipstick guide inlet opening on the cylinder
block.
aRefit:
-the dipstick guide,
-the dipstick,
-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).
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 ) (80A, Battery). K9K, and 740
19659
Note:
Make sure that the tab (23) is positioned oppo-
site the mark (24) .