2004 DACIA SOLENZA Repair Manual

ENGINE E7J-26216
16 - 2
ALTERNATOR – STARTER
B. The indicator is lighting, engine being running.
This shows a charging failure, which may be caused by:
- alternator driving belt broken, charging wire connected to alternator is broken (+ per-
manent);
-alternator failure(rotor, stator, diodes or brushes);
- voltage regulator failure;
- an over voltage.
C. Client is claiming a charging defect, but the luminous indicator is correctly oper-
ating.
If the adjusted voltage is smaller than 13.5 V, check the alternator.
The defect may be caused by : -worn diode;
-b roken phase;
- collector wear or coal dust.
VOLTAGE CHECKING
Connect a voltmeter to the battery plugs and read its voltage value.
Start the engine and speed the e ngine till the voltmeter needle i s set on the adjusted voltage.
This voltage must be between 13.5 V and 14.8 V
Connect maximum of consumers; the voltage must still between 13.5 V and 14.8 V.
AT T E N T I O N !
In case electric arch welding is performed on vehicle obligatory disconnect the bat-
tery and the voltage controller (alternator).
Alternator
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16ENGINE E7J-262
16 - 3
ALTERNATOR – STARTER
INTENSITY (A)E NGINEE 7J
Nominal intensity 7 5 80
Minimal intensity, generated by the alternator with
maximum of consumers under operation 5 1 60
DIAGNOSTIC
Special tool: CLIP tester and accessories for physical measurements.
CH ARGING CIRCUIT CHECKING
CLIP tester i s enabling the a lternator checking, by m easuring t he genera ted vol tage and
intensity with and without electric consumers.
REMARK: The ammeter pliers is of inductive type 0 ÷ 1000 A. Its mounting is done
without the battery disconnecting, enabling so the memorized data preserving and the
adapting values from the injection c omputer.
Mount the ammeter di rectly on t he alternator e xit, having t he arrow directed towards the
alternator.
The measurements are to be performed in three stages :
- measurement of the battery voltage with contact taken off;
- measurement without consumers of the adjusted voltage and generated intensity;
- measurement, with maximum of consumers, of the adjusted voltage and generated in-
tensity.
The values resulting further to the measurements, lead to following interpretations:
- voltage battery (without consumers) < 12.3 V – indicating discharged battery.
Without consumers :
- adjusted voltage > 14.8 V – indicating defective regulator;
- adjusted voltage < 13.2 or charging current < 2A – indicating charging failure.
With consumers:
- adjusted voltage > 14.8 – indicating defective regulator.
- adjusted voltage < 12.7 – indicating that alternator charging current must be checked
compared with its characteristics:
If the measured current is too small, check the following:
- alternator wear (collector brushes, etc);
- battery connections;
- engine mass stripe;
- drive belt tension.
If the measured current is correct and the adjusted voltage is too small, the cause may be: -the vehicle has too many electric consumers;
- the battery is discharged.
Alternator
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ENGINE E7J-26216
16 - 4
ALTERNATOR – STARTER
SPECIAL TOOLS
MOT 1505 Belt tension measurement device
TIGHTENING MOMENTS (daNm)
Upper attachment screw 2,2
Lower attachment screw 5
MOT 1505
Ve
hicles without air conditioning.
DISMOUNTIN G
Place the vehicle on a two-column elevator.
Disconnect the battery.
Disconnect the fuel supply pipe.
Dismo unt :
- air filter;
- oil gauge pipe;
- alternator upper attachment screw;
- alternator’s belt;
- alternator tightening clamp.
Lift the vehicle.
Disconnec t the alternator electric connectors.
Di smount the alternator l ower attachment
screw.
Lower the vehicle.
Remove the alternator through the upper part.
REMOU NT I NG
Perform the dismounting operations in the
reverse order Tighten the alternator driving belt to 263
HZ ± 10% by means of the MOT 1505
device (see the method described in chapter
07 “ Accessories belts tightening”)
Tight e n to t he re qui red m om ent the
alternator’s attachment screws.
Alternator
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16ENGINE E7J-262
16 - 5
ALTERNATOR – STARTER
21
Vehicles equipped with air conditioning
DISMOUNTIN G
Place the vehicle on a two-column elevator
Disconnect the battery
Dismount the alternator upper attachment screw.
