Dacia Pick-Up 1304/1305/1307. Service manual — part 51
MANUAL GEARBOX
21
21 - 10
TIGHTENING MOMENTS
ADJUSTEMENT VALUES
Distance between the conical gears: 59 mm.
Differential gear bearings pre-tightening : - reused bearings : free, without clearance;
- new bearings : 1-3 daN.
Gear teeth clearance: 0,12- 0,25 mm;
Clearance in differential gear: max. 0,1mm
T
IGH TENING
MO MENTS
(daNm)
- Half crankcases assembling screws :
* M7. . . . . . . . . . . . . . . . . . . . . . . . 1,9 - 2,4
* M8. . . . . . . . . . . . . . . . . . . . . . . . 2,8 - 3,3
- Back cap attachment screws. . . . . . . . . . . . . . . . .. 1 - 1,4
- Clutch housing attachment screws:
* M8. . . . . . . . . . . . . . . . . . . . . . . ... 2 - 2,8
* M10. . . . . . . . . . . . . . . . . . . . . . . . 3,2 - 4
- Reverse drive selector shaft nut
. . . . . . . . . . . . . . . 2 - 2,5
- Crown attachment screws. . . . . . . . . . . . . . . . . .. 9 - 11
- Speedometer endless screws. . . . . . . . . . . . . . . ... 10 - 12
- Primary shaft nut. . . . . . . . . . . . . . . . . . . . .. 6
- Differential gear nut lock screws
. . . . . . . . . . . . . . .. 2,4
- Filling or emptying plug. . . . . . . . . . . . . . . . . .. 2 - 2,8
- Lock nut of the speedometer fixing screw
. . . . . . . . . . 0,1 - 0,3
- Backing contactor. . . . . . . . . . . . . . . . . . . . . 2 - 3
- Base plate attachment screws :
* M6. . . . . . . . . . . . . . . . . . . . . . . . 1 - 1,4
* M7. . . . . . . . . . . . . . . . . . . . . . . . 1 - 1,4
- Breather valve. . . . . . . . . . . . . . . . . . . . . .. 1 - 1,9
- Shifter shaft nut
. . . . ..
. . . . . . . . . . . . . . . . . 4 - 4,5
- Plug M16. . . . . . . . . . . . . . . . . . . . . . . .. 1 - 1,5
- Secondary shaft flange nut
. .
. . . . . . . . . . . . . . ... 10 - 12
- 4X4 differential flange attachment M8 screws. . . . . . . . . 2 - 2,8
- 4X4 differential cap attachments M7 screws
. . . . . . . . . . 1 - 1,4
MANUAL GEARBOX
21
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INGREDIENTS
MATERIALS
Parts that are to be obligatory replaced, if they were dismounted: paper gaskets,
annular oil rings, toothed crown attachment screws, speedometer endless screw, elastic
pins, primary shaft nut, secondary shaft nut, reverse selector shaft nut, shifter shaft nut.
M
ATERIALS
U
SE
80W/90;
API GL 5 Oil
Parts lubrication upon mounting
LOCTITE 518
Sealing : half crankcases, clutch casing, flange od
differential hub (4x4)
RHODORSEAL 5661
Transmissions pins sealing
LOCTITE 577
Backing selector; plug M 16
Grease
UM 170 Li Ca Pb 2M
Lubrication of knuckles and contact parts.
MAINTENANCE
The maintenance of the 365,50 C, 51 C type gearboxes consists in repeatedly
performing certain revisions, according to the performed mileage as mentioned bellow:
- gearbox oil replacement : is done after covering the first 800 – 1000 km and than
periodically, every 20.000 km;
- checking of gearbox oil level – periodically, every 5000 km.
The oil in the gearbox is replaced
through the emptying (B) and filling (A)
plugs.
The oil in the gearbox should reach the
level of the orifice uncovered by the
filling plug (A).
If the level is lower than that, add oil
until it starts flowing through the orifice.
The plugs are tightened according to
the required moment (2,4 daNm).
MANUAL GEARBOX
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DISMOUNTING - REMOUNTING
GEARBOX DISMOUNTING – REMOUNTING FROM THE VEHICLE
NOTE: For the vehicles equipped with injection system ,first dismount RPM
transducer attached on the clutch casing, to avoid its damaging during gearbox
dismounting.
Disconnect the battery.
Disconnect:
-starter power cable;
-supply wire of cutting relay.
Unscrew the three attachment screws of
the starter shield.
Take out the starter, by drawing it along
the shaft.
Unscrew the attachment screws of the
gearbox upper part on the engine block.
Dismount the clutch cable.
Mount the crossbar TF 509, for maintaining
the half front axe, between the shock absorber
and the suspension lower arm shaft
(GB 365,GB 51 C).
Place the vehicle on the elevator and lift
it.
Drain the oil from the gearbox by unscrewing
the threaded plug and recover it.
Dismount the front wheels.
Dismount the transmission lock pins, by
means of the GB 31 B mandrel.
Dismount by means of the TF 476 extractor:
- the steering joint;
- the upper suspension joint.
Rock the steering knuckle support and take
out the transmission off the propeller shaft.
Perform the same operations for the other
side of the car.
MANUAL GEARBOX
21
21 - 13
DISMOUNTING - REMOUNTING
Disconnect the vacuum hoses and the
electrical connector of the vacuum capsule
(G.B. 51 C).
Dismount the 4 attachment screws of
the secondary shaft flange and rock the
transmission (G.B. 51 C; 50 C).
Disconnect the speed gear control by
unscrewing the control auxiliary rod
screws.
Unscrew the attachment nut of the
exhaust pipe.
Disconnect the backward driving
contact wire.
Disconnect the speedometer cable.
Lift the back part of the gearbox by
means of a jack.
Dismount :
- the three crossbar attachment screws
to the gearbox.
- the two crossbar attachment nuts to
the longitudinal girders.
Dismount the crossbar.
Dismount the clutch protection plate.
Dismount the two nuts attachment gear
box.
Take out the box drawing it backwards.
When dismounting the gearbox, pay
attention not to catch the clutch mechanism.
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