fuel RENAULT TWINGO 2009 2.G Engine And Peripherals Workshop Manual

12A-51
FUEL MIXTURE
Exhaust manifold: Removal - Refitting
K9K
12A
aRemove:
-the nuts (5) from the exhaust manifold,
-the exhaust manifold,
-the exhaust manifold gasket.
REFITTING
I - REFITTING PREPARATION OPERATION
aparts always to be replaced: exhaust manifold
seal.
aAlways replace:
-the air inlet metal tube seals.
aIf the exhaust manifold is being reused, clean it us-
ing a cleaning trough or a parts washer then dry it
using a compressed air nozzle.
aClean the bearing faces using ABRASIVE PADS
on:
-of the cylinder head - exhaust manifold,
-of the exhaust manifold - EGR rigid pipe,
-of the exhaust manifold - turbocharger,
aUse SURFACE CLEANER (see Vehicle: Parts
and consumables for the repair) (04B, Consuma-
bles - Products) and CLEAN CLOTHS to degrease
the bearing faces:
-of the cylinder head - exhaust manifold,
-of the exhaust manifold - EGR rigid pipe,
-of the exhaust manifold - turbocharger,aIf replacing, torque tighten the exhaust manifold
studs on the cylinder head (9 N.m).
II - REFITTING OPERATION FOR PART
CONCERNED
aRefit:
-a new exhaust manifold seal,
-the exhaust manifold.
aTorque tighten in order the exhaust manifold nuts
(26 N.m).
aFit the exhaust gas recirculation unit bolts.
aTorque tighten the exhaust gas recirculation unit
bolts (25 N.m).
aRefit the rigid exhaust gas recirculation pipe (see
14A, Antipollution, Exhaust gas recirculation rig-
id pipe: Removal - Refitting, page 14A-19) .
III - FINAL OPERATION
aRefit:
-a new seal on the air inlet metal tube,
-the air inlet metal tube,
-the lifting eye on the timing end,
-the bolts from the lifting eye, timing end,
-the turbocharger (see 12B, Turbocharging, Tur-
bocharger: Removal - Refitting, page 12B-4) ,
-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) ,
113561
WARNING
The joint faces must be clean, dr y and free from
grease (avoid finger marks).
113561

12A-52
FUEL MIXTURE
Exhaust manifold: Removal - Refitting
K9K
12A
-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),
-the engine cover.
aConnect the battery (see ) (80A, Battery).

12A-53
FUEL MIXTURE
Exhaust manifold: Removal - Refitting
D4F, and 780 or 782
12A
REMOVAL
I - REMOVAL PREPARATION OPERATION
aPosition the vehicle on a two-post lift (see Vehicle:
Towing and lifting) (02A, Lifting equipment).
aDisconnect the battery (see ) (80A, Battery).
aRemove:
-the engine undertray,
-the air filter unit (see 12A, Fuel mixture, Air filter
unit: Removal - Refitting, page 12A-13) ,
-the upstream oxygen sensor (see 17B, Petrol in-
jection, Oxygen sensors: Removal - Refitting,
page 17B-13) ,
-the lower engine tie-bar (see 19D, Engine mount-
ing, Lower engine tie-bar: Removal - Refitting,
page 19D-18) ,
-the catalytic converter (see 19B, Exhaust, Cata-
lytic converter: Removal - Refitting, page 19B-
12) ,
-the turbocharger (see 12B, Turbocharging, Tur-
bocharger: Removal - Refitting, page 12B-4) .II - OPERATION FOR REMOVAL OF PART
CONCERNED
aRemove the exhaust manifold nuts (6) .
aRemove:
-the exhaust manifold by undoing the central stud
with a male torx socket and removing the manifold
with a large screwdriver as shown at (7) ,
-the exhaust manifold heat shield bolts,
-the exhaust manifold heat shield,
-the exhaust manifold gasket. Tightening torquesm
exhaust manifold heat
shield bolts18 N.m
exhaust manifold nuts
(initial torque)20 N.m
exhaust manifold nuts30 N.m
IMPORTANT
Wear cut-resistant gloves during the operation.
121200
121771

12A-54
FUEL MIXTURE
Exhaust manifold: Removal - Refitting
D4F, and 780 or 782
12A
REFITTING
I - REFITTING PREPARATION OPERATION
aparts always to be replaced: exhaust manifold
seal.
II - REFITTING OPERATION FOR PART
CONCERNED
aRefit:
-the exhaust manifold heat shield,
-the exhaust manifold heat shield bolts.
aTorque tighten the exhaust manifold heat shield
bolts (18 N.m).
aRefit:
-a new exhaust manifold gasket,
-the exhaust manifold.
aRefit the exhaust manifold nuts.
aPretighten to torque the exhaust manifold nuts
(initial torque) (20 N.m).
aTorque tighten the exhaust manifold nuts (30
N.m).
III - FINAL OPERATION
aRefit:
-the turbocharger (see 12B, Turbocharging, Tur-
bocharger: Removal - Refitting, page 12B-4) ,
-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 upstream oxygen sensor (see 17B, Petrol in-
jection, Oxygen sensors: Removal - Refitting,
page 17B-13) ,
-the air filter unit (see 12A, Fuel mixture, Air filter
unit: Removal - Refitting, page 12A-13) ,
-the engine undertray.
aConnect the battery (see ) (80A, Battery).

