Renault Laguna III, Manual

Page: 578 / 3699

11A
-
200
TOP AND FRONT OF ENGINE
Cylinder head: Removal - Refitting
K4M
11A
II - REFITTING OPERATION FOR PART
CONCERNED
a
Refit:
- the cylinder head,
- the new cylinder head bolts.
a
Screw in the cylinder head bolts in order, without
tightening them.
a
Pretighten to torque and in order the cylinder head
bolts (initial torque) (20 N.m) .
a
Check that all of the new cylinder head bolts are
tightened to the correct torque
(20 N.m) .
a
Angle tighten in order the cylinder head bolts (240˚
± ±
± ± 6˚) .
III - FINAL OPERATION.
a
Connect:
- the cooling radiator top hose to the water chamber,
- the heater matrix inlet hose to the water chamber,
- the coolant temperature sensor connector,
a
Using the (Mot. 1448) or (Mot. 1202-01) or (Mot.
1202-02) fit:
- the cooling radiator top hose clip on the water
chamber,
- the heater matrix inlet hose clip on the water cham-
ber.
a
Refit the exhaust manifold stay.
a
Connect the upstream oxygen sensor connector.
a
Tighten to torque:
- the exhaust manifold stay bolt (44 N.m) ,
- the exhaust manifold stay nut44 N (.m) .
a
Refit a new ring between the exhaust manifold and
the catalytic converter.
a
Torque tighten the exhaust bracket bolts (22 N.m) .
a
Refit:
- the dipstick guide,
- the dipstick,
- the camshafts (see 11A , Top and front of engine ,
Camshaft: Removal - Refitting , page 11A-245 ) ,
- the rocker cover (see 11A , Top and front of en-
gine , Rocker cover: Removal - Refitting , page
11A-139 ) ,
- every camshaft seal (see 11A , Top and front of
engine , Camshaft seal, timing end: Removal -
Refitting , page 11A-287 ) ,
- the camshaft dephaser (see 11A , Top and front of
engine , Camshaft dephaser: Removal - Refit-
ting , page 11A-275 ) ,
- the timing belt (see 11A , Top and front of engine ,
Timing belt: Removal - Refitting , page 11A-50 ) ,
- the right-hand suspended engine mounting (see
19D , Engine mounting , Right-hand suspended
engine mounting: Removal - Refitting , page
19D-51 ) ,
- the accessories belt (see 11A , Top and front of
engine , Accessories belt: Removal - Refitting ,
page 11A-13 ) ,
- the engine undertray,
103259
WARNING
In order to ensure that the bolts are correctly
tightened, use a syringe to remove any oil which
may be in the cylinder head mounting holes.
WARNING
Do not lubricate the new bolts. Be sure to oil
bolts being reused.
WARNING
Do not retighten the cylinder head mounting bolts
after applying this procedure.