oil pressure 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-2/6010
10 - 38
ENGINE AND LOWER ENGINE UNITS
DIS M O UNT ING
The oil in the engine is emptied.
The following are taken apart: - Motor-Propelling set frame;
- lower crankcase.
The screws for fixing the oil-pump on the crankcase are taken apart;
The carrying chain is taken off the oil-pump pinion;
The cap of the oil-pump is taken apart.
The play of the pinions in the oil-pump is checked.
R
E-MOUNT ING
The dismantling operations are done in the re verse order.
Motor-oil filling-up i s done.
The pressure of the oil at 80
o is checked:
idle mode: 1 bar
4000 rot/minute 3 bar Sc
rews for fixing oil-pum p 2.5
Sc rews for fixing oil-pum p cap 1 T
IG H TENING CO UP
LES (daNm)
OIL-PUMP ON THE CAR OIL-PUMP
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ENGINE E7J-A-2/6011
UPPER AND FRONT ENGINE UNITS
SPECIAL TOOL- AND-CHECK SETS
MOT.1202-01 -”CLIC” collar-pincers
MOT.1505 -Device for measuring belt tension
MOT.484 -Device for jacket maintaining -Wrench for angular tightening
-Pincers for elastic collar
TIG H TENING CO UPL E S (daNm )
S crew-nut of stretching runner/pulley 5
Screw of crankshaft pulley 2+68
o+/-6o
Screws of pendular suspension stand 6.2
Screw-nut of hydro-elastic buffer 3.7
Wheel Screws 7.5
Co mbustion-head Screws 2+97
o+/-2o
To take apart :
-the connector of the induction coil;
-the fue l hoses (t he going- and re -
turn circ uit); -the connectors of the injectors;
-the plugs of the sparks;
-the induction coil.
11 - 3
CYLINDER HEA D FITTING
D
IS M O UNT ING
The car is placed on a two-column lift -
ing stand; The battery i s disconnected;
The cooling circuit is emptied at the
jack situated at the lower pa rt of the radia-
tor; The distribution belt is taken apart (see
Chapter Distri bution Belt);
The following are taken apart: -air-filter;
-the c onnector of the c lapper-posi-
tion potentiometer (1); -the acceleration cable;
-the connector of the atmosphe ric
pressure sensor (2);
-the co nnector of the step-by-step
engine (3); -the connector of t he air temperature
sensor (4) on the intake collector;
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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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E7J-A-2/60 ENGINE17
IGNITION AND INJECTION
17 - 4
PLAC ING OF ELEMENTS
1.Can
ister-draining valve;
2. Air -filter;
3. Det onation sensor (tightening couple: 2.5 daNm);
4. Atmo spheric air-pressure sensor;
5. Step-by -step idle mode-adjustment engine;
6. Cla pper position potentiometer;
7. Air- temperature sensor;
8. Inje ction calcul ator;
9. Shock-s ensor;
10. Fuse-and- relay box;
11. Revolution sensor;
12. Water- temperature sensor;
13. Oxyg en sensor (tightening couple: 4.5 daNm);
14. Igniti on coil;
15. Carbon canister.
1 14 3 5 6 7 4 2 11
9
10
15 13 \
12 8
PLACING OF ELEMENTS
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E7J-A-2/60 ENGINE17
IGNITION AND INJECTION
17 - 41
DIAG
NOSING-INTERPRETING THE DEFECTS
DEFECT
PRESENT
AIR-CONDITIONING COMPRESSOR RELAY COMMAND CIRCUIT
1. Open circuit or short-circuit to mass of the way to pin 10 of the
calculator
2. Short-circuit at 12 V along the way to pin 10 of the calculator25.
Check the connection and the condition of the 584 compressor relay.
Change the connector if necessary.
Check the presence of +12 V at pole 3 of the 584 compressor relay.
Check fuse S6 in the engine compartment.
Remedy it if necessary.
Check the presence of mass at pole 2 of the584 compressor relay
Remedy if necessary.
Check that the insulation and the continuity of the circuit:
pin 10 calculator
♦ pole 2 of the 584 compressor relay.
Remedy if necessary.
Check the coil of the 584 relay.
Change relay if necessary.
The prob lem is not yet solved! Consequently, the injection calculator must be changed.
CAUTION! The destruction of the calculator has probably been caused by an electric shock.
The cause of the destruction must be found before mounting a new
calcul ator.
Erase defects memorized by the computer.
Perform the steps under “Suggestions” to confirm the repair.
Remedy other possible defects.
AFTER REPA IR
Condition of breakdown detection by the calculator:
-take the contact, and wait for the dialogue with the tester to be lost,
then set the contact and resume dialogue.
Condition of performing the diagnosing:
-defec t is present
-the defect has been memorized but is recorded in the “present” state.
Note: The calculator will command the compressor relay only if the con-
d itions are met which allow the good operational mode of the air-condi-
tioning installation (pressure of refrigerating agent in installation, work-
ing electric circuit between calculator and A.C. start switch).
Refer to directions of A.C installation repairing.
