air condition 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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SPECIFICATIONS
01
VEHICLE IDENTIFICATION
a.. Manufactu rer identification code;
b. Code of the vehicle;
c. Gearbox ty pe code;
d. Engine type code and driving location ( according to VIN code structure);
e. Vehicl e code;
f. Trailer ma ximum authorized weight without braking system;
g. Homologation number for the importer country;
h. VIS sign-one character for year model code + 7 characters for the chassis manufacturing number;
i. Maximum technical admissible weight of the loaded car;
j. Maximum admissible weight with trailer with braking system;
k. Maximum technical admissible weight on front axle;
l. Maximum technical admissible weight on rear axle.
LABEL T YPE OVAL PLATE
The se lf- adhesive label type oval plate is stuck on the right lateral side surface of the
dashboard. This enables the identification of the vehicle type and of its equipment, being exclusively
used fo r after-sale activity.
01 - 3
1,1
2,1 2,2
4,1 4,2
The reading of the codes marked on the oval plate type label
Caption:
Line 1
1.1 Cod type auto APV (after-sale):
B41A(E U 9 6 ) B41B(EU00) B41D(1 5 .04)
Line 2
2.1 Le vel of equipping: E0, E1, E2, E3
2.2 Options eq uipping code:
Line 4
4. 1 Technical definition code, driving place.
S2 : Left hand drive
4.2 Options equipment code: A: Normal suspension K: Without pre-filter
C : Temperate climate M: Steering mechanical system
E: Warm climate R: Without variable shock absorber
F : Normal heating T: Without plate corrector
G : Air conditioning V: Without wheels anti blocking (ABS)
B = represents body type
A ,B,D = represents engine type E7J, 1397 cmc, front wheel
drive type, mechanical gearbox.
Attention
Do not unstuck or damage the label from the lateral side surface of the dashboard. This
label represents the only way of vehicle identification needed to the after sale services, for a
period of 8 (eigh t) years from the purchasing date.
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ENGINE E7J-A-2/6010
10 - 6
ENGINE AND LOWER ENGINE UNITS
RE-MOUNTING
The dismantling (taking apart ) operations are done in the reverse order.
The screw fixing the compressor conduits to the couple is fastened (1.2 daNm).
The air-conditioning circuit is filled ( 0,61 kg) with HFC 134 a refrigera ting agent.
(see chap. Conditioned air).
ADDITIONAL DIRECTIONS FOR AIR-CONDITIONED CARS
D
IS M O UNT ING
The Freon in the air-conditioning circuit is emptied.
The compressor-coming conduits are dismantled.
MOTOR-PROPELLING GROUP
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14E7J-A-2/60 ENGINE
ANTI-POLLUTION
RE-ASP
IRATION CONDITIONS
The canister-purging valve is controlled by pin 4 of the UCE injection, when : - water tempera ture > 50
oC;
- air tempera ture > 15
oC;
- the valve position outside idle position.
It is possible the reading of the RCO value ( opening cyclic ratio ) of the canister
purging valve, by means of the CLIP tester.
THE CHECKING OF THE CANISTER PURGING VALVE OPERATION
A non-operation of t he petrol vapors re-a spiration system may lead to the fuel c on-
sumption increase and to a unstable idling. It is necessary to check if the purging valve exit is correctly connected to the carbon
canister. Check also the piping condition between the canister and the fuel tank (sealing,
clogging on layout). PETROL VAPOURS-ASPIRATION
14 - 2
1. CO L LEC
TEUR ADMISSIO N
2. SOUPAPE PURG E
3. C ANI STER
4. RE SERVO IR
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14E7J-A-2/60 ENGINE ANTI-POLLUTION
Check at idling if there is a depression, by fitting a pressure gauge (-3…+ 3 bars) at the
purging valve exit (B) t owards canister. Is there any depression?
