Dacia Solenza 2004, Repair Manual

Page: 90 / 891

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
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