Renault F4R - Page 348

11A-174
TOP AND FRONT OF ENGINE
Cylinder head: Removal - Refitting
K4M
11A
a Fit:
-a new cylinder head gasket,
-the cylinder head equipped with new bolts on the
cylinder block.
a Check that the centring dowel is present on the cy-
linder block.
a Without tightening, fit the cylinder head bolts in or-
der.
a Pretighten in order and to torque the new cylinder
head bolts (initial torque) (20 N.m).
a Check that all new cylinder head bolts are tightened
to the correct torque 20 N.m.
a Angle tighten in order the new cylinder head bolts
(240˚ ±±
±±
6˚).
III - FINAL OPERATION
a
a Reprime the hydraulic tappets (hydraulic tappets
may empty after a long down time).
a To check if repriming is necessary, press the top of
the tappet (11) with your thumb.
a If the tappet piston sinks, dip the tappet in a contai-
ner filled with diesel.
a Press on the top of the tappet to expel air bubbles.
a Refit:
- the hydraulic thrust bearings,
- the valve rockers.
a Fit the engine wiring channel.
a Refit the bolts of the engine wiring channel.
a Connect the crankshaft position sensor connector.
a Clip on the wiring of the injector holder shim.
a Connect:
- the upstream oxygen sensor connector,
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 oil the new bolts. Be sure to oil bolts
being reused.
134578
Note:
Do not retighten the cylinder head bolts after
applying this procedure.
14499
Note:
Because this engine is equipped with hydraulic
tappets, there is no valve clearance adjustment.
K4M, and 848