differential RENAULT MEGANE SCENIC 1995 Service Repair Manual

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Contents
Page
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23-8
23-8
23-9
23-15
23-20
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23-27
23-29 Section view
Use
Identification
Gear ratios
Gear change thresholds
Consumables
Parts to be systematically replaced
Oil
Oil change frequencies
Fault warning light
Draining
Filling - levels
Oil pressure
Hydraulic distributor
Automatic transmission (Removal -
Refitting)
Differential output seal
Wiring
Wiring diagram
Checking the "timing point" on the
converter AUTOMATIC TRANSMISSION
23
Transmission
CLUTCH
Identification
Section views
Exploded views
Consumables
Fault finding
Mechanism - Plate
Thrust pad - Fork20
20-1
20-3
20-3
20-4
20-5
20-13
20-14
Identification
Ratios
Capacity -Lubricants
Special notes
Consumables
Parts to be systematically replaced
Fault finding
Gearbox (Removal - Refitting)
5th gear on the vehicle
Differential output seal
Speedometer drive gear
MANUAL GEARBOX21
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29-2
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29-10
29-17
29-24 Consumables
Driveshafts
Front transverse driveshafts
Gaiter on wheel end
Gaiter on gearbox end
Bearing gaiter DRIVESHAFTS
29
Page

MANUAL GEARBOX
Consumables
21
TYPEPACKAGING
Loctite 518
LOCTITE FRENBLOC
(locking and sealing
resin)
24 ml syringe
100 g tube
24 cc bottle
PART NUMBER
77 01 404 452
77 01 394 071
COMPONENT
77 01 421 162Housing assembly faces
Threaded plugs and switches
Bearing plugs
Ends of roll pins on driveshafts
Primary and secondary shaft nuts
5th gear fixed gear and hub
Differential lock drive stud
Clutch shaft splines
Fork pivot
Thrust pad guide
Fork pads
MOLYKOTE BR277 01 421 1451 kg tinClutch
Parts to be systematically replaced
When they have been removed:
- lip seals,
- O rings
- thrust pad guide tubes,
- secondary shaft and differential nuts,
- speedo gear and its pin,
- speedo crown wheel,
- roll pins,
- rings under the gears. JB and JC
RHODORSEAL 5661
Eg : CAF 4/60 THIXO
21-5

MANUAL GEARBOX
Differential output seal
REMOVAL
Remove the engine undertray.
Drain the gearbox.
Put the front of the side being worked on on axle
stands.
Remove the wheel.
Extract the driveshaft pins using tool B.Vi. 31-01.Remove :
- the track rod end (tool T.Av. 476),
TIGHTENING TORQUES (in daN.m)
Brake caliper mounting bolt 2.7
Shock absorber base mounting bolts 17
Track rod end 3.5
Wheel bolts 9
CONSUMABLES
SPECIAL TOOLING REQUIRED
Loctite FRENBLOC :
Brake caliper mounting bolt
RHODORSEAL 5661 (Eg. CAF 4/60 THIXO) :
Ends of driveshaft pins
MOLYKOTE BR2 :
Right hand sunwheel splines
21
B.Vi.31-01 Set of pins
T.Av.476 Ball joint extractor
B.Vi.945 Mandrel for fitting differential seals
B.Vi.1058 Mandrel for fitting differential seals
(JB3 tapered bearings)
91755R
85965R
21-23

MANUAL GEARBOX
Differential output seal
- the two mounting bolts (A) of the brake assem-
bly.
Secure the caliper to the suspension spring to pre-
vent the pipe being damaged.
Slacken the lower bolt (3) from the base of the
shock absorber and remove the upper bolt (4).
Tilt the stub-axle carrier and release the driveshaft
(take care not to "damage" the gaiters during this
operation).
Remove the O-ring from the sunwheel.
Tap the base of the lip seal using a pin extractor
and a small hammer in order to extract it from its
housing .
When the seal is released, remove it using pliers
taking care not to damage the splines of the sun-
wheel.
21
REFITTING
1. JB1 - JB3 gearboxes
The seal is refitted using tool B.Vi. 945 comprising:
- a seal protector (A),
- a tool for positioning the seal (B).
METHOD
Put the oiled protector (A) onto the sunwheel and
position the oiled seal (C) with the tool (B).
90149R1
86031S
86095R
86122R
2.7 daN.m
21-24

