2009 RENAULT TWINGO Engine And Peripherals Workshop Manual

12A-24
FUEL MIXTURE
Throttle valve: Removal - Refitting
K4M
12A
REMOVAL
I - REMOVAL PREPARATION OPERATION
aUndo:
-the clip (1) of the air filter unit air outlet pipe on the
throttle valve side,
-the clip (2) of the air filter unit air outlet pipe on the
air filter unit side.
aDisconnect:
-the oil vapour rebreathing pipe (3) from the air filter
unit air outlet pipe,
-the air outlet pipe of the air filter unit.
aRemove the air outlet pipe from the air filter box.II - REMOVAL OPERATION
aDisconnect the connector (4) from the throttle valve.
aRemove:
-the throttle valve bolts (5) ,
-the throttle valve,
-the throttle valve seal.
REFITTING
I - REFITTING PREPARATION OPERATION
aparts always to be replaced: Throttle valve seal.
aUse SURFACE CLEANER (see Vehicle: Parts
and consumables for the repair) (04B, Consuma-
bles - Products) to clean and degrease:
-the throttle valve joint face if it is to be re-used,
-the inlet distributor seal housing. Tightening torquesm
throttle valve bolts10 N.m
clip of the air filter unit
air outlet pipe on the
throttle valve3.5 N.m
clip of the air filter unit
air outlet pipe on the air
filter unit3.5 N.m
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132383
WARNING
The joint faces must be clean, dr y and free from
grease (avoid finger marks).
WARNING
Do not scrape the joint faces of the aluminium,
any damage caused to the joint face will result in
a risk of leaks.

12A-25
FUEL MIXTURE
Throttle valve: Removal - Refitting
K4M
12A
II - REFITTING OPERATION
aRefit:
-a new seal on the inlet distributor,
-the throttle valve.
aIn order, torque tighten the throttle valve bolts (10
N.m).
aConnect the throttle valve connector.
III - FINAL OPERATION
aRefit the air outlet pipe onto the air filter unit.
aConnect:
-the air outlet pipe of the air filter unit,
-the oil vapour rebreathing pipe on the air filter unit
air outlet pipe.
aTorque tighten:
-the clip of the air filter unit air outlet pipe on the
throttle valve (3.5 N.m),
-the clip of the air filter unit air outlet pipe on the
air filter unit (3.5 N.m).
132383

12A-26
FUEL MIXTURE
Throttle valve: Cleaning
D4F or D7F or K4M
12A
CLEANING
I - CLEANING PREPARATION OPERATION
aRemove the throttle valve (see 12A, Fuel mixture,
Throttle valve: Removal - Refitting, page 12A-20)
.
II - CLEANING THE PART CONCERNED
a
aRemove the seal(s) of the throttle valve.aHold the throttle valve flap open manually.
aSpray CARBURETTOR CLEANER (see Vehicle:
Parts and consumables for the repair) (04B, Con-
sumables - Products) into the air vent until all traces
of clogging have disappeared. Equipment required
compressed air nozzle
IMPORTANT
Wear leaktight gloves (Nitrile type) for this opera-
tion.
IMPORTANT
Always wear protective gear (gloves, goggles and
breathing masks).
Note:
Be sure to work in a clean environment so as not to
allow any contamination of the throttle valve.
Note:
The CARBURETTOR CLEANING product dam-
ages the seals.
124736
Note:
Do not spray any cleaning product onto the out-
side of the cylinder, inside the spring housing or
onto the connector.

12A-27
FUEL MIXTURE
Throttle valve: Cleaning
D4F or D7F or K4M
12A
aRemove the residues of CARBURETTOR CLEAN-
ER and the residual dirt using a LINT-FREE CLOTH
(see Vehicle: Parts and consumables for the re-
pair) (04B, Consumables - Products).
aUse a compressed air nozzle to blast the throttle
valve edges and the air vent.
parts always to be replaced: Throttle valve seal.III - FINAL OPERATION
aRefit the throttle valve (see 12A, Fuel mixture,
Throttle valve: Removal - Refitting, page 12A-20)
.
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124738
Note:
If the throttle valve is dropped or receives any
other impact, it will need to be replaced.

