Dacia SuperNova (engine E7J). Service manual — part 52

CV JH3 - 050

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MANUAL GEARBOX

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The roll bearing in the crankcase is dismounted in the opposite direction to the clutch, by

means of the C.V. 553 device.

Ensure that device is well fixed upon depressing the bearing.

BEARING REMOUNTING FROM THE CLUTCH – DIFFERENTIAL CRANK-

CASE

The remounting shall be performed using the same C.V. 553 device, the mounting directions

of the bearing being towards the clutch.

BEARING DISMOUNTING FROM THE CLUTCH – DIFFERENTIAL CRANK-

CASE

C.V. 553

GEARBOX DISMOUNTING

CV JH3 - 050

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MANUAL GEARBOX

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SECONDARY SHAFT

SECONDARY SHAFT DISMOUNTING

Dismounting of the secondary shaft is performed starting from the 4 th step.
Dismount the elements, in the following order:

1. - the support washer
2. - gear IV pinion
3. - synchronizing ring
4. - synchronizer for gear III and IV
5. - stopping ring
6. - grooved washer
7. - synchronizing ring
8. - pinion of gear III
9. - grooved washer

10. - stopping ring

11. - grooved washer

12. - step pinion II
13. - grooved washer
14. - stopping ring
15. - synchronizer ring
16. - synchronizer for steps I and II
17. - synchronizing ring
18. - step I pinion.

GEARBOX DISMOUNTING

CV JH3 - 050

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MANUAL GEARBOX

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SECONDARY SHAFT REASSEMBLING

Before reassembling the secondary shaft, perform the parts checking, as follows:

- the pinions and claws tooth must not show chips or excessive wear;
- ensure that working surfaces of the shafts and the inner parts of the pinions do not show

traces of gripping or abnormal wear.

When reassembling, clean the oiling grooves made in the secondary shaft and all its component

parts are pre – oiled.

Take into consideration that synchroniser hubs are matched with the sliding.
It is recommended to mark the positions of the sliding compared to the hubs.
The stopping rings shall be replaced after every dismounting.
Reassembling of the secondary shaft shall be performing the dismounting operations in the

reverse order.

The stopping rings are replaced after each dismounting.
For mounting and dismounting the stopping rings, a pair of safety pincers to keep the ends

apart, and, on the opposite side, a pair of flat tipped pincers to prevent the stopping ring breaking,
are to be used.

GEARBOX DISMOUNTING

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MANUAL GEARBOX

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REPLACEMENT OF THE SECONDARY SHAFT BEARINGS

The secondary shaft bearing from the mechanisms crankcase is identical to the one from the

primary shaft so that its dismounting and remounting are performed in the same way as for the
primary shaft.

Bearing dismounting and mounting in the clutch crankcase is performed by means of the C.V.

522 device.

The bearing is crimped by means of a mandrel (puncher) in four equidistant points on a

55 mm diameter.

x = 0,9 1,3 mm

NOTE:

When dismounting the bearing from the clutch-differential crankcase, the deflector

located behind the bearing will be damaged, being necessary its replacement with a
new one ( this is ensuring the inner oiling of the secondary shaft).

:

-

C.V. 552

GEARBOX DISMOUNTING