Renault Laguna III Manual page 578

TOP AND FRONT OF ENGINE
Cylinder head: Removal - Refitting
K4M
II - REFITTING OPERATION FOR PART
CONCERNED
a Refit:
- the cylinder head,
- the new cylinder head bolts.
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.
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˚).
WARNING
Do not retighten the cylinder head mounting bolts
after applying this procedure.
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
103259
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,
11A-200
11A