Dacia SuperNova (engine E7J). Service manual - part 81

MECHANICAL ELEMENTS CONTROL

37

HYDRAULIC RECEIVER REPLACEMENT

This operation shall be performed after dismounting of the engine-gearbox assembly and after

disconnecting of the engine from the gearbox.

DISMOUNTING
Dismount the two attachment screws and dismount the hydraulic receiver.

REMOUNTING
Perform the dismounting operations in  the reverse order.
Tighten the screws  at the required moment of 2.1 daNm.

PHYDRAULIC CIRCUIT PURGING

1. CIRCUIT REFILLING

Check if the clutch pedal is in the “up” position, maintain it by hand if necessary.
Fill the reservoir  with brake fluid.
Remove the protection cap of the purging connection 1.
Connect a transparent hose at the purging connection to recover the brake fluid.
Retrieve the clip 2 (do not definitely remove it in order to limit the movement of the feeding

pipe).

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CLUTCH HYDRAULIC CONTROL

MECHANICAL ELEMENTS CONTROL

37

Retrieve the feeding pipe (towards the arrow) to enable the fluid passing through the connection 1.
Bleed a little bit of fluid.
Close the purging connection (move the feeding pipe in reverse way).

2. FINAL PURGING OF THE CIRCUIT

a) Slowly push the clutch pedal to maximum position and keep it pushed.
Wait aprox. 10 seconds then open the purging connection.
b) Close the purging connection, release the clutch pedal, and slowly lift it by hand to

the upper position ( if the pedal does not come back itself in this position ).

Repeat the operations a and b till bubbles are not coming our  through the purging.

connection, then  repeat five more  times these operations in order to be sure about a good circuit
purging.

These repeated purging allow “ the cleaning “ of the circuit from the air bubbles eventually

remained in the circuit after the circuit filling and purging.

An air bubble as little may be, remained in the circuit, may lead to operating deficiencies such

as: defective clutch pedal return or  gears change noise being able to lead to a wrong  diagnosis or
an inopportune replacement of a part of the clutch circuit.

CLUTCH HYDRAULIC CONTROL

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MECHANICAL ELEMENTS CONTROL

37

DISMOUNTING

The dismounting of the gears changing lever shall be performed after dismounting the central

case .

Dismount under the vehicle the control lever.
Dismount under the vehicle the four attachment screws of the central case.
Dismount the assembly composed of control case and gears control lever.

THE GEARS CONTROL

REMOUNTING
Perform the dismounting operations in  the reverse order.
Tighten at the required moment :

- the control case attachment screws

1.2 daNm

- the control bar connection screw with the GB connecting rod 2.7 daNm
- the connection screw of the control bar with the control lever 1.2 daNm

Grease the  parts of the joint composed of control bar and GB connecting  rod with MOLYKOTE

33M grease.

Introduce in the protection bellows aprox. 10 ml of grease.

NOTE
The tightening of the connection screw of the control bar with the control

lever shall be performed after adjustment of the gearbox control.

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MECHANICAL ELEMENTS CONTROL

37

GEARS CONTROL ADJUSTMENT

This is to be performed after  mounting the engine-gearbox  assembly and the assembly lever-

control case every time when :

- dismounting of the engine-gearbox assembly, the control bar or the assembly lever-

control case;

- establishing of failures such as: gear change impossibility or unexpected gear  uncoupling,

gear blocking.

For the gear control adjustment the CV 550 device is  to be used;
Mount the CV 550 device on the assembly lever- control case;
Attach the control bar to the control lever end;
Place the gear lever in the device seat and fix it in this position by means of the device handle;
Tighten the attachment screw 1 of the bar to the lever at the required moment of 1.2 daNm;
Dismount the CV 550 device from the control box.
Check the gears coupling.

THE GEARS CONTROL

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SPECIAL TOOLS

CV 550

Linkage adjusting device