low oil pressure RENAULT TWINGO RS 2009 2.G Engine And Peripherals Workshop Manual

TWINGO - Chapitre 1
Contents
Pages
TWINGO - Chapitre 1ContentsPages
10AENGINE AND CYLINDER BLOCK
ASSEMBLY
Crankshaft seal on timing
end: Removal - Refitting 10A-1
Crankshaft seal, gearbox
end: Removal - Refitting 10A-3
Lower cover: Removal -
Refitting 10A-6
Engine oil: Draining -
Refilling 10A-22
Oil filter: Removal - Refitting 10A-29
Oil-coolant heat exchanger:
Removal - Refitting 10A-33
Conrod bearing shell:
Removal - Refitting 10A-37
Oil pressure sensor:
Removal - Refitting 10A-45
Oil pump: Removal -
Refitting 10A-50
Oil pressure: Check 10A-59
Multifunction suppor t:
Removal - Refitting 10A-63
Engine - gearbox assembly:
Removal - Refitting 10A-74
Valves: Adjustment 10A-105
Flywheel: Removal - Refitting 10A-10711A TOP AND FRONT OF ENGINE
Pressure at end of
compression: Check 11A-1
Accessories belt: Removal -
Refitting 11A-3
Crankshaft accessories
pulley: Removal - Refitting 11A-20
Timing belt: Removal -
Refitting 11A-27
Rocker cover: Removal -
Refitting 11A-66
Camshaft: Removal -
Refitting 11A-82
Cylinder head: Removal -
Refitting 11A-114
Camshaft dephaser :
Removal - Refitting 11A-135
Camshaft seal, timing end:
Removal - Refitting 11A-138
Oil decanter: Removal -
Refitting 11A-147
12A FUEL MIXTURE
Air inlet: Description 12A-1
Air filter: Removal - Refitting 12A-6
Air filter unit: Removal -
Refitting 12A-13

Contents
Air resonator : Removal -
Refitting 12A-19
Throttle valve: Removal -
Refitting 12A-20
Throttle valve: Cleaning 12A-26
Air flowmeter: Removal -
Refitting 12A-28
Inlet distributor: Removal -
Refitting 12A-29
Injector holder shim:
Removal - Refitting 12A-45
Exhaust manifold: Removal -
Refitting 12A-48
12B TURBOCHARGING
Turbocharging: Precautions
for the repair 12B-1
Turbocharger: Removal -
Refitting 12B-4
Turbocharger oil pipe:
Removal - Refitting 12B-12
Intercooler : Removal -
Refitting 12B-18
13A FUEL SUPPLY
Diesel supply circuit:
Operating diagram 13A-1
Manual pr iming pump:
Removal - Refitting 13A-2
Fuel filter : Removal -
Refitting 13A-4
Electric diesel fuel heater:
Removal - Refitting 13A-7
Fuel circuit: Operating
diagram 13A-8 12A FUEL MIXTUREFuel pressure: Check 13A-9
Fuel flow: Check 13A-14
13B DIESEL INJECTION
Diesel injection: Precautions
for the repair 13B-1
Diesel injection: List and
location of components 13B-8
Diesel injection computer:
Removal - Refitting 13B-13
Camshaft position sensor:
Removal - Refitting 13B-14
Crankshaft position sensor:
Removal - Refitting 13B-15
High pressure pump:
Removal - Refitting 13B-16
Flow actuator: Removal -
Refitting 13B-26
Venturi: Removal - Refitting 13B-31
High pressure pipe: Check 13B-34
High pressure pipe between
pump and rail: Removal -
Refitting 13B-35
High pressure pipe between
rail and injector: Removal -
Refitting 13B-39
Injector rail: Removal -
Refitting 13B-43
Rail pressure sensor:
Removal - Refitting 13B-48
Fuel temperature sensor:
Removal - Refitting 13B-49
Injector leak flow: Check 13B-51
Accelerometer : Removal -
Refitting 13B-53 13A FUEL SUPPLY

