1995 RENAULT MEGANE SCENIC engine

CLUTCH
Fault finding
20
The gearbox clunks in 1st or
reverse gear only when
cold:
- vehicle stationary,
- engine running.
Check the grade
of the
gearbox oil
INCORRECT
Change the oilCheck the internal
parts of the gearbox
CORRECT
20-7

CORRECT
CLUTCH
Fault finding
20
Juddering
INCORREC
Check the travel of
the fork(1)
Check the clearance
Check the condition
of the gearbox
mountings
Change the
mountings, check
the engine
mountings are
tight and check
that the gearbox is
properly mounted
on the engine
CORRECT
Change the clutch
plate and repair
the leak
INCORRECT
(*)Depending on version
(1)See "Removal - Refitting" chapter(2)Grommet positioned on the end of the clutch
cable on the gearbox side.
CORRECTINCORRECT
Check the
condition of the
clutch
CORRECT
INCORRECCORRECT
CORRECTINCORRECT
Check the condition
of the fork
CORRECT
Check the
condition of the
pins and support
points
INCORRECT
Replace the
faulty partsCheck the condition
of the pedal and
assistance spring (*)
Replace the
faulty parts
Replace the
fork
Check the
automatic
clearance device
INCORRECT
Repair the
automatic
adjustment
device
Check the condition
of the cable and the
anti-noise rubber
washer (2)
20-10

MANUAL GEARBOX
Identification
B64 vehicles are fitted with JB or JC type gearboxes
MR "B.V. JB" and MR "B.V. JC" cover the complete repair process for these components.
NEW IDENTIFICATION PLATE
At A : the gearbox type
At B : the gearbox suffix
At C : the fabrication number
At D : the factory of manufacture
At E : a notch when the gearbox is assembled with
an E engine
At F : the letter preceding fabrication numbers
greater than 999999
21
X000 JB0
B A
E DC
X0 0000
87227G
F
21-1

MANUAL GEARBOX
Diagnostic
21
Abnormal noises when driving
• Stop the vehicle
• Engine running
• Gear lever in neutral
Check
driveshafts
Check
wheel
bearingsReplace the
driveshafts
Replace the
wheel bearings
CorrectIncorrect
CorrectIncorrect
The noise
stops
Yes
Check the thrust
pad, cable and
plate
Replace the faulty
parts
The noise
stops
Look for the
noise in the
engine
Amount
of clearance
Check the toothed
sector of the clutch
pedal and the
cable
Oil level
YesNo
CorrectIncorrect
No
Look for the noise in
the engine
Remove the gearbox
and repair it
The noise
stops
Yes
No
Clutch fully depressed
Remove the
gearbox and
repair it
21-7

MANUAL GEARBOX
Diagnostic
21
Gears jump out
Check
engine and
gearbox
mountings
Adjust the
linkageTighten the bolts or
replace the
mountings
Remove the gearbox
Check the locking
system of the hubs
and sliding gears
IncorrectCorrect
CorrectIncorrect
Replace the faulty
parts
Adjust the linkage
Gear sticking
Adjust the
control
Check the
parts forming
the control
Remove the gearbox
and check:
- the locking balls
- the forks
- the locking plungers
CorrectIncorrect
Adjust the gearbox
control
IncorrectCorrect
Replace the faulty
parts
Adjust the linkage
21-8

MANUAL GEARBOX
Gearbox (Removal - Refitting)
REMOVAL
- Put the vehicle on a two post lift.
- Disconnect the battery.
- Remove the front wheels.
- Remove the engine undertray.
- Drain the gearbox.
LEFT HAND SIDE OF THE VEHICLE:
Remove:
- the wheel arch (protection),
- the track rod end using tool T.Av. 476.
SPECIAL TOOLING REQUIRED
B.Vi. 31-01 Set of pins
T.Av. 476 Ball joint extractor
21
Bolts of the rear linkage of the suspended
engine mountings (tie-bar) 6
Bolts for securing battery mounting on body 2
Driveshaft gaiter mounting bolt 2.4
Gearbox mounting bolt 3.5
Gearbox control rod bolt 2.8
Shock absorber base bolt 17
Track rod end nut 3.5
Stub-axle key nut 6
Support mounting bolts 4.5
Wheel bolts 9
Caliper guide bolts 2.7
TIGHTENING TORQUES (in daN.m)
All engines
85965R
Remove:
- the two mounting bolts from the caliper by se-
curing the caliper to the suspension spring to
avoid stretching the pipe,
- the three mounting bolts of the driveshaft gai-
ter.
92122R2
21-9

MANUAL GEARBOX
Gearbox (Removal - Refitting)
- the stub-axle carrier driveshaft assembly by re-
leasing the lower ball joint,
- the sub-frame-side member tie rod (A).
21
All engines
RIGHT HAND SIDE OF THE VEHICLE:
Remove the driveshaft pins using toolB.Vi. 31-01
90130R2
Remove :
- the bolt (1),
- the 2 mounting bolts (2) from the base of the
shock absorber,
Check that the driveshaft rollers cannot be remo-
ved by hand. If this is the case, when refitting,
check that the needles have not fallen into the
gearbox.Remove the bolts from the base of the shock ab-
sorber.
98712R1
Tilt the stub-axle carrier and release the drives-
haft.
Remove the stub-axle carrier driveshaft assembly
by releasing the lower ball joint.
Remove and secure the brake caliper.
Remove the mudguard.
Remove the sub-frame body tie rod.99070R1
91755-1R2
21-10

MANUAL GEARBOX
Gearbox (Removal - Refitting)
21
E and K
engines
REFITTING
Coat the sides of the guide tube and the fork pads
with
MOLYKOTE BR2 grease.
Position the fork on the notches of the clutch
thrust pad.
Connect the engine to the gearbox.
Check that the rings (C) for centring the engine-
gearbox are present and are in the correct posi-
tion.
86308R2
Special notes for E7J - K7M engines
Remove the engine/gearbox assembly from above
(see Workshop Repair Manual Chap. 10).
Once the engine and transmission assembly is sui-
tably clear, remove the bolts from around the
gearbox.
Release the gearbox from the engine by removing
the pin (C).
86415R2
Refit:
- the heat shield,
- the exhaust downpipe.
Refit the other components by carrying out the re-
moval operations in reverse (see Workshop Repair
Manual Chapter 10).
21-11