steering RENAULT SCENIC 2000 J64 / 1.G Technical Note 3426A Workshop Manual

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Accessories belt tensioning
07
07-2
WITHOUT AIR
CONDITIONING
Accessories belt tensioning
ALTERNATOR AND POWER ASSISTED STEERING
Fitting tension (in Hertz): 188 ± 5
See Technical Note 3247A for the procedure for using
the tension measuring tool Mot. 1505.
A Crankshaft
B Alternator
C Power assisted steering pump
E Water pump
→ Tension checking point
98751R1

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Engine and transmission assembly
10
10-3
Engine and transmission assembly
SPECIAL TOOLING REQUIRED
Mot. 1040-01 Dummy sub-frame for removing
and refitting engine and
transmission assembly
Mot. 1159 Tool for maintaining engine on
subframe
Mot. 1202-01
Hose clip pliers
Mot. 1202-02
Mot. 1233-01 Threaded rods for lowering the
sub-frame
Mot. 1294-01 Tool for removing windscreen
wiper arms
Mot. 1448 Long nose pliers for hose clips
Mot. 1453 Engine support tool
REMOVAL
Put the vehicle on a two post lift.
During this operation, it is necessary to secure the
vehicle to the lift using a strap to prevent the vehicle
from losing balance.
See Technical Note 2988A for the procedure for fitting
the strap. TIGHTENING TORQUES (n daN.m)
Sub-frame front mounting bolts 6.2
Sub-frame rear mounting bolts 10.5
Mounting bolt for front right suspended
mounting cover to engine 6.2
Movement limiter mounting bolt 6.2
Mounting nut for rubber engine mounting
pad on front left-hand side member support 6.2
Shock absorber base bolts 18
Brake caliper mounting bolt 4
Steering shaft yoke mounting bolt 3
Sub-frame - side member tie rod bolts 3
Wheel bolts 9
14893S

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Engine and transmission assembly
10
10-4
Remove:
– the battery,
– the engine undertray.
Drain:
– the cooling circuit through the bottom hose of the
radiator,
– the gearbox and the engine (if necessary),
– the refrigerant circuit (if fitted) using filling equipment.
Remove:
– the front wheels along with the mudguard,
– the sub-frame and body tie rods,
– the track rod ends,
– the brake calipers (as well as the ABS sensors, if
fitted) and secure them to the suspension springs,
– the shock absorber base bolts,
– the heat shield (A) as well as the gearbox control,
– the clip (1) of the catalytic converter and secure this
to the body.
– the front bumper,
– the horn,
– the two mountings for power assisted steering
hoses on the right hand side of the sub-frame,
– the nut and the eccentric bolt of the steering shaft
yoke, after pushing back the guard.SPECIAL NOTES FOR VEHICLES FITTED WITH A
DRIVER'S AIRBAG
Remove (for the Scénic):
– the windscreen wiper arms using tool Elé. 1294-01,
– the front grilles,
16663R1
WARNING
In order to eliminate any risk of damaging the
rotary switch under the steering wheel, observe
the recommendations below:
!Before the steering column and the steering
rack are uncoupled, the steering wheel MUST
be immobilised with the wheels straight for the
duration of the operation using a "steering
wheel locking tool".
!If there is any doubt regarding the correct
alignment of the rotary switch, the steering
wheel must be removed so that the alignment
procedure described in the "AIRBAG" section
can be applied.
REMINDER: in this case, only qualified
personnel who have received training may carry
out the operation.
11020R

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Sump
10
10-8
Sump
SPECIAL TOOLING REQUIRED
Mot. 1233-01 Threaded rods for lowering the
sub-frame
REMOVAL
Put the vehicle on a two post lift.
Disconnect the battery.
Remove the engine undertray.
Drain the engine.
Remove:
– the front wheels as well as the right hand mudguard
and the lower clip of the left hand mudguard,
– the nut and the eccentric bolt of the steering shaft
yoke, after pushing back the guard.Remove:
– the lower ball joint mountings as well as the track rod
ends,
– the sub-frame and body tie rods,
– the gear control on the gearbox side,
– the horn,
– the bolt (1), and slacken engine tie-bar bolt (2),
without removing it,
– the bottom mountings of the bumper, TIGHTENING TORQUES (n daN.m)
Sub-frame front mounting bolts 6.2
Sub-frame rear mounting bolts 10.5
Sump bolts 1.5
Steering shaft yoke mounting bolt 3
Lower ball joint mounting bolt 6
Engine tie bar bolt 6.2
Sub-frame - side member tie rod bolts 3
Wheel bolts 9
WARNING
In order to eliminate any risk of damaging the
rotary switch under the steering wheel, observe
the recommendations below:
!Before the steering column and the steering
rack are uncoupled, the steering wheel MUST
be immobilised with the wheels straight for the
duration of the operation using a "steering
wheel locking tool".
!If there is any doubt regarding the correct
alignment of the rotary switch, the steering
wheel must be removed so that the alignment
procedure described in the "AIRBAG" section
can be applied.
REMINDER: in this case, only qualified
personnel who have received training may carry
out the operation.
17518R3