12A-28
FUEL MIXTURE
Air flowmeter: Removal - Refitting
C44, and K9K
12A
PARTS AND CONSUMABLES FOR THE
REPAIR WORK
aParts always to be replaced:
-the air flowmeter seal on the air filter box.
REMOVAL
I - OPERATION FOR PREPARATION OF PART
CONCERNED
aRemove the air filter box (see 12A, Fuel mixture,
Air filter unit: Removal - Refitting, page 12A-13) .
II - OPERATION FOR REMOVAL OF PART
CONCERNED
aon the workbench, remove the two bolts (1) from the
air flowmeter on the air filter box.
aRemove the air flowmeter seal on the air filter box
and discard it.
REFITTING
I - REFITTING OPERATION FOR PART
CONCERNED
aRefit:
-a new air flowmeter seal on the air filter box,
-the air flowmeter on the air filter box,
-the air flowmeter bolts.II - FINAL OPERATION.
aRefit the air filter box (see 12A, Fuel mixture, Air fil-
ter unit: Removal - Refitting, page 12A-13) .
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12A-29
FUEL MIXTURE
Inlet distributor: Removal - Refitting
D7F
12A
PARTS AND CONSUMABLES FOR THE
REPAIR WORK
aParts always to be replaced
-inlet distributor seals.
aConsumables (see Vehicle: Parts and consuma-
bles for the repair)
-FLUOSTAR 2L grease.
REMOVAL
I - REMOVAL PREPARATION OPERATION
aRemove:
-the air inlet scoop on the front end panel,
-the air filter unit air inlet pipe,
-the air filter unit air outlet pipe.
aDisconnect the motorised throttle valve connector.aRemove:
-the intermediate bracket bolts on the throttle valve,
-the intermediate plate,
-the motorised throttle valve bolts (1) ,
-the motorised throttle valve. Tightening torquesm
injector rail bolts7 N.m
motorised throttle valve
bolts10 N.m
inlet distributor nuts on
the cylinder head (initial
torque)8 N.m
inlet distributor bolts on
the rocker cover (initial
torque)3 N.m
inlet distributor nuts on
the cylinder head17 N.m
inlet distributor bolts on
the rocker cover10 N.m
motorised throttle valve
bolts10 N.m
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12A-30
FUEL MIXTURE
Inlet distributor: Removal - Refitting
D7F
12A
aDisconnect the spark plug high voltage wiring har-
ness (2) .
aMove aside the spark plug high voltage wiring har-
ness.
aDisconnect:
-the petrol vapour rebreather pipe from the inlet dis-
tributor (3) ,
-the non-return valve pipe on the inlet distributor (4)
,
-the air inlet pressure sensor connector (5) ,
-the air temperature sensor connector (6) ,
-the injector connector (7) ,-the fuel supply pipe intermediate union (8) ,
-the oil vapour rebreathing pipe from the inlet dis-
tributor.
aRemove the dipstick.
aRemove:
-the accessories belt (see 11A, Top and front of
engine, Accessories belt: Removal - Refitting,
page 11A-3) ,
-the alternator upper bolt.
aTilt the alternator forward.
II - OPERATION FOR REMOVAL OF PART
CONCERNED
aRemove the nuts from the air inlet distributor on the
cylinder head.
121737
IMPORTANT
During this operation, be sure to:
-refrain from smoking or bringing red hot objects
close to the working area,
-be careful of fuel splashes when disconnecting
the union.
WARNING
To avoid any corrosion or damage, protect the
areas on which fuel is likely to run.
IMPORTANT
Wear latex gloves during the operation.
AIR CONDITIONING
121734

12A-31
FUEL MIXTURE
Inlet distributor: Removal - Refitting
D7F
12A
aRemove:
-the air inlet distributor bolts on the rocker cover (9) ,
-the inlet distributor.
When replacing the inlet distributor
aRemove:
-the fuel supply pipe from the injector rail,
-the injector rail bolts,
-the injector rail.
REFITTING
I - REFITTING PREPARATION OPERATION
aAlways replace the inlet distributor seals.
When replacing the inlet distributor
aRefit:
-the injector rail fuel supply pipe on the inlet distrib-
utor,
-the injector rail,
-the injector rail bolts.
aTorque tighten the injector rail bolts (7 N.m).
aRefit:
-the motorised throttle valve with a new seal,
-the motorised throttle valve bolts.
aTorque tighten the motorised throttle valve bolts
(10 N.m).II - REFITTING OPERATION FOR PART
CONCERNED
aFit the inlet distributor with new seals
aFit without tightening:
-the inlet distributor nuts on the cylinder head,
-the inlet distributor bolts on the rocker cover.
aPre-tighten to torque:
-the inlet distributor nuts on the cylinder head
(initial torque) (8 N.m),
-the inlet distributor bolts on the rocker cover
(initial torque) (3 N.m).
aTorque tighten:
-the inlet distributor nuts on the cylinder head
(17 N.m),
-the inlet distributor bolts on the rocker cover
(10 N.m).
III - FINAL OPERATION
aConnect:
-the oil vapour induction pipe from inlet distributor ,
-the fuel supply pipe intermediate union,
-the injector connectors,
-the air temperature sensor connector,
-the air inlet pressure sensor connector,
-the non-return valve pipe on the inlet distributor,
-the petrol vapour rebreather pipe.
121735