Dacia Solenza (engine E7J). Service manual — part 22
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ENGINE E7J-262
16 - 1
ALTERNATOR – STARTER
IDENTIFICATION
ENGINE
ALTERNATOR
INTENSITY
VALEO A11 VI 87
75A
E7J - 262
VALEO A13 VI 212
80A
CHECKING
After 15 minutes of heating under a 13.5 V tension.
ENGINE RPM
ALTERNATOR 75 A
ALTERNATOR 8
0A
(rot/min)
(A)
(A)
1000
46
54
2000
68
75
3000
71
80
4000
72
82
OPERATION / DIAGNOSTIC
These vehicles are equipped with alternators with internal ventilation, incorporated voltage
regulator, and charging indicator on the instrument panel, which must operate as follows:
- when the contact is set on, the indicator is on;
- after engine starting, the indicator is off;
- if indicator goes on during engine running, then it shows a charging failure.
INCIDENTS SEEKING
A. The indicator is not lighting when setting the contact on
Check :
- the electric connections must be well done;
- the indicator bulb is not worn (when the circuit is mass connected, the bulb must be on).
Alternator
ENGINE E7J-262
16
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;
- broken 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 engine till the voltmeter needle is 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.
ATTENTION !
In case electric arch welding is performed on vehicle obligatory disconnect the bat-
tery and the voltage controller (alternator).
Alternator
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ENGINE E7J-262
16 - 3
ALTERNATOR – STARTER
INTENSITY (A)
ENGINE
E7J
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.
CHARGING CIRCUIT CHECKING
CLIP tester is enabling the alternator checking, by measuring the generated voltage 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 computer.
Mount the ammeter directly on the alternator exit, having the 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
ENGINE E7J-262
16
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
Vehicles without air conditioning.
DISMOUNTING
Place the vehicle on a two-column elevator.
Disconnect the battery.
Disconnect the fuel supply pipe.
Dismount:
- air filter;
- oil gauge pipe;
- alternator upper attachment screw;
- alternator’s belt;
- alternator tightening clamp.
Lift the vehicle.
Disconnect the alternator electric connectors.
Dismount the alternator lower attachment
screw.
Lower the vehicle.
Remove the alternator through the upper part.
REMOUNTING
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”)
Tighten to the required moment the
alternator’s attachment screws.
Alternator
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