MANUAL GEARBOX
Differential output seal
Continue in the same way but using tool B.Vi.
1058 and protector (A) of B.Vi. 945.
21
Fit new roll pins and seal the ends with
RHODORSEAL 5661 (Eg. CAF 4/60 THIXO).
Tighten the nuts and bolts to the recommended
torques.
Refit the brake caliper and coat the bolts with
Loctite FRENBLOC.
Fill the gearbox with oil.
Fit the O-ring to the sunwheel and coat the splines
with grease N° 20.
Position the driveshaft with respect to the sun-
wheel.
Pivot the stub-axle carrier, engaging the drives-
haft into the sunwheel using pin B.Vi. 31-01 to
align the holes.
92111R
74937-3S
21-25

MANUAL GEARBOX
Speedometer drive gear
REPLACEMENT
1st case :
Only the speedo gear or the pin is damaged.
REMOVAL
The gearbox does not have to be completely dis-
mantled.
Release the left hand driveshaft.
Remove the sunwheel spider.
Rotate the differential by hand so that the speedo
gear is accessible.
Unclip the pin by pulling it vertically using a pair
of long nose pliers.
Using these pliers, remove the gear from its hou-
sing.
REFITTING
Refit a new speedo gear using a pair of flat nose
pliers.
The gear and its pin should be refitted by hand.
The pin must be correctly positioned with respect
to the key lugs on the gear due to the elasticity of
the lips of the pin.
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Ensure that it is correctly clipped in.
Refit the sunwheel spider.
2nd case :
The speedo gear and crown wheel are damaged
The gearbox has to be removed and the final drive
has to be dismantled.
88577S
86053S
Correct Incorrect
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AUTOMATIC TRANSMISSION
Differential output seal
23
REMOVAL
Using a screwdriver, remove the protective shield
(A).
1) REPLACING A LEFT OR RIGHT HAND LIP SEAL
SPECIAL TOOLING REQUIRED
B. Vi. 1322Tool for fitting differential
output seals
97725R
The shield is fitted tight.Using a screwdriver, remove the seal taking care
not to damage the differential bolt as well as the
output shaft.
97746S
PRG23.4
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AUTOMATIC TRANSMISSION
Differential output seal
23
REFITTING
The lip seal (oiled) is positioned using toolB.Vi.
1322 (this determines the correct position of the
seal).
SPECIAL TOOLING REQUIRED
B. Vi. 1323Tool for fitting differential
output seals
97746-1S
Refit the protective heat shield in the opposite or-
der to removal using a 45 mm diameter socket.
95791-5R
2)REPLACING THE O-RING
The principle is the same on both sides, but only
one side must be removed at a time.
Special notes:
The is no flange on the driveshaft outputs, but ins-
tead a simple splined end piece protected by a
shield.
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AUTOMATIC TRANSMISSION
Differential output seal
23
REFITTING
Refit the nut, turning the same number of turns as
when it was removed.
Align the marks made on the nut and the sump.
Replace the bolt (D) and the locking plate (E).
Refit the shield after having replaced the lip seal if
necessary (see paragraph 1).
Fill the final drive with oil.
95791-2R
REMOVAL
Drain the final drive and remove the shield, as ex-
plained in paragraph 1.
Locate the position of the nut (F) with respect to
the sump by putting a mark on one of the teeth
and on the face of the sump.
Remove bolt (D) and the locking plate (E) from the
nut using tool B.Vi. 1323, remove the nut, coun-
ting the number of turns it takes.Replace the O-ring on the nut, cleaning the seat
properly and lubricating the new seal with final
drive oil.
95791-6R
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