10A-3
ENGINE AND CYLINDER BLOCK ASSEMBLY
Crankshaft seal, gearbox end: Removal - Refitting
K4M
10A
REMOVAL
I - REMOVAL PREPARATION OPERATION
aPosition the vehicle on a two-post lift (see Vehicle:
Towing and lifting) (02A, Lifting equipment).
aRemove:
-the engine undertray,
-the battery (see Battery: Removal - Refitting)
(80A, Battery),
-the air filter unit (see 12A, Fuel mixture, Air filter
unit: Removal - Refitting, page 12A-13) ,
-the petrol injection computer (see 17B, Petrol in-
jection, Petrol injection computer: Removal -
Refitting, page 17B-20) ,
-the battery tray (see Battery tray: Removal - Re-
fitting) (80A, Battery),
-the front wheels (see Wheel: Removal - Refitting)
(35A, Wheels and tyres),
-the front wheel arch liners (see Front wheel arch
liner: Removal - Refitting) (55A, Exterior protec-
tion),
-the front bumper (see Front bumper: Removal -
Refitting) (55A, Exterior protection).
aDrain:
-the gearbox (see Manual gearbox oils: Draining -
Filling) (21A, Manual gearbox),
-the engine cooling system (see 19A, Cooling,
Cooling system: Draining - Refilling, page 19A-
9) ,
-the refrigerant circuit using a refrigerant charging
station (see Refrigerant circuit: Draining - Fill-
ing) (62A, Air conditioning).
aRemove:
-the lower engine tie-bar (see 19D, Engine mount-
ing, Lower engine tie-bar: Removal - Refitting,
page 19D-18) ,-the front axle subframe (see Front axle subframe:
Removal - Refitting) (31A, Front axle compo-
nents),
-the front left-hand wheel driveshaft (see Front left-
hand driveshaft: Removal - Refitting) (29A,
Driveshafts),
-the front right-hand wheel driveshaft (see Front
right-hand driveshaft: Removal - Refitting)
(29A, Driveshafts),
-the differential output seals (see Differential out-
put seal: Removal - Refitting) (21A, Manual gear-
box),
-the « engine and gearbox » assembly (see 10A,
Engine and cylinder block assembly, Engine -
gearbox assembly: Removal - Refitting, page
10A-74) ,
-the manual gearbox (see Manual gearbox: Re-
moval - Refitting) (21A, Manual gearbox).
-the « pressure plate - disc » assembly (see Pres-
sure plate - Disc: Removal - Refitting) (20A,
Clutch),
-the flywheel (see 10A, Engine and cylinder block
assembly, Flywheel: Removal - Refitting, page
10A-107) . Special tooling required
Mot. 1129-01Tool for fitting the crankshaft
seal, flywheel end (80 x 100 x
8 seal).
Equipment required
refrigerant charging station

10A-33
ENGINE AND CYLINDER BLOCK ASSEMBLY
Oil-coolant heat exchanger: Removal - Refitting
K9K
10A
REMOVAL
I - REMOVAL PREPARATION OPERATION
aPosition the vehicle on a two-post lift (see Vehicle:
Towing and lifting) (MR 411, 02A, Lifting equip-
ment).
aRemove:
-the engine cover,
-the front wheels (see Wheel: Removal - Refitting)
(MR 411, 35A, Wheels and tyres),
-the front wheel arch liners (see Front wheel arch
liner: Removal - Refitting) (MR 412, 55A, Exterior
protection),
-the front bumper (see Front bumper: Removal -
Refitting) (MR 412, 55A, Exterior protection).
aDrain the cooling system (see 19A, Cooling, Cool-
ing system: Draining - Refilling, page 19A-9) .
aRemove the expansion bottle bolt.
aRemove the expansion bottle.
aUnclip the cooling hose on the lower section of the
engine cooling fan.II - OPERATION FOR REMOVAL OF PART
CONCERNED
aDisconnect:
-the cooling hose (1) using the (Mot. 1448),
-the oil pressure sensor connector (2) .
aRemove:
-the bolt (3) from the oil filter support,
-the oil filter holder.
aRemove:
-the oil cooler nipple,
-the oil-water heat exchanger. Special tooling required
Mot. 1448Remote operation pliers for
hose clips .
121432
Note:
Be prepared for engine oil and coolant to flow
out.

