Dacia SuperNova (engine E7J). Manual - part 16

ENGINE E7J-A-2/60

11

UPPER AND FRONT ENGINE UNITS

Tightening couples (daNm)

Screws of wheels

7.5

Screw of the crankshaft pulley                 2+68

o

+/-6

o

Screw-nut of stretching runner

5

Screws right-side stand

       6.2

Screw-nut hydroelastic buffer

        3.7

D

ISMONTING

The car is placed on a lifting stand.
The fore part of the engine is propped

on the frame using the MOT.545 device.

The following are taken apart:

-front right-side wheel;
-the right-side pendular suspension;

11 - 1

-the alternator belt;
  -the carrying belt of the compressor

(AC);

-the pulley of the crankshaft and its hub;
-the carrying pulley of the compressor;
-the distribution crankcases.

DISTRIBUTION BELT

ENGINE  E7J-A-2/60

11

UPPER AND FRONT ENGINE UNITS

The engine is set at the tuning point (see Chapter 10, pages 10-19);
The screw-nut of the stretching runner is loosened;
The distribution belt is taken off.

R

E

-M

O UNTING

A new distribution belt is mounted (see Chapter 10, pages 10-33);
The tension in the distribution belt is checked and adjusted, by means of MOT.1505

device, at the value of 145-185 Hz.

The operations are done in the reverse order of those in the dismantling process;
The screws are tightened at the couple;
It is compulsory to tighten the crankshaft pulley at a 2 daNm couple plus an angle of

68

o

+/-6

o

;

The compressor pulley (AC) is re-mounted;
The belt of the alternator and that of the compressor are stretched, oberving the

values of the mounting tension:

Alternator:                  263 Hz+/- 10%
Compressor:                222 Hz+/- 10%.

11 - 2

DISTRIBUTION BELT

ENGINE E7J-A-2/60

11

UPPER AND FRONT ENGINE UNITS

SPECIAL TOOL-AND-CHECK SETS

MOT.1202-01

-”CLIC” collar-pincers

MOT.1505

-Device for measuring belt tension

MOT.484

-Device for jacket maintaining
-Wrench for angular tightening
-Pincers for elastic collar

  T

IGH TENING

  

CO UPLES

  (daNm )

Screw-nut of stretching runner/pulley

5

Screw of crankshaft pulley

2+68

o

+/-6

o

Screws of pendular suspension stand

6.2

Screw-nut of hydro-elastic buffer

3.7

Wheel Screws

7.5

Combustion-head Screws

2+97

o

+/-2

o

To take apart:

-the connector of the induction coil;
-the fuel hoses (the going-  and re-

turn circuit);

-the connectors of the injectors;
-the plugs of the sparks;
-the induction coil.

11 - 3

CYLINDER HEAD FITTING

D

ISMO UNTING

The car is placed on a two-column lift-

ing stand;

The battery is disconnected;
The cooling circuit is emptied at the

jack situated at the lower part of the radia-
tor;

The distribution belt is taken apart (see

Chapter Distribution Belt);

The following are taken apart:

-air-filter;
-the connector of the clapper-posi-

tion potentiometer (1);

-the acceleration cable;
-the connector of the atmospheric

pressure sensor (2);

-the connector of the step-by-step

engine (3);

-the connector of the air temperature

sensor (4) on the intake collector;

ENGINE  E7J-A-2/60

11

UPPER AND FRONT ENGINE UNITS

The hoses of the thermostat stand are

disconnected;

To take apart:

-the thermic screen;
-the exhaust collector;
-the alternator;
-the guide of the oil-level gauge;

To take apart:

-the combustion-head screws, ex-

cept the screw corresponding to A po-
sition, which is only loosened, then the
combustion-head is turned round the re-
maining screw;

-the cylinder-head;

The jacket-maintaining  MOT.484

device is mounted.

Check the plane of  the cylinder-head.

11 - 4

CYLINDER HEAD FITTING