check oil DACIA SUPERNOVA 2004 Repair Manual

ENGINE E7J-A-2/6010
10 - 16
ENGINE AND LOWER ENGINE UNITS
The amount of oil to be introduced in the
engine is 2.7 liters - without replacing the oi l-
filter - or 2.9 liters, after re placing the filter.
The minimum oil pre ssure at 80
o is:
-in the idle mode 1 bar
-at 4000 rot/min 3 bar
The oil pump belongs to the “gearwheel”
type. Take off the cap and a lso the clapper of
the oil-pump.
To check:
* play A (mm): - min. 0.110
- max. 0.294 * play B (mm):
-min. 0.02
- max. 0.86.
CAUTION!
P rotect the distribution and alternator belt in order to avoid water-
or cleaning substance projection on them.
OIL PUMP
* TO BE ADJUSTED TO TH E GAUGE
CH ARASTERISTICS
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ENGINE E7J-A-2/6010
10 - 21
ENGINE AND LOWER ENGINE UNITS
CAU T ION!
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 an d the gliding parts of the
rocker-arms.
The checking of the planeness of the
cylinder he ad i s to be done with a rul er
and a set of t hickness gauges
Maximum distortion allowed: 0.05 mm.
No rectification of t he combustion he ad
is authori zed.
R
E-MOUNTING
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 fol lowing 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 m ount the
s emi-cones no. 7, which are identical for
both intake and exhaust.
CYLI NDER HEAD
CAU T ION!
They must have the same line-up
marking (8) as the old ones in order
to avoid the destruction of the valve -
stool set.
RE CO VERY ENGINE
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ENGINE E7J-A-2/6010
10 - 22
ENGINE AND LOWER ENGINE UNITS
To mount: -camshaft annular oil seal by
means of t he MOT 1127-01 device;
-the thermostat stand.
Fo r watertight sealing, use Loctite 518.
Gir dle H must be 0.6mm up t o 1 mm
thick; it is applied in keeping with the fol-
lowing schema:
-the pinion of the cam-shaft is fixed
w ith the MOT 799-01 device, then the
thread and the end of t he scre w are oiled
and the scre w is tightened at 4.5 daNm.
CYLINDER HEAD
R
E-MO UNT ING
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 fi t, check the flange or the cam-
shaft.
RE CO VERY ENGINE
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ENGINE E7J-A-2/6010
10 - 27
ENGINE AND LOWER ENGINE UNITS
The arrow marke d by the end of the
piston must be directed towards the
flywheel. The conne c ting rods d o not ha ve a
mounting dire ction, but the spurs of t he
s emi-bushes will be positioned on the same
side. For the assembly of t he piston and the
connecting rod, the following directions
will be observe d:
-jack B13 is set onto the stand and t he pis-
ton (with the arrow pointing upwards) is
fixed on the jack;
-the centri ng device and the axis of
the piston are oiled with motor oil; -the free sliding of the piston axis is
checked, as well as the positioning of t he
piston. When the base of the connecting rod
reaches the needed tempera ture (ca. 250
o),
the speedy mounting of the pisto n axis
should be done in the following manner: -the centring guide is introduc ed in
the piston; -the rod i s positioned in the piston;
-the piston axis is pressed up to the
end. It should be checked if the piston axis
remains retracted as to the outer diameter
of the piston for any position of the con-
necting rod in the piston. The “ rod-piston-ring” sets a re mounted
in the cylinder jackets by using the
mounting jack. The waterti ght - se a l i ng f i t t i ngs a re
mounted onto the cylinder j ackets.
THE CYLINDER CRANKCASE
The rings are mounted: -the oiling ring;
-the watertight-sealing ring (with the
“TOP” mark pointing upwards); -the compression ring (with the “TOP”
mark pointing upwards). The slits of the ri ngs being adjusted, they
shall never be altered; they are oiled and the
rings are positioned; the slit of t he oi ling ring
will be placed opposite a full part of its channel.
RE CO VERY ENGINE
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ENGINE E7J-A-2/6010
10 - 28
ENGINE AND LOWER ENGINE UNITS
The set i s mounted i n t he c rankcase in the
previously established order, and it is made
su r e that a 0.1 mm-long we d g e p a sse s
between the jackets
The jac kets are bl oc ked by m e a ns of
MOT.484 stand.