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Timing belt
11
11 - 5
Fit the reading head of Mot. 1505 and carry out the
measurement, then adjust the tension using the bolt
in contact with the belt until pretension value
T1 = 68 ± 3 Hertz is reached.
Tighten the tensioner.
Turn the crankshaft four times and reposition the
timing at top dead centre using the pin.
Remove pin Mot. 1054.
Apply a pretensioning torque using Mot. 1543 (fitted
with cover N˚ 3) by using a torque wrench adjusted to
a torque of 1.1 daN.m on the edge of the belt to be
measured.
Fit the reading head of Mot. 1505 and carry out the
measurement, then adjust the tension using the bolt
in contact with the belt until pretension value
T2 = 61 ± 5 Hertz is reached.
Tighten the tension wheel nut to a torque of 5 daN.m.
NOTE: it is vital that you tighten the tension wheel
nut to torque to avoid any slackening which may
cause damage to the engine.
Never refit a belt once removed, but replace it.
Replace the crankshaft pulley bolt and tighten it to a
torque of 2 daN.m plus an angle of 115˚ ± 15˚.
See section 07 "Accessories belt tension" for the
tension value for fitting the power assisted steering
belt.The belts on vehicles fitted with air conditioning are
tensioned by bringing the automatic tensioner plate to
a stop at bolt (B), without forcing it, using a 9.35 mm
square.
98837-1R1

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Alternator
16
16-2
REMOVAL
Put the vehicle on a 2 post lift.
Disconnect the battery as well as all electrical
connections on the alternator.
Separate the diesel filter from its mounting and
remove.
Unclip the power steering reservoir.
Release the air conditioning pipe at (A).
Remove:
– the wiring mounting support (1) and remove the unit,
– the front right wheel as well as the mudguard,
– the accessories belt.Special features of vehicles fitted with air
conditioning:
Before removing the accessories belt, check the
centreline of the automatic tensioner (see
section 07 "Accessories belt tension").
Loosen bolt (A), then bolt (B) until the shoulder is
exceeded while holding the automatic tensioner plate
using a 9.35 mm square, then relax the belt by moving
the ratchet in the direction of the arrow.
Remove:
– the bolts (A) and (B),
– the alternator mountings and remove the alternator. SPECIAL TOOLING REQUIRED
Mot. 1273 Tool for checking belt tension
16870R4
98837-1R4

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Radiator
19
19-4
Radiator
REMOVAL
Put the vehicle on a two post lift.
Disconnect the battery.
Remove the engine undertray.
Drain the cooling circuit through the lower radiator
hose.
Disconnect the wiring of the fan unit.
Unclip the power steering reservoir and remove it.
Remove:
– the upper cross member,
– the upper radiator mountings,
– the upper hoses on the radiator,
– the inlet manifold-air exchanger duct,
– the fan unit mountings on the radiator and remove
the fan,
– the radiator mountings on the condenser and remove
the radiator.REFITTING
Refitting is the reverse of removal.
Fill and bleed the cooling circuit (see section 19
"Filling and bleeding").
NOTE: ensure that the fins of the radiator or of the
condenser (if fitted) are not damaged when
removing-refitting, and protect them if necessary. SPECIAL TOOLING REQUIRED
Mot. 1202 -01
Hose clip pliers
Mot. 1202 -02
Mot. 1448 Long nose pliers for hose clips

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Water pump
19
19-5
Water pump
REMOVAL
Put the vehicle on a two post lift.
Disconnect the battery.
Remove the engine undertray.
Drain the cooling circuit through the lower radiator
hose.
Unclip the diesel filter and remove it.
Remove:
– the front right wheel along with the mudguard,
– the style cover,
– the accessories belt (see Section 07 "Accessories
belt tension"),
– the coolant pump and power assisted steering pump
pulleys,
– the water pump.Cleaning
It is very important not to scratch the gasket faces.
Use the Décapjoint product to dissolve any part of the
gasket which remains attached.
Wear gloves whilst carrying out the following
operation.
– Apply the product to the parts to be cleaned; wait
about ten minutes, then remove it using a wooden
spatula.
Do not allow this agent to drip on to the paintwork.
REFITTING
Refit:
– the water pump (fitted with a new gasket), tightening
the bolts to a torque of 1.7 daN.m,
– the accessories belt and tension it (see section 07
"Accessories belt tension").
Fill and bleed the cooling circuit, (see section 19
"Filling and Bleeding"). SPECIAL TOOLING REQUIRED
Mot. 1202 -01
Hose clip pliers
Mot. 1202 -02
Mot. 1448 Long nose pliers for hose clips
TIGHTENING TORQUES (in daN.m)
Water pump bolts 1.7

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Catalytic converter
19
19-7
1419 EXHAUST
Catalytic converter
Disconnect the battery and put the vehicle on a two
post lift.
Fit a flywheel immobiliser.
Loosen the catalytic converter/precatalytic converter
mountings.
Fit tool Tav. 1233-01 replacing the bolts of the sub-
frame one by one.Remove:
– the bolts of the sub-frame tie-rods,
– the nut and eccentric bolt of the steering shaft
yoke (1),
– the torque reaction arm.
Lower the sub-frame to a height of 40 mm at the front
and 60 mm at the rear.
Remove the exhaust mounting clip.
Remove the mounting nuts of the catalytic converter
and remove it, taking care not to damage the heat
shields.
REFITTING
Proceed in the reverse order from removal.
WARNING: all damaged heat shields must be
replaced to prevent the risk of fire. TIGHTENING TORQUES (in daN.m)
Engine tie bar bolt 6.2
Steering shaft yoke bolts 3
Engine sub-frame bolts
–front ∅ 10
–rear ∅ 12 6.2
10.5
Three point flange nuts 2
Sub-frame - side member tie rod bolts 3
15870R
97390-1R2