2000 RENAULT SCENIC engine

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Sump
10
10-9
– the sub-frame mounting bolts, inserting the threaded
rods Mot. 1233-01 as you go.
Lower the sub-frame gradually using threaded rod
Mot. 1233-01 until dimensions X = 9 cm are reached.
Release the electrical harness from the sub-frame (left
hand side).
Remove the sump.
14264R1
1

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Sump
10
10-10
REFITTING
Put a drop of RHODORSEAL 5661 at (A) (on either
side of bearing N˚ 1), and at (B) (at the intersection of
the crankshaft closure panel and the cylinder block).
Refit the sump with a new gasket, pre-tightening it to a
torque of 0.8 daN.m, then tighten it finally to a torque
of 1.5 daN.m in the order recommended below.
Fill the engine with oil.
16246R
15195R

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Timing belt
11
11 - 1
111TOP AND FRONT OF ENGINE
Timing belt
SPECIAL TOOLING REQUIRED
Mot. 1054 TDC setting pin
Mot. 1387 Tool for checking the automatic
tensioner centreline
Mot. 1453 Engine support tool
Mot. 1505 Tool for measuring belt tension
Mot. 1543 Timing belt pretensioning torque
tool
Mot. 1294-01 Tool for removing windscreen
wiper arms
ESSENTIAL SPECIAL TOOLING
14 torx socket
REMOVAL
Put the vehicle on a 2 post lift.
Disconnect the battery.
Remove (for the SCENIC):
– the windscreen wiper arms,
– the front grilles,– the closure panel of the plenum chamber.
Remove (all types):
– the engine cover,
– the front right wheel as well as the mudguard,
– the accessories belt,
– the crankshaft accessories pulley. TIGHTENING TORQUES (in daN.m and/or ˚)
Tension roller nut 5
Crankshaft pulley bolt 2 + 115˚ ± 15˚
Suspended mounting limiter bolt 6.2
Suspended mounting cover bolt 6.2
Wheel bolts 9
11020R
11036R2

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Timing belt
11
11 - 2
Special features of vehicles fitted with air
conditioning:
Before removing the accessories belt, check the
centreline of the automatic tensioner (see
section 07 "Checking the accessories belt
tension").
Loosen bolt (A), then bolt (B) to past the shoulder
while holding the automatic tensioner plate using a
9.35 mm square, then relax the belt moving the
ratchet in the direction of the arrow.
Remove the Top Dead Centre pin plug.
Position the engine support, tool Mot. 1453 with the
retaining straps.Remove:
– the suspended mounting cover and its movement
limiter.
– the bolt (1), and slacken engine tie-bar bolt (2),
without removing it.
Adjusting the timing
Turn the crankshaft to align the camshaft and housing
timing marks while at the same time inserting the TDC
pin Mot. 1054 (begin to press one half tooth on the
pin before aligning the camshaft marks to prevent
it falling into a crankshaft balancing hole).
98837-1R4
13932R
17518R3
12518R2

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Timing belt
11
11 - 3
Remove the timing gear cases.
Release the tension wheel, then remove the timing
belt.
Check that the tension wheel and pulleys turn freely
without play.
NOTE: Slackening the tension wheel bolt by more
than one turn may cause it to come loose.
12518R

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Timing belt
11
11 - 4
REFITTING
Engine cold (ambient temperature).
Check that pin Mot. 1054 is in place.
Fit the timing belt by aligning the belt markings with
those of the camshaft, injection pump and crankshaft
sprockets.
Bring the tension wheel into contact with the belt by
tightening a bolt to the inner timing cover.
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.
Pretensioning torque application and belt
tension check point
Pretensioning torque tool contact point
See Technical Note 3247A for the procedure for using
the tension measuring tool Mot. 1505.
12519-1R
16563-1R2
16292R

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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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Cylinder head gasket
11
11 - 6
Cylinder head gasket
SPECIAL TOOLING REQUIRED
Mot. 251 -01 Dial gauge support
Mot. 252 -01 Pressure plate to measure
piston protrusion
Mot. 1054 TDC setting pin
Mot. 1159 Tool for holding engine on
subframe
Mot. 1202 -01
Hose clip pliers
Mot. 1202-02
Mot. 1387 Tool for checking the automatic
tensioner centreline
Mot. 1448 Long nose pliers for hose clips
Mot. 1453 Engine support
Mot. 1505 Tool for measuring belt tension
Mot. 1453 Timing belt pretensioning
torque tool
ESSENTIAL SPECIAL TOOLING
Cylinder head testing equipment
14 torx socket
Angular tightening wrench
55 torx socket
REMOVAL
Put the vehicle on a 2 post lift.
Disconnect the battery.
Remove the engine undertray.
Drain the cooling circuit through the lower radiator
hose.
Remove:
– the timing belt (see method described in section 11,
"Timing belt").
– the two PAS pipe mountings on the right hand sub-
frame. TIGHTENING TORQUES (in daN.m and/or ˚)
Tension roller nut 5
Crankshaft pulley bolt 2 + 115˚ ± 15˚
Suspended mounting cover bolt 6.2
Suspended mounting limiter bolt 6.2
Torque reaction arm 6.2
Wheel bolts 9