12A-55
FUEL MIXTURE
Exhaust manifold: Removal - Refitting
K4M
12A
REMOVAL
I - REMOVAL PREPARATION OPERATION
aPosition the vehicle on a two-post lift (see Vehicle:
Towing and lifting) (02A, Lifting equipment).
aDisconnect the battery (see Battery: Removal - Re-
fitting) (80A, Battery).
aRemove:
-the engine undertray,
-the front right-hand wheel (see Wheel: Removal -
Refitting) (35A, Wheels and tyres),
-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).
aDrain the gearbox (see Manual gearbox oils:
Draining - Filling) (21A, Manual gearbox).aRemove:
-the front right-hand wheel driveshaft (see Front
right-hand driveshaft: Removal - Refitting)
(29A, Driveshafts),
-the lower engine tie-bar (see 19D, Engine mount-
ing, Lower engine tie-bar: Removal - Refitting,
page 19D-18) ,
-the upstream expansion chamber (see 19B, Ex-
haust, Expansion chamber: Removal - Refit-
ting, page 19B-23) .
aRemove:
-the bolts (1) from the driveshaft relay bearing,
-the driveshaft relay bearing. Tightening torquesm
exhaust manifold studs9 N.m
heat shield bolts12 N.m
upstream and down-
stream oxygen sensors44 N.m
strut mounting bolt on
the cylinder block75 N.m
upstream strut bolt (ini-
tial torque)14 N.m
exhaust manifold nuts26 N.m
upstream and down-
streamstrut bolts44
N.m
upstream strut bolts44 N.m
driveshaft relay bearing
bolts21 N.m
IMPORTANT
Wear cut-resistant gloves during the operation.
131770

12A-56
FUEL MIXTURE
Exhaust manifold: Removal - Refitting
K4M
12A
aRemove:
-the bulkhead heat shield bolts (2) ,
-the bulkhead heat shields.
aDisconnect the oxygen sensor connectors (3) .
aUnclip the oxygen sensor wiring at (4) .
132436132373
132378

12A-57
FUEL MIXTURE
Exhaust manifold: Removal - Refitting
K4M
12A
II - REMOVAL OPERATION
aRemove the exhaust manifold nuts.
aRemove:
-the bolts (5) from the « exhaust manifold - catalytic
converter » assembly,
-the « exhaust manifold - catalytic converter » as-
sembly,
-the seal from the « exhaust manifold - catalytic
converter » assembly.
132379
132392
132360

12A-58
FUEL MIXTURE
Exhaust manifold: Removal - Refitting
K4M
12A
If replacing the « exhaust manifold - catalytic
converter » assembly
aRemove:
-the upstream and downstream oxygen sensors (6)
,
-the heat shield (7) .
REFITTING
I - REMOVAL PREPARATION OPERATION
aUse SURFACE CLEANER (see Vehicle: Parts
and consumables for the repair) (04B, Consuma-
bles - Products) to clean and degrease:
-the exhaust manifold joint face if it is to be re-used,
-the cylinder head joint face.
aparts always to be replaced: exhaust manifold
seal.
aTorque tighten the exhaust manifold studs (9
N.m).If replacing the « exhaust manifold - catalytic
converter » assembly
aClean the threading of the upstream and down-
stream oxygen sensors using a wire brush.
aUse SURFACE CLEANER (see Vehicle: Parts
and consumables for the repair) (04B, Consuma-
bles - Products) to clean and degrease:
-the thread holes of the upstream and downstream
oxygen sensors on the exhaust manifold,
-the threading of the upstream and downstream ox-
ygen sensors.
aRefit the heat shield.
aTighten:
-to torque and in order the heat shield bolts (12
N.m),
-to torque the upstream and downstream oxygen
sensors ( 44 N.m).
aIf the strut mounting bolt on the cylinder block be-
comes loose, torque tighten the strut mounting
bolt on the cylinder block ( 75 N.m).
II - REFITTING OPERATION
aRefit:
-a new seal on the « exhaust manifold - catalytic
converter » assembly,
-the « exhaust manifold - catalytic converter » as-
sembly.
132441
Note:
If a stud loosens during removal, coat it with
HIGH RESISTANCE THREADLOCK (see Vehi-
cle: Parts and consumables for the repair)
(04B, Consumables - Products).
132441

12A-59
FUEL MIXTURE
Exhaust manifold: Removal - Refitting
K4M
12A
aPretighten the upstream strut bolt (initial torque)
(14 N.m) (8) .
aTorque tighten in order the exhaust manifold nuts
(26 N.m).aTorque tighten the upstream and downstream
(strut bolts44 N.m) (9) .
aTorque tighten the upstream strut bolts (44 N.m)
(10) .
III - FINAL OPERATION
aClip on the oxygen sensor wiring.
aConnect the oxygen sensor connectors.
aRefit:
-the bulkhead heat shields,
132360
132379132392
132360

12A-60
FUEL MIXTURE
Exhaust manifold: Removal - Refitting
K4M
12A
-the driveshaft relay bearing.
aTorque tighten the driveshaft relay bearing bolts
(21 N.m).
aRefit:
-the upstream expansion chamber (see 19B, Ex-
haust, Expansion chamber: Removal - Refit-
ting, page 19B-23) ,
-the lower engine tie-bar (see 19D, Engine mount-
ing, Lower engine tie-bar: Removal - Refitting,
page 19D-18) ,
-the front right-hand wheel driveshaft (see Front
right-hand driveshaft: Removal - Refitting)
(29A, Driveshafts).
aFill the gearbox (see Manual gearbox oils: Drain-
ing - Filling) (21A, Manual gearbox).
aRefit:
-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),
-the front right-hand wheel (see Wheel: Removal -
Refitting) (35A, Wheels and tyres),
-the engine undertray.
aConnect the battery (see Battery: Removal - Refit-
ting) (80A, Battery).