Renault F4R - Page 332

11A-158
TOP AND FRONT OF ENGINE
Cylinder head: Removal - Refitting
F4R
11A
1 - Cleaning the cylinder head joint face
a
a Clean the joint faces with SUPER CLEANING
AGENT FOR JOINT FACES (see Vehicle: Parts
and ingredients for the repairwork) (04B, Consu-
mables - Products):
-the cylinder head gasket face if being reused,
-the cylinder block gasket face.
a Use SURFACE CLEANER (see Vehicle: Parts
and ingredients for the repairwork) (04B, Consu-
mables - Products) to degrease:
- the cylinder head gasket face if being reused,
- the cylinder block gasket face.
2 - Checking the gasket face
a Check for gasket face deformation using a ruler and
a set of shims.
a The maximum deformation is 0.05 mm.
II - OPERATION FOR REFITTING PART
CONCERNED
a Bring the pistons to mid-stroke position to prevent
any risk of contact with the valves when tightening
the cylinder head.
IMPORTANT
Wear goggles with side protectors for this opera-
tion.
IMPORTANT
Wear leaktight gloves (Nitrile type) for this opera-
tion.
WARNING
Do not scrape the joint faces of the aluminium,
any damage caused to the joint face will result in
a risk of leaks.
WARNING
Do not allow this product to drip onto the pain-
twork.
Clean the cylinder head carefully to avoid any
foreign bodies entering the oil return and supply
pipes.
Failure to follow this advice could lead to the
blocking of the various oil inlet galleries, which
would quickly result in engine damage.
WARNING
To ensure proper sealing, the gasket surfaces
must be clean, dry and not greasy (avoid any fin-
ger marks).
WARNING
Protect the oilway so that foreign bodies do not
enter the oil pipes in the cylinder head.
Failure to follow this instruction could lead to the
blocking of the oilways, resulting in a rapid dete-
rioration of the camshaft.
WARNING
No regrinding of the cylinder head is permitted.
Note:
If the cylinder head is faulty:
-strip the cylinder head (see Stripping the cylin-
der head) (Technical Note 6027A, 10A, Engine
and cylinder block assembly),
-test the cylinder head in order to detect any pos-
sible cracks using the cylinder head test kit (see
Cylinder head testing equipment: Use) (Tech-
nical Note 6026A, 11A, Top and front of engine),
-rebuild the cylinder head (see Rebuilding the
cylinder head) (Technical Note 6027A, 10A,
Engine and cylinder block assembly).
WARNING
To ensure proper sealing, the gasket surfaces
must be clean, dry and not greasy (avoid any fin-
ger marks).
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.