Dacia SuperNova (engine E7J). Service manual — part 11
ENGINE E7J-A-2/60
10
10 - 20
ENGINE AND LOWER ENGINE UNITS
D
ISMO UNTING
The following are to take off:
-the cylinder head cap;
-the intake and exhaust collectors;
-the cylinder head screws, except the
screw where the centring jack is; this one
is only loosened;
-the cylinder head is revolved round
the screw which was left in place;
-the cylinder head is taken off;
-the jacket-maintaining device -
MOT.484 - is mounted.
.
To be mounted:
-the rocker arm ramp:
-the oil-sealing of the cam-shaft;
-the flange of the cam-shaft;
-the pinion of the cam-shaft, which is
blocked with MOT 799 - 01;
-the cam-shaft;
-the stand of the thermostat;
-the sparking plugs;
-the springs of the valves;
-the valves;
-the oil-seals of the valves, by using the
MOT. 1335 pincers.
The cylinder head is cleaned of the fit-
ting which is left stuck to it.
It is very important not to get the po-
sitionin g surface of the fittings
scratched.
Use Decapjoint to remove the remains
of fittings that are left stuck.
The above product is applied on the
cleaning area; wait ca. 10 minutes, then
clean by means of a wooden spatula.
CYLINDER HEAD
MOT. 484
RECOVERY ENGINE
ENGINE E7J-A-2/60
10
10 - 21
ENGINE AND LOWER ENGINE UNITS
C
AUTION
!
Avoid introducing foreign bodies
into the oil grooves and tubes; you may
risk blocking up the holes of the rocker
arms and rapidly deteriorating the
cams and the gliding parts of the
rocker-arms.
The checking of the planeness of the
cylinder head is to be done with a ruler
and a set of thickness gauges
Maximum distortion allowed: 0.05 mm.
No rectification of the combustion head
is authorized.
R
E
-M
O UNTING
Oil all the parts.
Mount the valve oil-seal rings no. 2 by
means of a tubular-wrench of 11 size onto
the valve guides no. 3;
Mount in the following order:
-the washers no. 1 at the base of the
valve springs;
-the new valves no. 4.
-the springs no. 5 are identical for
both intake and exhaust;
-caps no. 6;
Compress springs no. 5, then mount the
semi-cones no. 7, which are identical for
both intake and exhaust.
CYLINDER HEAD
C
AUTION
!
They must have the same line-up
marking (8) as the old ones in order
to avoid the destruction of the valve -
stool set.
RECOVERY ENGINE
ENGINE E7J-A-2/60
10
10 - 22
ENGINE AND LOWER ENGINE UNITS
To mount:
-camshaft annular oil seal by
means of the MOT 1127-01 device;
-the thermostat stand.
For watertight sealing, use Loctite 518.
Girdle H must be 0.6mm up to 1 mm
thick; it is applied in keeping with the fol-
lowing schema:
-the pinion of the cam-shaft is fixed
with the MOT 799-01 device, then the
thread and the end of the screw are oiled
and the screw is tightened at 4.5 daNm.
CYLINDER HEAD
R
E
-M
O UNTING
Oil the cam-shaft.
Mount the cam-shaft and its flange.
Check the axial play, which has to be
within 0.06 mm and 0.15 mm; in case it
does not fit, check the flange or the cam-
shaft.
RECOVERY ENGINE
ENGINE E7J-A-2/60
10
10 - 23
ENGINE AND LOWER ENGINE UNITS
THE CYLINDER CRANKCASE
RECOVERY ENGINE
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