engine DACIA SUPERNOVA 2004 Manual PDF

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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E7J-A-2/60 ENGINE16
16 - 5
ST ARTING AND CHARGING
The position of the alternator i s blocked.
The engine is revolved thre e and a half cra nkshaft turns;
The reading end of t he MOT. 1505 measuring device is placed in the measuring area;
The tension in the belt is measured;
It is checked whether t his fits i nto the mounting tension tolerance; if not, the belt will
be stretched again until the recommended tension ( 263 Hz +/- 10%) is reached.
The inspection a nd t he a djustment of the belt a re done with t he e ngine at ambient
temperature . Tighten at the require d moment, the alternator a ttachment screws :
- screw M10(lower attachment)-5 daNm
-screwM10 (upper attachment)-2.2 daNm.
Remark: Once dismounted, a belt is not to be remounted, but replaced.
MOT. 1505
MOT. 1505
AL
TERNATOR
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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 - 1
S
TATIC IG NIT IO N
PRE S E NT
AT IO N
The system is made up of:
- electronic control unit;
- double ignition coil;
- four sparking plugs;
- spark plugs.
DES CRIPT IO N OF FUNCT IO NING PRINCI PL E
Accordi ng to the data received from
various sensors, but essentially according
to the revolution ratio and the load of t he
engine, the electronic control uni t will de-
termine the ignition advance; it will also
identify the cylinders that are set at the
upper center point and, consequently, will
command the re spective coil. This c auses the spark at the level of the
two cylinders t hat are at the upper center
point, thus interrupting the m ass-setting of
the respective coil. T
HE CO IL
The system c ontains a doubl e c oil, con-
trolled by the calculator.
Coil no. 2 has an electric connector (1) with
four ways, whi ch si m ultaneousl y produc e
s parks at cylinders nos. 1 and 4, when it i s
commanded by pin no. 32 of the i njection cal-
culator, and on cylinders no. 2 and 3 when it
is commanded by pi n no. 1 of the same cal-
culator.
ELECTRIC CONNECTOR
Pins Function
AC ommands ignition at
cylinders nos. 1 and 4
BC ommands ignition at
cy linders nos. 2 and
CFuel supply (+DC)
inter - pin Rezisten
a
check între pini
A-B 1 W
A-C 0,5 W
B-C0,5 W
HT - HT 11 KW
IGNITION SYSTEM
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E7J-A-2/60 ENGINE17
IGNITION AND INJECTION
17 - 2
EngineMakeType
E7J - A-2/60 EYQUEM RFN 58 LZ CHAMPION RC 10 PYC
Distance between electrodes: 0,9 mm
Tightening couple: 2,5 - 3 daNm
Plane stool with fitting
SPARKING PLUGS
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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 - 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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