YES - Set off the contact . Using a vacuum pump, apply a 500 mbars depression at
the (C ) connection of t he purging valve. The value of t he re ad depre ssion must not vary
more than 10 mbars within 30 seconds. If change i s more than 10 mbars, then purging
valve is damaged and must be replaced. Valve cleaning of small active carbon part icles
may be tried, by low-pressure compressed air blowing at the valve (B) connection NO - When conditions of purging valve controlling are accomplished and this one
does not open, c heck its control electric circ uit ( be tween UCE i njection pin 4 and purging
valve), from continuity or short-circuit point of view. The RCO value of the signal received by the purging valve from the computer, may be
read by means of the CLIP tester in PROL 23. The m inimal value is of 0.7% (corresponding
to the closed position of the purging valve).
P
LACING - DIS M O UNT ING
Both t he c arbon c anister and the draining va lve are mounted by means of a stand on the
lining of the right-side front wing of the car.
The channellings of the c anister and the electri c conector c ommanding the draining
valve are disconnected;
The sleeve for fixing the dra ining valve is taken off and the valve is taken apart .
The carbon canister is taken apart .
REMOUNTING
Perform in the reverse orde r the dismounting opera tions.
14 - 3
PETROL VAPOURS-ASPIRATION
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16E7J-A-2/60 ENGINE
16 - 6
ST ARTING AND CHARGING
DIS M O UNT ING
(in the air -conditioning variant)
The car is placed on a two-column lifting stand;
The electric connections are uncoupled from the battery;
The following are taken apart: -the top scre w of the alternator;
-the belt of the alternator;
The right-side front wheel of the car is taken apart;
The car is suspended;
The two screws fixing the shock-absorber on the steeri ng swivel stand are taken off;
The steeri ng swivel stand is lowered and the right-side planetary tra nsmission is taken
off the planetary pi nion of the gearbox; The electric conductors of the alternator a re disconnected;
The screw of the alternator is taken off;
The alterna tor is taken apart laterally past the right-side planetary tra nsmission.
R
E-MOUNT ING
The taking-apart opera tions are done in the reverse order;
The carrying belt of the alternator is stretched to obtain the mounting tension recom-
mended (263 Hz +/- 10% );
The position of the alternator i s blocked;
The engine is revolved thre e and a half cra nkshaft turns;
The reading end of the MOT. 1505 measuring device is placed in the measuring area;
The tension in the belt is measured;
It is checked whether t his fits into the mounting tension tolera nce; if not , the belt will be
str etched again until the re commended tension ( 263 Hz +/- 10%) is reached.
The i nspection and the adjustment of the belt are done with the engine at ambient
temperature .
Tighten at the require d moment, the alternator a ttachment screws :- screw M10 (lower attachment)-5 daNm
-screw M10 (upper attachment)-2.2 daNm.
Remark: Once dismounted, a belt is not to be remounted, but replaced.
AL TERNATOR
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E7J-A-2/60 ENGINE17
IGNITION AND INJECTION
17 - 3
I N J E C T I O N S Y S T E M
Peculiariti es of the multi-point system
90-pin calculator made by SIEMENS.
Multi-poi nt sequential injection. It commands an injector at a time, in turns.
S tatic ignition with double ignition coil.
Canister-dra ining valve controlled in a cyclical relation to the opening.
Correction of idle mode system in keeping with: -air-conditioning (AC);
-battery vol tage.
On -board injection light indicator;
Maximal load / regimen:
-6200 rot/min for gears: I, II, and III;
-6000 rot/min for gears: IV and V. PECULIARITIES
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E7J-A-2/60 ENGINE17
IGNITION AND INJECTION
17 - 5
8. Injection calculator;
9. Shock-sensor;10. Revoluti on sensor;
11. Water-temperature sensor.
9
8
1
11
The fo
llowing relays can be identified in the fuse-box;
B = M otor-ventilator group relay (with Air-Conditioning)
H = Fuel-pump relay
C = Motor-ventilator group relay (without AC).
PLACING OF ELEMENTS
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E7J-A-2/60 ENGINE17
IGNITION AND INJECTION
17 - 8
THE ANTI-START FUNCTION
R
EPLACING UCE INJE CT IO N CAL CUL ATOR
The UCE injection
calculator is delivered without a code, but it is able to memorize a code.
When mounting a new c alculator, it will have to memorize the code anti-start fuction
singularity of this car, then one has to check if the a nti-start function is operational. In
order to do that, the following operations must be done: -the contact is set for a fe w seconds, then it is taken out;
-after t aking out the key, the anti-start function is actived.
