Dacia SuperNova (engine E7J). Manual - part 66

31

FRONT BEARING ELEMENTS

31 - 5

SUSPENSION BALL JOINT

DISMOUNTING

Perform the same operations like dismounting the suspension arm.
Unscrew the two attachment nuts (3) of the arm shafts, without dismounting them.

DISMOUNT :

- the two ball joint attachment  screws (4) on the arm;
- the ball joint.

REMOUNTING

NOTE :
 Ensure the presence of the protection plate (A) on the suspension ball joint axle.

Mount the suspension ball joint on the arm, by means of the two attachment screws and

tighten their nuts at the required moment.

Perform then, the same operations as for suspension arm remounting.

BELLOWS REPLACEMENT

Dismount the damaged bellows.
Clean the ball joint in the area covered by the

bellows ( ball joint body and pin)

Fill the new bellows with approximate 3 g

MOS2 special grease

Mount the new bellows on the ball joint
Place on the bellows by means of a resistant

thread, the fixing clip (B), then the fixing clip A
(F = 19).

4

31

FRONT BEARING ELEMENTS

31 - 6

BRAKE GASKETS

NOTE

In order to maintain the brake efficiency,

the replacement of the brake pads shall be
made only in complete kit.

Never fit brake pads of different makes

and different qualities .

DISMOUNTING

Lift the vehicle by means of a two columns

elevator;

Dismount the front wheel;
Disconnect the wear sensor wire;
Dismount : - the safety of the wedges (1);

- the wedges, by sliding them.

Detach the caliper assembly from the fork

together with the flexible hose;

Remove :

- the elastic  blades
- the brake pads

Remount :

- the brake pads their places in the fork;
- the elastic blades;
- the caliper;
- the wedges and their locks.

Reconnect the wear  sensor wire.
Press several times the brake pedal.
Mount the wheels.
Get down the vehicle from the elevator the

ground.

NOTE

It is forbidden to push the brake pedal

after the calipers were dismounted from
the fork.

If the brake pads are not fully used but

on their friction surface, especially in the
middle pad channel, there are material
traces, it is recommended the cleaning of
these surfaces in order to avoid the noise
when braking.

REMOUNTING
Push the caliper piston by means of the

FR 500 special tool.

SPECIAL TOOLS

FR 500

Pushing piston device

FR 500

31

FRONT BEARING ELEMENTS

31 - 7

BRAKE CALIPER

DISMOUNTING

Lift the vehicle by means of a two columns

elevator.

Dismount the wheel.
Disconnect the wear sensor wire
Drain the brake fluid from the reservoir

    Remove the locks and the caliper wedges;

Unscrew the rigid duct screw from the brake

flexible hose and detach the caliper assembly.

NOTE

If it is necessary to dismount the

caliper fork, unscrew the two attachment
screws M 12.

When remounting the fork, replace the

Grower washers, tighten the screws at the
required moment of 6.5 daNm then seal
them with FIXAMED R 58.

REPAIRING

Dismount the protection gasket.
Extract the piston using a wooden wedge and

a compressed air source.

Remove the sealing gasket from its seat in the

caliper groove by means of a steel blade.

Clean with alcohol the parts, replace the

damaged ones, mounting being performed in the
dismounting reverse order, after previously all
parts have been oiled with brake fluid.

NOTE

Before remounting to the wheel, check

the sealing of the caliper assembly.

TIGHTENING 

MOMENTS (daNm)

Wheel nuts

7,5

Rigid duct on front flexible screw

1,5

Purging screw

1

Flexible hose - caliper

2

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FRONT BEARING ELEMENTS

31 - 8

BRAKE CALIPER

REMOUNTING

Perform the dismounting operations in the reverse order plus the following operations :

- fill the caliper with brake fluid in order to facilitate the brake system purging;
- purging the brake system.

BRAKE CALIPER SEALING CHECKING

Connect to the caliper, a pressure gauge attached to a compressed air source.
Place a  wooden wedge in order to block the piston.
Create a 0,3 bars pressure in the caliper.
Dip the caliper into a vessel with alcohol.
Move the piston several times to remove the air from the sealing gasket seat.
Check the sealing of the brake caliper at various pressures, without exceeding the pressure of 2 bars.
If the brake shows air leaks by the piston, perform at its dismounting.
Replace the piston, the gasket, or the caliper body, as the case stands.
Perform again the sealing test.