Dacia Solenza (engine E7J). Manual - part 22

16

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

16

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