Dacia SuperNova (engine E7J). Manual - part 54

CV   JH3 - 050

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MANUAL GEARBOX

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The internal control axles must not  show any  deformations or wear on the milling for locking

ball, and their sliding on bearings must be done make freely, without excessive clearance.
The contact surfaces of the forks with collar of the rocking must not show either deformations or
wear.

Ensuring of the control forks axle is performed by means of the balls and springs located in

the holes made in the mechanisms crankcase.

The locking of the control axles is done by means of some cylindrical rolls mounted inside the

clutch–differential crankcase.

GEARBOX DISMOUNTING

CV   JH3 - 050

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MANUAL GEARBOX

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CONTROL AXLE REMOUNTING
When remounting the control axle, replace the selection finger pin with a new one.
Remounting is done by performing the dismounting operations in  the reverse order, after  all

parts have been oiled with oil.

CONTROL AXLE  DISMOUNTING

This operation is to be performed after

crankcases separation.

The control axle is provided with a stopping

flap LOCTOU – (A) attached on the  crankcase.

The sealing is ensured by means of the gasket (B).
Remove the elastic pin of the selection finger

(C), then dismount the attachment screws, and
retrieve the control axle assembly.

In order to replace the gallery bearing bush-

ings of the control axle, the C.V. 1162 device,
or a tube with the outer diameter 16.5 mm are
to be used. Before mounting the bushings shall
be oiled.

GEARBOX DISMOUNTING

INTERNAL CONTROLS

CV   JH3 - 050

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MANUAL GEARBOX

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The assembling surfaces must be flat (small

imperfections can be eliminated by means of a thin
file).

Place the axle and  1-2 fork assembled on the 1-

2 sliding collar of the secondary shaft.

The two shafts (primary and secondary) are taken

together with the fork and 1-2 axle and positioned
at the same time into the clutch – differential crank-
case.

The crown and the secondary shaft are  rotated

until the end of the secondary shaft fits into the bear-
ing.

Mounting the blocking roll of the shaft ˚ (A).

With the 1 – 2 axle in free position, the following

are mounted:

- synchronizing assembly 3 – 4  together axle

and 3 – 4 fork;

- mount the for pin 3 – 4 by means of the CV

949 device.

Mount the blocking roll of the 5 th step axle (B).

A
B

GEARBOX DISMOUNTING

CRANCKASE ASSEMBLING

CV   JH3 - 050

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MANUAL GEARBOX

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Check the positioning of the 5 th gear oiling

collector and of the aerating connection.
Additionally, ensure (check) if the aerating tube is
not damaged or clogged.

Apply a layer  of LOCTITE 518 on the gasket

surface between the clutch crankcase and the
mechanism crankcase.

Engage the  3 -d gear step.
Mount the spring and the 5 th gear step locking

ball into the crankcase of the mechanism.

Press the locking  ball and  mount  the  mechanisms

crankcase.

Ensure the correct positioning of the two

centering bushings and of the magnet

Mount the springs and the locking balls 1-2 and

3-4 in the mechanisms crankcase, then the false
axes A with a 13 mm diameter are introduced.

Than mount the followings:

- the control axle for the  5 gear and reverse

driving (A);

- the axle and the reverse driving pinion (B)

assembly, by easy lifting the primary shaft.

GEARBOX DISMOUNTING