fuel DACIA SUPERNOVA 2004 Repair Manual

01 SPECIFICATIONSEngine – Clutch - Gearbox............................. 01-1
Vehicle identification.. ................................. 01-2
02 LIFTING Mobile jack - Protection route;....................... 02-1
Elevator positioned under the carriage body... 02-3
03 TOWING All types.......................................................... 03-1
04 LUBRICANTS CONSUMABLES Condition....................................................... 04-1
05 DRAINING – FILLING Engine............................................................ 05-1
Gearbox.......................................................... 05-2
07 VALUES AND SETTINGS Dimensions..................................................... 07-1
Capaci ty - Qualities........................................ 07-2
Driving belts tightening and accesorie s.......... 07-3
Distribution belt tension................................. 07-4
Cy linder head tightening................................ 07-5
Wheeles and tyres........................................... 07-6
Br akes............................................................. 07-7
Dimensions under carriage body.................... 07-8
C hecking values of the fr ont axle angles........ 07-9
C hecking values of the rear axle angle s......... 07-10
10 ENGINE AND LOWER ENGINE UNITS Ingredients...................................................... 10-1
Motor-propelling group.................................. 10-2
Separation - Dismantling................................ 10-7
Characteristics................................................ 10-10
Rec overy engine.............................................10-17
Lowervcrankase..............................................10-37
Oil pump........................................................ 10-38
Tightening moments....................................... 10-39
11 UPPER AND FRONT ENGINE UNITS Distribution belt............................................. 11-1
Cylinder head fi tting....................................... 11-3
12 FUEL MIXTURE Characteristics................................................ 12-1
Cl apper body .................................................. 12-4
Intake cole ctor................................................ 12-5
Exhaust collector............................................ 12-6
13 PUMP SUPPLY
Br eaking fuel supply ..................................... 13-1
Injection pump............................................... 13-2
Petrol filter.................................................... 13-3
P upm flow...................................................... 13-4
Supply pressure.............................................. 13-5
14 ANTI-POLLUTION Petrol vapours-aspiration ............................. 14-1
16 STARTING AND CHARGING Alternator....................................................... 16-1
Starter............................................................. 16–7
17 IGNITION AND INJECTION Ignition system.............................................. 17-1
Sparking plugs.............................................. 17-2
Peculi arities.................................. ................ 17-3
Placi ng of elements........................................ 17-4
Idling regime adjustment............................... 17-9
Adjustment of the fuel mixture enriching...... 17-11
Enriching adaptive correction....................... 17-12
Diagnosing-Introduction... ............................ 17-15 Diagnosing-Interpreting the defects.............. 17-17
Diagnosing-Conformity test........................... 17-49
Diagnosing-Interpreting the states................. 17-55
Diagnosing-breakdown localization
algorithm....................................................... 17–66
19 COOLING - EXHAUST - FUEL TANK Characteristics............................................... 19-1
Filli ng and draining ...................................... 19-2
C ontrol.......................................................... 19-3
The schema.................................................... 19-4
Ra diator dismounting and remounting.......... 19-5
C ooling fan replacement
for vehicles with air conditioning................. 19-6
C ooling fan diagnostic
for vehicles with air conditioning................. 19-7
Re sist ance cooling fan replacement
for vehicles with air conditioning................. 19-9
C ooling fan replacement
for vehicles without air conditioning............ 19-10
C ooling fan diagnostic
for vehicles with air conditioning.................. 19-11
