Page 217 of 891

20
CLUTCH
20 - 5
Clutch disk – Mechanism
TIGHTENING MOMENTS (daNm)
Clutch mechanism attachment screws 2
S. D. V. -uri necesare
MOT 582 Flywheel immobilizing sector
AMB 1518 Clutch centering device
A
REPLACEMENT
This opera tion is to be pe rformed after dismounting t he gearbox –engine a ssembly a nd
after t heir separation.
DISMOUNTING
M ount the i mmobilizing sector MOT
582. Dism ount the clutch mechanism
attachment screws.
Dismount the mechanism and the clutch
disk.
Perform a visual checking of :
- the wear of the engine flywheel and
of the mechanism plate; - t he c ondi t i on c r own t oo t hi ng for
starter; - the sealing at c rankshaft sealing gasket
level; - the wear of the pressure bearing guide
and of the control fork;
- the conditions of the clutch shaft grooves.
Replace the damaged part s and clean the
clutch shaft grooves.REMOUNTING
D egrease the friction surface of t he engine
flywheel.
Clean the grooves of the clutch shaft.
Check the disk sliding on the clutch shaft
Mo u n t the clutch disk (with hub
protuberance ( A) towards the engine
flywheel).
Center the clutch disk by means of the
centering device AMB 1518.
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Page 218 of 891
CLUTCH
20
20 - 6
Clutch disk – Mechanism
Mount the clutch mechanism.
Progressively screw “ radial way”, the mechanism attachment screws, then tighten
them to the re quired moment. Dismount the immobilizing sector MOT 582.
Lubricate with grease OLISTA LONG TIME 3EP R100 137188.
- bearing guiding tube;
- clutch releasing fork sliders;
- fork joint.
Check the pressure beari ng sliding on guiding tube.
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Page 219 of 891
20
CLUTCH
20 - 7
Pressure bearing – Clutch releasing fork
R EPLACEMENT
This operation is to be performed after separation of the gearbox. from engine
DISMOUNTING
Di smount:
- pressure bearing by swinging over the fork;
- protection bellows and remove the clutch-re leasing fork.
REMOUNTING
Lubricate the guiding tube, slides and fork joint with grease OLISTA LONG TIME
3EP R100 137188. Mount the fork and the protection bellows.
Mount the pressure bearing on the guiding tube with groins ( A) clips-attached on fork
Check the pressure beari ng sliding on guiding tube.
REMARK:
In case of an intervention not implying the gearbox dismounting, or after gearbox
mounting, the control fork is not to be lifted because the pressure bearing groins (A)
may come out from the clutch-releasing fork.
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Page 220 of 891
CLUTCH
20
20 - 8
S
PECIAL TOOLS
MOT 582 Flywheel immobilizing sector
.
Engine flywheel
TI GHTENING MOMENTS (daNm)
Flywheel screws 5 ÷ 5,5
REPLACEMENT
This operation is to be performed after dismounting the clutch mechanism and the ge arbox.
DISMOUNTING
Mount the immobilizing sector MOT 582.
Di smount the fl ywheel attachment screws.
The screws are not to be re used.
Di smount the engine flywheel.
REMOUNTING
Clean the holes thread from the cra nkshaft by means of a dry gauze.
Degrease the flywheel seating surfaces on the crankshaft .
Mount the flywhe el with new scre ws (the scre ws thread shall be lubr icated with
LOCTITE FRENETANCH).
Tighten the screws to the required moment.
Dismount the immobilizing sector MOT 582
REMARK
The flywheel attachment screws are to be replaced aft er each dismounting.
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Page 221 of 891
CV JH3 - 05121
MECHANICAL GEARBOX
21 - 1
Sectional view
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Page 222 of 891
CV JH3 - 05121
MECHANICAL GEARBOX
21 - 2
Identification
A - type of gearbox
B – index of gearbox
C – manufacturer’s series
D – the code for the manufacturing
000 000
0 000000
A B
D
C
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Page 223 of 891
CV JH3 - 05121
MECHANICAL GEARBOX
21 - 3
Tightening moments in daNm
TIGHTENING MOMENTS (daNm)
A ttachment screws of the mechanism crankcase on the
clutch – differential case 2.5
S econdary shaft screw 7
Primary shaft nut 19
Back cap fixing screws 2.5
Oil draining plug 2.5
R everse driving contact 2.5
S crews for fixing the bellows assembly – left transmission cap assembly 2.5
Screws for fixing gearbox on engine case (M10 – 90) 4.4
Screws for fixing gearbox on engine case (M10 – 35) 2.1
Nuts for fixing gearbox on engine 4.4
LOCTOU blocking element fixing screw 0.5
S crews for fixing RPM sensor on the clutch case 0.8
S crews for fixing the control axle assembly 2
S crews for fixing clutch cable support 4.8
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Page 224 of 891

CV JH3 - 05121
MECHANICAL GEARBOX
21 - 4
Particurarities
12R 5
4 3
Gr ila de viteze este i denticã c u cea de la c utiile de viteze montate pe automobilele Dacia
SupeRNova.
To engage the reverse driving, the gearbox lever is brought in neutral position, then it is en-
gaged like in any other gear gear The synchronizers are BORG – WARNER type.
The synchronizing hub – sliding collar, and the synchronizing hub – shaft assemblies are com-
posed of matching parts .
The synchronizing hubs are freely mounted on the secondary shaft and axially maintained by
means of ring type safety devices. The cylindrical moment of the differential is not adjustable.
The differential assembly is supported on the gearbox crankcases by means of ball bearings.
The primary and secondary shafts support at the clutch side is done by means of roll – bear-
ings, which get into direct contact with the shaft (the bearings do not have inner ring, its purpose
being taken over by the shafts). The reverse driving pinion is delivered mounted on the shaft.
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