Renault Laguna III Manual page 580

TOP AND FRONT OF ENGINE
Cylinder head: Removal - Refitting
M9R
Special tooling required
Mot. 1431 Flywheel locking tool.
Equipment required
component support
Tightening torquesm
cylinder head bolts (ini-
tial torque)
cylinder head bolts (final
torque)
REMOVAL
I - REMOVAL PREPARATION OPERATION
a
WARNING
It is strictly forbidden to apply any pressure to the
engine oil sump. Damage to the sump will irrepa-
rably damage the engine by:
- blocking the strainer,
- raising the oil level above maximum, with a risk
of engine racing.
Note:
Consult the safety and cleanliness advice and
operation recommendations before carrying out
any repair (see Engine: Precautions for the
repair) .
a Remove:
- the engine - gearbox assembly (see 10A, Engine
and cylinder block assembly, Engine - gearbox
assembly: Removal - Refitting, page 10A-1) ,
- the EGR pipe at the EGR cooler inlet (see 14A, An-
tipollution, Exhaust gas recirculation rigid
pipe: Removal - Refitting, page 14A-62) .
a Position the engine on the component support
(see Engine support equipment: Use) .
a Drain the engine (see 10A, Engine and cylinder
block assembly, Engine oil: Draining - Refilling,
page 10A-100) .
a Remove:
5 N.m
30 N.m + 300˚
± ± ± ± 6˚
a Fit the flywheel locking tool (Mot. 1431) onto the cyl-
a Remove:
M9R, and 800 or 802 or 803 or 805 or 806 or 808
or 809 or 816 or 845 or 849
a Remove the exhaust gas pressure sensor (see 19B,
11A-202
- the accessories belt (see 11A, Top and front of
engine, Accessories belt: Removal - Refitting,
page 11A-13) ,
- the coolant pump (see 19A, Cooling, Coolant
pump: Removal - Refitting, page 19A-66) .
inder block.
- the crankshaft accessories pulley (see 11A, Top
and front of engine, Crankshaft accessories
pulley: Removal - Refitting, page 11A-33) ,
- the flywheel locking tool (Mot. 1431),
- the crankshaft seal on the timing side (see 10A,
Engine and cylinder block assembly, Crank-
shaft seal on timing end: Removal - Refitting,
page 10A-134) ,
- the timing chain (see 11A, Top and front of en-
gine, Timing chain: Removal - Refitting, page
11A-88) .
Exhaust, Exhaust gas pressure sensor: Removal
- Refitting, page 19B-93) .
11A
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