Dacia SuperNova (engine E7J). Manual - part 22

16

E7J-A-2/60 ENGINE

16 - 6

STARTING AND CHARGING

D

ISMO UNTING

(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 screw 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 steering swivel stand are taken off;
The steering swivel stand is lowered and the right-side planetary transmission is taken

off the planetary pinion of the gearbox;

The electric conductors of the alternator are disconnected;
The screw of the alternator is taken off;
The alternator is taken apart laterally past the right-side planetary transmission.

R

E

-M

O UNTING

The taking-apart operations 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 is blocked;
The engine is revolved three and a half crankshaft 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 this fits into the mounting tension tolerance; if not, the belt will be
stretched again until the recommended tension (263 Hz +/- 10%) is reached.

The inspection and the adjustment of the belt are done with the engine at ambient

temperature.

Tighten at the required moment, the alternator attachment 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.

ALTERNATOR

E7J-A-2/60 ENGINE

16

16 - 7

STARTING AND CHARGING

IDENTIFICATION

     E

NGINE

STARTER

E7J - A-2/60

D 907 - M00 2T 13581

DIAGNOSTICATION

Special 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 (the absorbed current is very high);
Coupling relay defect (the current absorbed is very weak).
In order to do the measurements one must carry the engine in starter mode, thus pre-

venting the engine to run.

To do that, the revolution sensor (located in the clutch crankcase) should be taken apart.

Remark: After doing these tests, erase the possible defects memorized

by the calculator with the tester.

STARTER

16

E7J-A-2/60 ENGINE

16 - 8

STARTING AND CHARGING

D

ISMO UNTING

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 removed (without disconnecting the link conduits) to the fore

part of the car in 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 starter are taken;

STARTER

The car is suspended;
The electric connectors of the starter are disconnected;
The starter is taken out through the bottom of the engine compartment.

R

E

-M

O UNTING

The taking-apart operations are done in the reverse order.
The screws are tightened at a 4.4 daNm couple.

 E7J-A-2/60 ENGINE

17

IGNITION AND INJECTION

17 - 1

 S

TATIC

 

IGNITION

P

RESENTATION

The system is made up of:

- electronic control unit;
- double ignition coil;
- four sparking plugs;
- spark plugs.

  D

ESCRIPTION

 

OF

 

FUNCTIONING

 

PRINCIPLE

According to the data received from

various sensors, but essentially according
to the revolution ratio and the load of the
engine, the electronic control unit 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 respective coil.

This causes the spark at the level of the

two cylinders that are at the upper center
point, thus interrupting  the mass-setting of
the respective coil.

T

H E

 

CO IL

The system contains a double coil, con-

trolled by the calculator.

Coil no. 2 has an electric connector (1) with

four ways, which simultaneously produce
sparks at cylinders nos. 1 and  4, when it is
commanded by pin no. 32 of the injection cal-
culator, and on cylinders no. 2 and 3 when it
is commanded by pin no. 1 of the same cal-
culator.

ELECTRIC CONNECTOR

Pins

Function

A

Commands ignition at

              cylinders nos. 1 and 4

B

Commands ignition at
cylinders nos. 2 and

C

Fuel supply (+DC)

    inter - pin

Rezisten
a

check

între pini

  A-B

   1  W

  A-C

0,5 

 W

  B-C

0,5 

 W

HT - HT

11 K

W

IGNITION SYSTEM