Water pump .................................................. 19-12
Dismounting - remounting exhaust................ 19-14
Emptyng of tank............................................ 19-16
Tank fuel description..................................... 19-17
Tank fuel....................................................... 19-20
Electric petr ol pump...................................... 19-21
20 CLUTCH Identification................................................. 20-1
Diagnostic.. ................................................... 20-3
Clut ch disc mechanism.................................. 20-9
Moteur et peripherics
General poinds vehicle0
1
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ENGINE E7J-A-2/6012
FUEL MIXTURE
CH ARACTERISTICS
ENGINE
Car Gearbox Ty p e Index Cylinder Stroke Cylinder
bore length volume
(mm) (mm) (cm3)
SupeRNova JH3-050 E7J A-2/60 75,8 77 1390 9,5/1
Check-ups in idle mood*
Motor Emisii poluan
i
Fuel
Type Index Mode CO(%) CO2(%) HC Lambda (minimum
(rot/min) (1) ppm l octanic number)
E7 J A-2/60 750+/50 0,5 14,5 100 0,97.. .. Unleaded petrol
max min max ....1,03 (CO95)
(1) at 2500 rot /min the CO value must be max. 0.30%;
* For water t emperature over 80
oC and after stabilizing at 2500 rot/mi n for 30
seconds; then turn ba ck into idle mode and the level of fumes is measured. The water-tempera ture a nd air-t emperature sensors are type NTC (negative
temperature coefficient), and the vari ation of their re sistance as to temperature
has the following evolution:
T (0C ) 0 20 40 80 90
A ir-T sensor
11970 - 7470 4045 - 3060 1600 - 1315 - -
R (Ohm)
Engine T 8000 - 67 00 3000 - 2600 1300 - 1100 300 - 270 215 -200
sensor
R (Ohm)
12 - 1
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ENGINE E7J-A-2/6012
FUEL MIXTURE
DENOMINATION PARTICULARITIES
Computer 90-ways connector
Injection system Multi-point sequential
Ignition PINIS R
W
Static wi th a double coil
Computer controlled ignition R
A-B1W
R
A-C0,5 W
R
B-C0,5 W
R
1-47+/-1KW
R
2-37+/-1KW
Detonation se nsor Piezoelectric type SAGEM
Tightening moment = 2 daNm
RPM SENSOR ELECTRICFIL or SIEMENS R = 200......270 W
Spark plugs EYQUEM - type RFN 58 LZ
CHAMPION - type RC 87 YCL
Fuel filter For EURO 96:
Attached under the vehicle in front of the fuel tank
Replacement on the occasion of the scheduled inspections
For EURO 00:
Into the fuel tank, attached on the fuel pump assembly.
It is no t replaced separate.
Fuel pump Immersed in the fuel tank
For EURO 96: - Flow: 1,3 l/min - Pressure: 3 bars at 12V tension
For EURO 00: - Pressure: 3,5 bars at 12V tension
Pr essure controller For EURO 96:
Pressure controller attached on the injection ramp
Controlled pressure: - 3 +/- 0,2 bars at zero depression- 2,5 +/- 0,2 bari at a depression of 500 mbars
For EURO 00:
Mounted into fuel tank on the fuel pump assembly
Controlled pressure: 3,5 bars
El ectric injectors SIEMENS
R = 14,5 +/- 1 W la 20
0C
+ 12 V supply
Step by s tep engine R
A-D = 52 +/- 5 W
R
B-C = 52 +/- 5 W
12 - 2
CH ARACTERISTICS
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ENGINE E7J-A-2/6012
FUEL MIXTURE
12 - 3
CHARACTERISTICS
DENOMINATION PARTICULARITIES
Valve potentiometer
Canister purging
valve
Oxygen sensor
At mospheric
pressure sensor
idle at maximum
acceleration
A - B 1300 W130 0 W
A - C 1500 W 2000 W
B - C 2000 W 1300 W
SAGEM
Supply tension= +12 V
R = 26 +/- 4W la 23
0 C
NGK
For EURO 96: an oxygen sensor attached on upstream of
catalyzer Generate d tension at 8500C:
- rich mi xture 750 +/- 50mV
- sa lt mixture 150 +/- 50 mV
He ating resistance R
A-B = 3 ..... .. 15 W
For EURO 00: two oxygen sensors attached one on
upstream and the othder one on downstream of catalyzer
DELCO ELECTRONICS
Stopped engine – shows an atmospheric pressure of
950...1050 mbar
Idle engine - 330 +/- 40 mbar
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ENGINE E7J-A-2/6012
FUEL MIXTURE
DIS M O UNT ING
The battery is disconnected.
The air tube is taken off the battery-prot ecting screen.
The four screws (1) for air-filter fixing are taken off.
The hose connecting the combustion-he ad cap and the air-filter i s disconnected.
The air-filter is taken apart
To disconnect:
-the accelera tion cable (the end of the cable is uncoupled from the command lever
of the clapper, and then it is taken off t he sleeve on the stand);
-the connectors:
I . of the step-by-step engine; II. of the clapper pot entiometer.
RE-MO UNT ING
The fitting of t he clapper body is replaced;
The same steps are taken as in the case of the dismantling, only in the reverse order.