10A-34
ENGINE AND CYLINDER BLOCK ASSEMBLY
Oil-coolant heat exchanger: Removal - Refitting
K9K
10A
REFITTING
I - REFITTING PREPARATION OPERATION
aUsing the buffing pads, clean the pressure faces of
the oil-water heat exchanger and the cylinder block.
aFit new seals on the oil-water heat exchanger with
soapy water.
aCheck the condition of the oil-water heat exchanger
nipple seals.
II - REFITTING OPERATION FOR PART
CONCERNED
aCoat the nipple with high resistance thread lock.
aRefit:
-the coolant-oil heat exchanger,
-the oil-coolant heat exchanger nipple.
aFit a new seal on the oil filter holder.
aRefit:
-the oil filter holder,
-the oil filter mounting bolt.
aTighten the oil filter mounting bolt.
aConnect:
-the oil pressure sensor connector,
-the cooling hose using the (Mot. 1448).
III - FINAL OPERATION
aClip the cooling hose on to the lower section of the
engine cooling fan.
aPosition the expansion bottle.
aRefit the expansion bottle bolt.aFill the cooling system (see 19A, Cooling, Cooling
system: Draining - Refilling, page 19A-9) .
aRefit:
-the front bumper (see Front bumper: Removal -
Refitting) (MR 412, 55A, Exterior protection),
-the front wheel arch liners (see Front wheel arch
liner: Removal - Refitting) (MR 412, 55A, Exterior
protection),
-the front wheels (see Wheel: Removal - Refitting)
(MR 411, 35A, Wheels and tyres),
-the engine cover. WARNING
The joint faces must be clean, dr y and free from
grease (avoid finger marks).
WARNING
The gaskets must always be replaced with new
gaskets.
Note:
The oil-water heat exchanger nipple seals cannot
be separated; the entire assembly must be
replaced.

10A-56
ENGINE AND CYLINDER BLOCK ASSEMBLY
Oil pump: Removal - Refitting
D4F or D7F
10A
aRemove:
-the nut,
-the cover,
-the guard,
-the threaded rod.
aConnect the oil-coolant heat exchanger hoses.
aPut the clips (3) in place using the (Mot. 1448).
aRemove the hose clamps (Ms. 583) from the oil-wa-
ter heat exchanger hoses.
aConnect the oil pressure sensor connector.
aRefit:
-the timing sprocket,
-the sump (see 10A, Engine and cylinder block
assembly, Lower cover: Removal - Refitting,
page 10A-6) .
aFit the lower engine support tool (Mot. 1379).
aRemove:
-the right-hand suspended mounting support bolts,
-the right-hand suspended mounting support,
-the upper timing cover bolts,
-the upper timing cover.aRefit:
-the timing belt (see 11A, Top and front of engine,
Timing belt: Removal - Refitting, page 11A-27) ,
-the crankshaft accessories pulley (see 11A, Top
and front of engine, Crankshaft accessories
pulley: Removal - Refitting, page 11A-20) ,
-the right-hand suspended engine mounting (see
19D, Engine mounting, Right-hand suspended
engine mounting: Removal - Refitting, page
19D-13) .
aRemove the lower engine support tool (Mot. 1379).
aRefit:
-the engine tie-bar (see 19D, Engine mounting,
Lower engine tie-bar: Removal - Refitting, page
19D-18) ,
-the accessories belt (see 11A, Top and front of
engine, Accessories belt: Removal - Refitting,
page 11A-3) ,
-the engine undertray,
-the front wheel arch liners (see Front wheel arch
liner: Removal - Refitting) (55A, Exterior protec-
tion),
-the front wheels (see Wheel: Removal - Refitting)
(35A, Wheels and tyres),
-the dipstick,
-the oil filter (see 10A, Engine and cylinder block
assembly, Oil filter: Removal - Refitting, page
10A-29) .
aTop up the engine oil (see 10A, Engine and cylin-
der block assembly, Engine oil: Draining - Refill-
ing, page 10A-22) .
aTop up the coolant level (see 19A, Cooling, Cool-
ing system: Draining - Refilling, page 19A-9) .
20779
D4F, and 780 or 782

