Dacia Pick-Up 1304/1305/1307. Manual — part 50

MANUAL GEARBOX

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GLOSSARY

Operations to be performed.

Checking

A. NOISY GEAR SHIFTING

(AFTER CLUTCH CHECKING)

Dismount the gearbox.

Check the sinchro assembly of the velocity step :

- friction cones of the synchro pinion and gear;
- synchro hub,springs and wedges;
- coupling gears of the pinion and the sliding gear.

B. IMPOSSIBILITY OF GEAR COUPLING

( AFTER CLUTCH CHECKING )

Check gear linkage.

Adjust gear linkage.

Check the wear
of linkage gear.

Dismount the gearbox.

Check gear shifting and
coupling of the velocity steps.
Check synchro cones and
wedges.

Replace defective

parts.

Adjust gear linkage.

BAD

GOOD

GOOD

BAD

DIAGNOSTICS

MANUAL GEARBOX

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DIAGNOSTICS

C. SLIPS OUT OF VELOCITY STEPS OF GEAR BOX

D. BLOCKING IN A VEELOCITY STEP

Check the situation

of brackets of assembly.

Checking of the
wea and adjustment
of the linkage gear

Tighten brackets

attachment screws

or replace brackets.

Dismount the gearbox:
Check coupling teeth of the shifter
sleeves and pinions.
Check shifter fork contact surfaces with
shifter sleeves.
Check roller attachment system.
Replace defective parts.

Replace defective parts
of the gear linkage.
Adjust the gear linkage.

GOOD

GOOD

BAD

BAD

Check adjustment of

the gearbox control.

Check the state of the
parts composing the
gearbox control.

Adjust gearbox

control.

Dismount the gearbox and check:
- shifting and coupling mechanism;
- shift fork-axle assembly;
- elements of blocking system.
Replace defective parts.

Replace damaged parts of the
control system.
Adjust gear linkage.

GOOD

BAD

GOOD

BAD

MANUAL GEARBOX

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DIAGNOSTICS

E. UNUSUAL NOISES DURING DRIVING

Stop the vehicle.
Bring the gear shifting handle to
dead point.
Let the engine running.

The noise stops.

Check the state of
clutch stroke.

Check transmission

state.

Check the clutch
control system.
Replace defective parts.

Check the level of the
gearbox oil.
Fill to proper level if
needed.

Repair the

transmission.

The noise stops.

Check the wear of
wheels bearings.

Declutching, press the
clutch pedal to end of
stroke.

STOP

The noise stops.

Replace the
wheels bearings.

Dismount the gearbox and
set it in working state.

Search for noise source at
the engine assembly level.

YES

YES

YES

NO

NO

NO

GOOD

GOOD

GOOD

BAD

BAD

BAD

MANUAL GEARBOX

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CHARACTERISTICS

The 365, 50C, 51 C gearboxes are monoblock type , mechanical in steps (5 forward
steps and one reverse step).

The forward driving velocity steps are provided with Borg – Warner synchronizers.
The reverse driving step is not synchronized.

Capacity gearbox (liters) : C.V. 365. . . 2,3

C.V. 50C. . ...2,2
C.V. 51C. . ...2,3

Oil utility: SAE 80W/90; API GL 5

G

EARBOX

T

YPE

V

AR

.

C

O NICAL

G EARS

RATIO

S

PEEDO

METER

RATIO

R

ATIO

E

NG INE

C

LUTCH

50C

30
32
33
78

-

6X13

I. 42X11

II. 38X17

III. 34X23
IV. 29X28

V. 29X38

M.Î.40X13

3,81
2,23
1,47
1,03
0,76
3,07

51C

31
37
38
73
76

9X41

102; 106

106
106

102; 106

102; 106

106
106
102
106

Φ200 GR
Φ200 DBR
Φ200 DBR
Φ180 DBR;
Φ200 GR
Φ200 GR
Φ200 DBR
Φ200 DBR
Φ180 DBR
Φ200 GR

365

32

37

13

17

8X33

6X12

I. 42X11

II. 38X17

III. 34X23
IV. 29X28

V. 31X36

M.Î.40X13

I. 42X11

II. 38X17

III. 34X23
IV. 33X34

V. 31X36

M.Î.40X13

3,81
2,23
1,47
0,97
0,86
3,07

3,81
2,23
1,47
1,03
0,86
3,07

102
106

102
106

106

Φ180 DBR

Φ200 GR

Φ180 DBR
Φ200 GR

8X33

6X12

Φ180 DBR

Φ200 DBR

N

UMBER

OF

TEETHES