1995 RENAULT MEGANE SCENIC alternator

TOP AND FRONT OF ENGINE
Timing belt
11F8Q ENGINE
99309R2
Remove:
- the suspended mounting cover and the move-
ment limiter,- the lower timing casing (1),
- the alternator drive belt (see section 16
"Removing the alternator"),
Turn the crankshaft to position the camshaft ti-
ming reference mark in the timing window.
99176G
89120-2S
11-8

TOP AND FRONT OF ENGINE
Cylinder head gasket
11
Drain the cooling circuit via the lower radiator
hose and the cylinder block via the drain bolt.
92073R1
Remove:
- the thermostat hose,
- the connectors for the sensors,
98711R3
- hoses 4,5,6, and 7,
- the upper alternator mounting,
98745R1
- the exhaust heat shield,
- the exhaust downpipe,
- the cylinder head bolts except bolt (F) which
should be slackened off only (use a 12 star
socket, for example
ST X 12 FACOM ), then
pivot the cylinder head around this bolt,
92106R
E7J - K7M ENGINE
11-13

TOP AND FRONT OF ENGINE
Cylinder head gasket
11F8Q ENGINE
REMOVAL
Put the vehicle on a 2 post lift.
Disconnect the battery.
Remove the engine undertray.
Drain the cooling circuit via the lower radiator
hose (radiator end).
SPECIAL TOOLING REQUIRED
TIGHTENING TORQUES (in daN.m)
Wheel bolt 9
Crankshaft pulley bolt 12
Suspended engine mounting cover bolt 6
Suspended engine mounting limiter bolt 4
Tensioner nut 5
EQUIPMENT REQUIRED
Star socket ST X 14 FACOM for example
Star socket EX 255 FACOM for example
Engine support tool DESVIL M300 for example
99174R
Mot. 251-01 Dial gauge mounting
Mot. 252-01 Pressure plate for measuring cylinder liner protrusion
Mot. 1311-06 Tool for removing fuel pipe
Mot. 591-02 Index
Mot. 591-04 Angular wrench for tightening the cylinder head
Mot. 1054
TDC pin
Mot. 1159 Tool for retaining the engine on the sub-frame
Mot. 1202 Hose clip pliers
Mot. 1273 Tool for checking belt tension
Mot. 1281-01 Oil filter wrench
Mot. 1289-03 Fork for centring suspended engine mounting limiter
Remove:
- the timing belt (see section 11 - timing belt),
- bolts (A) mounting the tensioner, together
with bolt (B) for the alternator drive belt ten-
sion strut mounting,
11-22

TOP AND FRONT OF ENGINE
Cylinder head gasket
11F8Q ENGINE
- the exhaust flange at the manifold outlet,
- the air filter,
- the earth strap,
- the fuel return union on the injection pump,
together with the mounting bracket on the
manifold,
- the mounting bolts for the inner timing cover
on the engine block.
95658-4R
Remove the oil filter.
Release the wiring from the alternator and move
the wiring to one side. Fit tool Mot. 1159 under the oil pump.
Note : cut the base of tool Mot. 1159 to 30 mm.
99023R2
99024R2
11-23

CHECKING
After 15 minutes warming up with a voltage of13.5 volts.
STARTING - CHARGING
Alternator
16
IDENTIFICATION
ENGINE ALTERNATOR CURRENT
F3R
F8QValéo A 11 VI - 59
Valéo A 13 VI 4575 A
110 A
F3R CA
F8Q CAValéo A 13 VI - 57 110 A
K7MValéo A 11 VI - 61
Valéo A 13 VI 10575 A
110 A
E7J
Valéo A 13 VI 104
Valéo A 13 VI 10580 A
110 A
engine rpm 75 apms 80 apms 110 apms
1000
2000
3000
400046
68
71
7254
75
80
8257
94
105
108
16-1

STARTING - CHARGING
Alternator
16
OPERATION - FAULT FINDING
These vehicles are fitted with alternators with in-
ternal ventilation, an integral regulator and a
warning light on the instrument panel which ope-
rates as follows :
- when the ignition is turned on, the warning
light illuminates,
- when the engine starts, the warning light ex-
tinguishes,
- if the warning light illuminates again when
the engine is running, there is a "charging"
fault.
LOOKING FOR FAULTS
The warning light does not illuminate when the
ignition is turned on.
Check:
- the electrical connections are correct,
- the bulb is not blown (to do this, earth the cir-
cuit; the bulb should illuminate).
The warning light illuminates when the engine is
running
There is a charging fault which could be due to:
- the alternator drive belt being broken or the
charging cable being cut,
- internal damage to the alternator (rotor, sta-
tor, diodes or brushes),
- regulator fault,
- an excess voltage.The customer complains of a charging fault and
the warning light operates correctly.
If the regulated voltage is less than 13.5 V, check
the alternator. The fault could be caused by:
- a destroyed diode,
- a cut phase,
- track contamination or wear.
Checking the voltage
Connect a voltmeter across the battery terminals
and read the battery voltage.
Start the engine and increase the engine speed
until the voltmeter needle stabilises at the
regulated voltage.
This voltage should be between 13.5 V and 14.8 V.
Connect as many consumers as possible, the
regulated voltage should remains between 13.5 V
and 14.8 V.
IMPORTANT: if arc welding is carried out on the
vehicle, the battery and the regulator must be
disconnected.
16-2

STARTING - CHARGING
Alternator
16
- the alternator drive belt, together with bolt (3)
and shaft (4), removing through opening (5),
REMOVAL
With the vehicle on a 2 post lift, disconnect:
- the battery,
- the alternator electrical connections.
Remove:
- the power assisted steering belt by slackening
the three bolts (1) and the nuts (2) for the ten-
sioner, E 7 J and
K 7 M engines
SPECIAL TOOLING REQUIRED
Mot. 1273 Tool for testing belt tension
T. Av. 476 Ball joint extractor
Upper shock absorber mounting bolt 3
Track rod end nut 3.5
Wheel bolts 9
TIGHTENING TORQUES (in daN.m)
98747R198745R2
- the front right hand wheel,
- the track rod end (6) using tool T. Av. 476,
98712R
16-3

STARTING - CHARGING
Alternator
16
- the two upper shock absorber mounting bolts
(7).
98709R1
Press downwards on the front axle assembly to
make removing the alternator easier through the
front right hand wheel arch.
REMOVAL
Refitting is the reverse of removal.
Special notes:
- do not refit the old drive belt, renew it,
- refer to section 07 for tension values. E 7 J and
K 7 M engines
16-4