10A-60
ENGINE AND CYLINDER BLOCK ASSEMBLY
Oil pressure: Check
D4F or D7F or K9K
10A
aPosition the engine oil pressure sensor tool (Mot.
836-05) fitted with suitable end pieces using the
(Mot. 1495-01) or a 1/2" long socket (12.7 mm
square drive).
aEnd pieces:
-D4F and D7F engines:
•end piece C + F
-K9K engine:
•end piece E + C + F
aStart the vehicle.
aMonitor the engine oil pressure as the engine oil
temperature increases (approximately 80˚C or the
first time the engine cooling fan is triggered)
which must not be lower than the pressure at idle
speed.
aIf the oil pressure is lower at idle speed, check that:
-the oil filter is not clogged,
-there is no dirt or swarf in the engine oil,
-the oil pump is in good condition and being correct-
ly driven.
aCheck the oil pressure at 3000 rpm.
aCheck the values:
-D4F and D7F engines:
•Idling: 0.8 bar
•3000 rpm: < 3.5 bars
-K9K engine•idling: 1.2 bar
•3000 rpm: < 3.5 bars
aSwitch off the engine.
aRemove the (Mot. 836-05) with the end pieces.
aRefit the oil pressure sensor (see 10A, Engine and
cylinder block assembly, Oil pressure sensor:
Removal - Refitting, page 10A-45) .
aWipe any oil run-off with a cloth.
aWait at least 10 minutes.
aCheck the oil level using the dipstick.
aTop up the engine oil level if necessary.
aStart the vehicle and check that there are no oil
leaks at the oil pressure sensor.
87363

10A-61
ENGINE AND CYLINDER BLOCK ASSEMBLY
Oil pressure: Check
K4M
10A
Oil pressure tables:
End pieces to be used:
I - REMOVAL PREPARATION OPERATION
a
II - CHECK
aRemove the oil pressure sensor (see 10A, Engine
and cylinder block assembly, Oil pressure sen-
sor: Removal - Refitting, page 10A-45) .aIn place of the oil pressure sensor, fit the (Mot. 836-
05) with suitable adapters using the (Mot. 1495-01)
or a 22 mm long socket.
aStart the vehicle.
aMonitor the engine oil pressure as the oil tempera-
ture rises (approximately 80˚C or the first time the
engine cooling fan is activated); it should not be less
than the pressure at idle speed.
aIf the oil pressure is lower than the pressure at idle
speed, check that:
-the oil filter is not clogged,
-dirt or swarf is not present in the engine oil,
-the oil pump is in good condition and being correct-
ly driven. Special tooling required
Mot. 836-05Oil pressure gauge kit.
Mot. 1495-0122 mm socket for removal -
refitting of oxygen sensors.
Engine Engine suffixMinimum oil pressure (bar) Maximu m o i l
pressure (max)
Idling speed 4000 rpm 4000 rpm
K4M 8540.5 3.1 4.4
Engine End pieces
K4M E+C+F
WARNING
Always check the oil level using the dipstick.
Do not exceed the maximum level on the dipstick
(could destroy the engine).
Correct the engine oil level if necessary before
delivering the vehicle to the customer.
Note:
When topping up the engine oil, always leave at
least 10 minutes before checking the level with a
dipstick.
87363