Dismount the front right wheel.
Lift the vehicle.
Dismo unt :
- protection fairing;
- lateral tie-rod ( 1);
-s hock absorber two attachment screws (2) on steering knuckle.
Swing over the steering knuckle and remove the right planetary transmission from the plan-
etary gear of the gearbox. Disconnect the electric connectors of the alternator.
Dismount the alternator lower attachment screw.
Dismount the alternator’s belt.
Remove the alternator, laterally by the right planetary transmission.
REMARK:
In order to replace the alternator belt, first dismount the accessories driving belt
(compressor and/or power steering pump).
R EMOU NT I NG
Perform the dismounting operations in the reverse order.
Tighten the alternator driving belt to 263 HZ ± 10% by means of the MOT 1505 device (see
the m ethod described in c hapter 07 “ Accessories belts tightening”)
Tighten to the required moment the alternator’s attachment screws.
REMARK:
A dismounted belt is not to be remounted, but replaced.
Alternator
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ENGINE E7J-26216
16 - 6
ALTERNATOR – STARTER
ENGINE STARTER
E7 J - 262 D 907 - M00 2T 13581
IDENTIFICATION
DIAGNOSTIC
Special tool : CLIP tester – TECHNIC for measuring the battery voltage and the absorbed
intensity in the starting stage.
OPERATION ABNORMALITIES THAT MIGHT BE NOTICED
- Battery failure = large voltage drop on starter during engine starting stage.
- Blocked starter = the absorbed current is very high.
- Solenoid failure = the absorbed current is very low.
In order to perform the measurements, it is necessary the engine drive by means of the starter,
but stopping the engine starting.
To do that, disconnect the RPM sensor (located on clutch casing).
REMARK:
After performing this checking, erase by means of the CLIP tester, the possible failures
memorized by the computer.
St arter
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16ENGINE E7J-262
16 - 7
ALTERNATOR – STARTER
TIGHTENI NG MOMENTS (daNm)
Starter attachment screws 4.4
Control bar attachment screw
on ge arbox connecting rod 2.7
DISMOUNTIN G
Place t he vehicle on a two-column elevator.
Disconnect the battery.
Dismount the attachment nuts of the gazes exhaust vessel.
Dismount the hoses support attachment nut on the engine lifting support.
Dismount the control bar attachment screw on the gearbox connecting control rod (recover
the bushing). Dismount the starter attachment screws (1).
Suspend the vehicle.
Disconnect the starter electric connectors.
Remove the starter through the lower part of the engine compartment.
R EMOU NT I NG
Perform the dismounting operations in the reverse order.
Tighten the screws and nuts to the required moment.
Fill the protection bellows of the gearbox connecting rod joint, with grease Molycote 33M –
10 ml.
St arter
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IGNITION AND INJECTION
17
17 - 1
PRESENTATION
The system is composed of : -electronic control unit (UCE injection);
-a double ignition coil;
-f our spark plugs;
- spark plugs cables.
OPERATING PRINCIPLE
Subject to the information received from different sensors, but mainly subject to engine RPM
and charge, the electronic control unit will establish the advance at ignition, will identify the cylinders
being at upper dead point and consequently , will control the corresponding coil to them.
This is producing the spark at the level of the two cylinders being at upper de ad point,
interrupting the mass connection of the corresponding coil.
Ignition system
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IGNITION AND INJECTION
17
17 - 2
IGNITION COIL
The system is including a double coil (X), controlled by the electronic control unit (UCE).
The coil has and electric connector (Y) with four ways, and is simultaneously producing sparks at cylinders
1 and 4, when it is controlled by the pin 32 of the UCE injection and at cylinders 2 and 3, when it is controlled
by the pin 1 of the UCE injection.
Ignition system
ELECTRIC CONNECTOR
PINS FUNCTION
AControlling ignition a t
cy linders 1 and 4
B Controlling ignition a t
cy linders 2 and 3
C Supply 12 V (+DC)
CHECKIN G RESISTANCE
BETWEEN PINS
A-C 0.52
± 10 % Ω
B-C 0.52 ± 10 % Ω
HT - HT 7.2 ± 10 % KΩ
X
Y
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