12 - 4
1
I II
CLAPPER BODY
(no. 2 clamp is pulled upwards and the connector is taken off)
The command lever i s uncoupled off the body of t he clapper;
The clapper body is taken apart.
22
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ENGINE E7J-A-2/6012
FUEL MIXTURE
The following are taken apart:
- air-filter;
- accelera tion cable;
- injection ramp ( see Chapter Injec-
tion ramp );
The electric connectors are uncoupled: - atmospheri c pressure sensor;
- air tempera ture sensor;
- step-by-step engine;
- clapper potentiometer.
The fuel supply conduits are taken apart (bot h going- and return);
The clapper c ommand lever is uncoupled and the body of the clapper is taken off;
The screws and screw-nuts fixing the intake collector a re taken apart .
RE-MOUNT ING
The fittings of the intake collector are re placed;
The same steps are taken as in the case of the dismantling, only in the reverse order.
Tighten the inlet manifol d screws and nuts at the require d moment of 2.5 daNm. T
IG H TENING CO UPL E (daNm)
Screws and screw-nuts for intake collector 2.5 INTA
KE COLLECTOR
12 - 5
DISMOUNTING
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ENGINE E7J-A-2/6012
FUEL MIXTURE
TIGH TENING CO UPL E (daNm)
Screws for collector fi xing 2.5
DIS M O UNT ING
The thermic screen is taken apart;
The connection between the exhaust collector and the exhaust pipe is taken off;
The exhaust collector is taken apart
Re-mou nting
The same steps are taken as in the case of the dismantling, only in the reverse order.
The screws are tightened at the couple. EXHAUST COLLECTOR
12 - 6
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E7J-A-2/60 ENGINE13
PUMP SUPPLY
AIM:
To avoid accidental fire s owing to fuel leaks, which can be caused by an accident.
F
UNCT IO NING:
The shock-sensor lies in the engine compartment: it is mounted on the left-side shock-
absorber column. Du ring a shock, the ball of the sensor goes out of its slot, a nd thus achieves the breaking
of the electri c c ircuit be tween the relay commanding the petrol-pump and t he pe trol-pum p
itself.
PLACING B ACK THE SH OCK-SENSOR IN OPERAT IONAL MO DE
In order to resume the functioning of t he shock-sensor it will suffice to press its top,
and thus replace the ball in its former position. BREAKING FUEL SUPPLY
13 - 1
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E7J-A-2/60 ENGINE13
PUMP SUPPLY
CAU T ION!
When th e fuel circuit is opened, any
pe trol jet due to residue pressure must
be averted by mea ns of a gauze.
DIS M O UNT ING
The battery is disconnected.
The air-filter is taken out.
To disconnect:
-no. 1 fuel supply tube;
-no. 3 return fuel tube;
-no. 4 pressure-regulator tube.
Injection ramp Screws no. 2 are taken off.
The ramp is taken apart .
In orde r to t a ke a p ar t a n i n j ect o r,
w ithdraw c lamp no. 5 and then pull t he
injector.
RE-MO UNT ING
Replace t he t orric fittings at the base of
the i njectors (if t he i njector has been taken
apart as well a s the fitting at the end of t he
injector). For the supply junctions and the return
petrol tubes to be c orrectly coupled a click
must be heard the moment the coupling is
done.
The rest of the ope rations are done in
the reverse order a s that of the taking a part.
INJECTION RAMP
13 - 2
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E7J-A-2/60 ENGINE13
PUMP SUPPLY
LOCAT IO N
The petrol filter i s mounted under the car, in front of the petrol tank.
PETROL FILTER
13 - 3
REPLACE MENT
The replacement of the petrol filter i s recommended for a ny ove rhauling or for max.
20,000 kilometers.
CAUTION!
When the fuel circuit is opened, any petrol jet due to residue pressure
mu st be averted by means of a gauze.
DIS M O UNT ING
Before every taking-a part operation, prevent fuel from leaking.
Clamps no. 1 are pushed and the speedy junctions are disconnected.
Screw no. 3 is taken off and the petrol filter i s taken apart.
R
E-MOUNT ING
Ob serve the flowing direction of the fuel (which is shown by an arrow inscribed on
the filter).
Connect the speedy junctions back, by hand-pushing.
A correct coupling of the speedy junctions is ensured when there is a click at the
moment of the coupling.
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