I
NSPE CT ING THE ANT I - ST ART FUNCT IO N
Take the key out of the contact and after 10 seconds the anti-start light indicator on the
board must begin to flash on and off. When setting the contact on, the anti-start ing indicator must turn off.
THE INFLUENCE OF THE AIR-CONDITIONINGON THE INJECTION SYSTEM
The air-conditioning installation ( AC) uses a variable cylinder-volume compressor.
There are the following connections between the air-co nditioning and the petrol injection system:
-pin no. 46 of t he injection calculator re ceives the i nformation “ solicit accelera ted
idle mode” when the button for t he air-conditioning i nstallation is pre ssed and the pres-
su re of the freon in the installation is above a limit.
-the i nformation “ absorbed power” does not infl uence the idle m ode re gime, but lets
the calculator know about the value of the couple taken by the compressor, and the calcu-
lator will opera te the step-by-step engine, through pins nos. 12, 41, 42 and 72, in order to
compensate for the couple fall. With the tester it can read in t he m enu : « Parameters l ist «
the power absorbed by the compre ssor, wich will be between 300 and 5000 W. The value
that is re ad will be of m inimum 300 W, irre spective of the coupled / uncoupled state of the
compressor.
-pin no. 10 of the injection calculator will command the E relay located in the fuse-
box of the engine compartment, which will couple the compressor.
The injection calculator c an prohibit the coupling of the AC compre ssor:
-it does not allow the coupling of the compresso r before 10 seconds after the starting of the engine;
-accordi ng to the couple re quired from t he e ngine by the driver - a nd in cert ain
s ituations according to the power absorbed by t he c ompressor - the calculator c an forbid or
authorize the starting of the compressor;
-if the water temperature is higher than, or equal to 11 5
oC, the therm ic prot ection is oper-
ated, which will not authori ze the start ing of the compre ssor; -the overload protection doe s not permit t he coupling of t he compressor when the
revolution ratio of the engine is over 5900 rot/min.
PLACING OF ELEMENTS
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E7J-A-2/60 ENGINE17
IGNITION AND INJECTION
17 - 9
IDLING REGIME ADJUSTMENT DUE TO BATTERY VOLTAGE
The idle mode of t he engine is influenced by the voltage of the battery with a view t o
compensating the voltage fa ll caused by the coupling of the consumers when the battery is
poorly charge d; this imposes an increase in the idle mode revolution ra tio, so the ratio of
the alternator will be incre ased by increasing the charging voltage. The lower the voltage,
the more significant the correction applied, which begins under 12.7 V.
The idle mode regime can thus be incre ased up to 830 rot/min.
If the injection calculator receives the information “command AC coupling”, then the
idle mode revolution ra tio will go up to 850 rot/min.
VA LUES « IDLING RCO « AND « IDLING RCO ADAPTATION «
P
RINCIPL E:
In order to use the information related to the parameters value “PR 021= RCO idling“
and “ PR 022= RCO idling”, the CLIP tester is to be used, which will be connected at the
diagnosis socket and at the vehicle battery ( or lighter socket). Select on tester m enu “COMPUTERS TEST”, then “PETROL INJECTION” . Find then
“FUNCTIONS TEST” and read here the progress of the PR 021 and PR 022 parameters.
In normal operation conditions, warm engine, the value RCO idling ( PR 022 ) is changing
between a maximal a nd a minimal value, so that nominal idling RPM is obtained. It is
possible that further to an operation dispersion ( runni ng in, engine choking up,etc) the
value “RCO idling” to get closer t o the minimal or m aximal value. The adaptive correction (PR 021 ) on “ RCO idling” (PR 022) is allowing r eaching at slow
variations of the engine air necessities, so that “RCO idling” is re-set on an average nominal
value. The parameters PR 021 and PR 022 are progressing among the following limits :
RA TED IDLE MOD E REGIME
(PR 006)
750 rot / min
RCO idling (PR 022)
5% £ X £ 12 % RCO idling
(PR 021)
-3 % .......+7 %
ID
LING REGIME ADJUSTMENT
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