10A-93
ENGINE AND CYLINDER BLOCK ASSEMBLY
Engine - gearbox assembly: Removal - Refitting
K9K
10A
II - FINAL OPERATION
aRemove the.
aLubricate the seals using recommended air condi-
tioning oil to make fitting easier.
aRefit:
-the connecting pipes to the compressor,
-the connecting pipe union bolts on the compressor,
-the bolt for the connecting pipe mounting on the
compressor.
aConnect:
-the pressostat connector,
-the hose to the coolant pump inlet pipe using the
tool (Mot. 1448).
aFit:
-the hose clip on the coolant pump inlet pipe using
the tool (Mot. 1448),
-the earth on the front left-hand wing.
aRefit the earth nut on the front left-hand wing.
aClip:
-the engine compartment connection unit relay
plates,
-the fuse holders.
aRefit the fuses.
aConnect the preheating unit connector.
aRefit the earth nut on the front left-hand side mem-
ber.
aFit the engine compartment connection unit.
aRefit the engine compartment connection unit
mountings on the body.
aConnect the black connector.
aClip on the black connector.
aRefit:
-the engine compartment connection unit cover,
-a new clip on the battery mounting to hold the elec-
trical wiring.
aConnect the wiring connectors to the fan assembly.aClip the fan assembly wiring.
aRemove the blanking plugs.
aConnect the high pressure pump inlet pipe.
aClip on the fuel supply pipe.
aConnect the high pressure pump return pipe.
aClip on the fuel return pipe.
aRemove the blanking plugs on the clutch hydraulic
control and on the control pipe.
aConnect the clutch hydraulic control to the gearbox.
aClip:
-the clutch control hydraulic pipe on the gearbox,
-the gearbox controls on the cable sleeve stops,
-the gearbox controls on the gear selectors.
aConnect:
-the hoses to the heater radiator,
-the top hose to the water chamber.
aFit:
-the hose clips on the heater radiator using the tool
(Mot. 1448),
-the clip for the top hose on the water chamber us-
ing the tool (Mot. 1448).
aRefit:
-the front section of the intermediate pipe (see 19B,
Exhaust, Intermediate pipe: Removal - Refit-
ting, page 19B-28) ,
-the front right-hand wheel driveshaft (see Front
right-hand driveshaft: Removal - Refitting)
(29A, Driveshafts),
-the front left-hand wheel driveshaft (see Front left-
hand driveshaft: Removal - Refitting) (29A,
Driveshafts),
-the radiator mounting cross member (see Radiator
mounting cross member: Removal - Refitting)
(41A, Front lower structure),
-the front axle subframe (see Front axle subframe:
Removal - Refitting) (31A, Front axle compo-
nents),
-the engine tie-bar (see 19D, Engine mounting,
Lower engine tie-bar: Removal - Refitting, page
19D-18) . WARNING
To prevent any leaks, check that the seal and the
surface of the pipe are in good condition. The
seal and the surface must be clean and scratch
free.

10A-110
ENGINE AND CYLINDER BLOCK ASSEMBLY
Flywheel: Removal - Refitting
K4M
10A
REMOVAL
I - REMOVAL PREPARATION OPERATION
aPosition the vehicle on a two-post lift (see Vehicle:
Towing and lifting) (02A, Lifting equipment).
aRemove:
-the engine undertray,
-the battery (see Battery: Removal - Refitting)
(80A, Battery),
-the air filter unit (see 12A, Fuel mixture, Air filter
unit: Removal - Refitting, page 12A-13) ,
-the petrol injection computer (see 17B, Petrol in-
jection, Petrol injection computer: Removal -
Refitting, page 17B-20) ,
-the battery tray (see Battery tray: Removal - Re-
fitting) (80A, Battery),
-the front wheels (see Wheel: Removal - Refitting)
(35A, Wheels and tyres),
-the front wheel arch liners (see Front wheel arch
liner: Removal - Refitting) (55A, Exterior protec-
tion),
-the front bumper (see Front bumper: Removal -
Refitting) (55A, Exterior protection).
aDrain:
-the gearbox (see Manual gearbox oils: Draining -
Filling) (21A, Manual gearbox),
-the engine cooling system (see 19A, Cooling,
Cooling system: Draining - Refilling, page 19A-
9) ,
-the refrigerant circuit using a refrigerant charging
station (see Refrigerant circuit: Draining - Fill-
ing) (62A, Air conditioning).aRemove:
-the lower engine tie-bar (see 19D, Engine mount-
ing, Lower engine tie-bar: Removal - Refitting,
page 19D-18) ,
-the front axle subframe (see Front axle subframe:
Removal - Refitting) (31A, Front axle compo-
nents),
-the front left-hand wheel driveshaft (see Front left-
hand driveshaft: Removal - Refitting) (29A,
Driveshafts),
-the front right-hand wheel driveshaft (see Front
right-hand driveshaft: Removal - Refitting)
(29A, Driveshafts),
-the differential output seals (see Differential out-
put seal: Removal - Refitting) (21A, Manual gear-
box),
-the « engine - gearbox » assembly (see 10A, En-
gine and cylinder block assembly, Engine -
gearbox assembly: Removal - Refitting, page
10A-74) (21A, Manual gearbox),
-the manual gearbox (see Manual gearbox: Re-
moval - Refitting) ,
-the « pressure plate - disc » assembly (see Pres-
sure plate - Disc: Removal - Refitting) (20A,
Clutch).
II - REMOVAL OPERATION
aRemove:
-the flywheel bolts,
-the (Mot. 1677) (1) , Special tooling required
Mot. 1677Flywheel locking tool.
Equipment required
refrigerant charging station
Tightening torquesm
flywheel bolts70 N.m
109158