2004 DACIA SUPERNOVA battery

E7J-A-2/60 ENGINE16
16 - 3
ST ARTING AND CHARGING
DIAGNOSING
Special device: Tester CLIP - SAGEM and accessories for physical measurements.
I
NSPE CT ION OF CHARG ING CIRCUIT
The CLI P - SAGEM tester allows the inspection of the alternator, by measuring the volt-
age and the curre nt supplied with, and without electri c consumers.
NOTE: The Ampere pincers are of the inductive type (0-1000 A). Its mounting
wi ll be done without disconnecting the battery, thus allowing for the memorized
da ta and the adapting values in the injection calculator to be preserved.
M ount the ammeter clamps directly to t he alternator exit, having the arrow oriented
towards this one
.
The measurements are effected in thre e steps: - measuring the battery voltage without contact on;
- measuring the regulated voltage and the current supplied without consumers;
-
measuring the regulated voltage and the current supplied with a maximum of consumers.
The values obtained as a result of t he measurements lead to the following interpretations: -the voltage of t he ‘empty’ battery < 12.3 V: so, the battery is flat;
With no consumers: -regulated voltage > 14.8 V: so, the regulator is faulty;
-regulated voltage (‘empty’) < 13.2 V or charging current < 2 A: so, there is a defect
of charging. With consumers: -regulated voltage > 14.8 V: so, the regulator is faulty;
-regulated voltage (‘empty’) < 12.7 V:the alternator charging current in regard to its
characteri stics must be checked.
IN TENSITY (A) EN GINEE7J
Rated intensity 75 80
Minimal intensity, which has to be supplied by the
altern ator to all working consumers 51 60
If the measured output is too little, the following will be checks:
-wear of alternator (collector brushes, etc.);
-battery connections;
-the mass braid of the engine;
-conformity of alternator;
-tension of carryi ng belt.
If the measured output is correct and the regulated voltage is too little, the cause may be:
-the car has too many electric consumers;
-the battery is flat. AL
TERNATOR
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16E7J-A-2/60 ENGINE
16 - 4
ST ARTING AND CHARGING
SPECIAL DEVICES
MOT 1505BELT TENSION MEASURIN G DEVICE
DIS M O UNT ING
The car is set on a two-column lifting stand;
Disconnect the electric connections from the battery.
The fuel supply conduit is uncoupled;
The following are taken off: - air filter;
- the oil-gauge tube;
- the top scre w of the alternator;
- the alterna tor belt;
- the stretching fl ange of the alternator.
The car is suspended.
The electric connectors of the alternator are uncoupled;
Di smount the alternator l ower attachment screw.
Lower the vehicle.
The alterna tor is taken out at the top.
AL TERNATOR
R
E-MOUNTING
The mounting opera tions are done in the reverse orde r;
The carrying belt of t he alternator is stretched to get the re commended ( 263
Hz+/- 10% ) mounting voltage;
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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 ENGINE16
16 - 7
ST ARTING AND CHARGING
IDENTIFICATION
ENGINE STARTER
E7J - A-2/60 D 907 - M00 2T 13581
DIAGNOS TICATION
S pecial device: CLIP - SAGEM-TECHNIC TESTER which measures the battery
voltage and the intensity absorbed by the starter.
ANOMALOUS FUNCTIONING THAT CAN BE SETTLED
-Battery failure –contact drop on the starter when starting the engine.
-Blocked starter (t he absorbed curre nt is very high);
Coupling relay defect (the current absorbed is very weak).
In order to do the measurements one must carry t he engine in starter mode, thus pre -
venting the engine to run.
To do t hat, the revolution sensor (located in the c lutch cra nkcase) should be t aken apart .
Remark: After doing these tests, erase the possible defects memorized
by the calculator with the tester.
STA RTER
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16E7J-A-2/60 ENGINE
16 - 8
ST ARTING AND CHARGING
DIS M O UNT ING
The car is put on a two-column lifting stand;
The battery of storage cells is disconnected;
The screw-nuts fixing the degassing vessel are taken apart.
The degassing vessel is re moved (without disconnecting the link conduits) to the fore
part of the car i n order to facilitate access to the screws fixing the starter; The screws fixing the command bar on the connecting rod of the gearbox are taken off
(the jack is retrieved);
The screws no. 1 fixing the start er are taken;
STA RTER
The car is suspended;
The electric connectors of the starter are disconnected;
The start er is taken out through the bottom of the engine compartment. R
E-MOUNT ING
The taking-apart opera tions are done in the reverse order.
The screws are tightened at a 4.4 daNm couple.
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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 - 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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E7J-A-2/60 ENGINE17
IGNITION AND INJECTION
17 - 10
In case of an excess (false air, non-conforming attachment of the valve body, etc) the
idling regime will i ncrease and the va lue “ RCO idling” will lower, returning so, at the
nominal idling regime. The value of the (PR 021) parameter will decre ase in orde r to realign idling RCO (PR
022) within the optimal ra nge. In c ase of a lack of air ( choking up, etc) the reasoning is
conversely : RCO idling (PR 022) will i ncrease, and t he va lue i s adjusting RCO idling (PR
022) on a avera ge nominal value.
IMP ORTANT
After battery disconnection/reconnection, it is obligatory engine starting and maintain
it for several minutes i n order to perform a correct resetting of t he adaptive correction
of the RCO idling. IDLING REGIME ADJUSTMENT
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