S UGGESTIONS
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E7J-A-2/60 ENGINE17
IGNITION AND INJECTION
17 - 56
DIAG
NOSING-INTERPRETING THE STATES
STATEIDLE MODE ADJUSTMENT
SUGGESTIONS There shou
ld be no defect present or memorized
Check the resistance of the step-by-step engine for the idle mode adjustment.
Change it if necessary.
Check the insulation and the continuity of the cabling along the circuits:
- pin 12 calc ulator ♦ pin B step-by-step engine
- pin 41 calc ulator ♦ pin A step-by-step engine
- pin 42 calc ulator ♦ pin C step-by-step engine
- pin 72 calc ulator ♦ pin D step-by-step engine
Remedy if necessary, and then go on with the diagnose, watching the tolerance value of
the idle mode rotation ratio.
The id le mode rotation
ra tio< minimal limit. The id le mode rotation ratio is too small.
-Check th e functioning of the enrichment adjustment.
-Clean the air supply circuit (clapper body, step-by-step engine) as they seem to be dirty.
-Ch eck th e oil level of the engine (too high a level causes splash lubrication)
-Ch eck the pressure of petrol (see if it is not too small)
-Ch eck en gine compression with the “CLIP TEHNIC” tester
-Ch eck the adjustment of the rocker-arms and the settling of the distribution.
-Ch eck the ignition system
-Ch eck the in jectors.
If all the above are correct, then the step-by-step engine will have to be replaced.
AFTER REPAIRPerform again the conformity test.
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E7J-A-2/60 ENGINE17
IGNITION AND INJECTION
17 - 57
DIAG
NOSING-INTERPRETING THE STATES
The idle mode rotation
ra tio > maximal limit. The id
le mode rotation ratio is too great.
- Chec k the oil level of the engine
- Chec k the good functioning of the atmospheric pressure sensor.
- Check the tubes connected to the admission collector.
-C heck the fittings of the admission collector
- Check the watertightness fittings of the clapper body
- Check the watertightness of the power-brakes.
- Chec k the presence of the nozzles of the oil-vapour re-aspiration circuit
- Chec k petrol pressure.
- Check the adjustment of the rocker-arms and the settling of the distribution.
If all the above are correct, then the step-by-step engine will have to be replaced.
Perform again the conformity test
AF T E R REPAIR
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E7J-A-2/60 ENGINE17
IGNITION AND INJECTION
17 - 66
DIAG
NOSING-BREAKDOWN LOCALIZATION ALGORITHM
STARTING PROBLEMS
1.
Do not use this information before having done the complete check-up
with the tester!
SUGGESTIONS
♦♦
♦♦
Check if there is petrol in the fuel tank (do not rely on the
on-board in
dices). Check if it is the fuel recommended by
the manufacturer.
Disconnect the tube between the draining valve and the
intake collector and strangle it up. If the disturbances disap-
pear, the cause was the draining valve.
Connect the “CLIP TEHNIC” device to do this test in ac-
cordance with the usual manner of work.
Connect the tester “CLIP” and do the test corresponding to
the check-up of the rotation signal.
Gently touch the step-by-step engine in order to possibly
unbloc k it.
Check the fuel
Check the canister
draining valve♦♦♦♦
Check the engine
co
mp ression
Check the
engine flywheel
Check the step-by-
step engine
♦♦ ♦♦
♦
♦
Check if there are no broken tubes.
Check the state of the sparking plugs and the ignition coil.
Check the tubes and
hoses
♦♦♦♦
Check the ignition♦♦♦♦
Check the flow and the pressure of the fuel: the condition
of
the petrol-pump, of the pressure regulator. Check the
injectors (flow, shape of jet)
Check if the exhaust circuit is not strangled-up and the
cata lyst is not stopped-up.
Check the fuel-
supply circuit
♦♦♦♦
Check the exhaust
system
♦♦♦♦
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E7J-A-2/60 ENGINE17
IGNITION AND INJECTION
17 - 67
DIAG
NOSING-BREAKDOWN LOCALIZATION ALGORITHM
IDLE MODE PROBLEMS
Do not use this information before having done the complete check-
up w ith the tester!2.
SUGGESTIONS
Check if there is petrol in the fuel tank (do not rely on the
on-board indi ces). Check if it is the fuel recommended by
the manufa cturer.
Check the fuel

Check if there are no broken tubes.
Check the tubes and hose
s.
♦
♦
Check the state of the sparking plugs and the ignition coil.
Check, on the o il ga uge , if the le ve l of the oil is not too h igh.
Connect the tester “CLIP” and do the test corresponding
to the check-up of the rotation signal.
Gently touch the step-by-step engine in order to possibly
unblock it.
Check the condition of the fittings.
Check, after taking them apart, whether the injectors leak.
Check if the clapper body is not clogged.
Check the ignition
Check the engine oil level
Ch eck the step-by-step engine
Check the intake collector
Check the injectors
Ch eck the body of the clapper
♦
♦
Check the engine flywheel♦
♦
♦
♦
♦
Check the flow and the pressure of the fuel: the condition
of the pe trol-pump, of the pressure regulator. Check the
injectors (flow, shape of jet)
Check if the exhaust circuit is not strangled-up and the
cata lyst is not stopped-up.
Check the fuel-supply
circuit
Check the exhaust system
♦
♦
A
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