Mount connecting-rod bearings
(connecting rod bearings are identical). The cra nkpi ns a nd t he be ari ngs a re
oiled. The bearing caps are mounted. On no.
1 cap ( in the K area ) a t hi n l ayer of
R HODORSEAL 5661 is applied.
The screws are tightened at 2.5 daNm,
and then at an angle of 43o+/-6o.
The axial play of the cranksha ft i s
checked; it must be within: * 0.045 and 0.852 with wear ;
* 0.045 and 0.252 without wear.
MOT. 484
THE CYLINDER CRANKCASE
Take up the bearings of bearing on the housing
cylinders . Half-be aring l iners t hat are to be
m ounted on crankshaft bearing are provided with
o iling holes.
Beari ng liners a re ma tchning with the
crankshaft in two classes, as follows :
Marking on be aring linersMarking on crankshaft
Red
A
Blue B
Identification of matching classes on
cranksha ft i s done by m a rki ng on t he
counter-balance from number 5 bearing
liner. Crankshaft marking example :
AAB AB
RE CO VERY ENGINE
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ENGINE E7J-A-2/6010
10 - 29
ENGINE AND LOWER ENGINE UNITS
The axial bushes can have: 2.80 mm,
2.85 mm, 2.90 mm, 2.95 mm. The rod caps are m ounted and tightened
at 4.2 daNm.
To check:
-the horizontal play of the rods;
-the rotation of t he whole set.
To mount:
-the oi l-pump (c heck t he existence
of the c entri ng jacks); the screws are tight-
ened at 2.5 daNm;
-the pi nion and the c arrying c hain of
the oil-pump;
-the oil-seal ring on the front cap
(which is oi led), by means of t he MOT
550 device;
-the front cap of the crankshaft; the
w atertight-sealing is done with LOCTITE
518 (the girdl e must be 0.6 - 1mm thick);
-the oil-seal ri ng on no. 1 be aring -
by means of MOT 1129 - 01.
The bri m and the outer part of t he oil-
seal ring are oiled.
550
THE CYLINDER CRANKCASE
RE CO VERY ENGINE
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ENGINE E7J-A-2/6010
10 - 38
ENGINE AND LOWER ENGINE UNITS
DIS M O UNT ING
The oil in the engine is emptied.
The following are taken apart: - Motor-Propelling set frame;
- lower crankcase.
The screws for fixing the oil-pump on the crankcase are taken apart;
The carrying chain is taken off the oil-pump pinion;
The cap of the oil-pump is taken apart.
The play of the pinions in the oil-pump is checked.
R
E-MOUNT ING
The dismantling operations are done in the re verse order.
Motor-oil filling-up i s done.
The pressure of the oil at 80
o is checked:
idle mode: 1 bar
4000 rot/minute 3 bar Sc
rews for fixing oil-pum p 2.5
Sc rews for fixing oil-pum p cap 1 T
IG H TENING CO UP
LES (daNm)
OIL-PUMP ON THE CAR OIL-PUMP
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ENGINE E7J-A-2/6011
UPPER AND FRONT ENGINE UNITS
SPECIAL TOOL- AND-CHECK SETS
MOT.1202-01 -”CLIC” collar-pincers
MOT.1505 -Device for measuring belt tension
MOT.484 -Device for jacket maintaining -Wrench for angular tightening
-Pincers for elastic collar
TIG H TENING CO UPL E S (daNm )
S crew-nut of stretching runner/pulley 5
Screw of crankshaft pulley 2+68
o+/-6o
Screws of pendular suspension stand 6.2
Screw-nut of hydro-elastic buffer 3.7
Wheel Screws 7.5
Co mbustion-head Screws 2+97
o+/-2o
To take apart :
-the connector of the induction coil;
-the fue l hoses (t he going- and re -
turn circ uit); -the connectors of the injectors;
-the plugs of the sparks;
-the induction coil.
11 - 3
CYLINDER HEA D FITTING
D
IS M O UNT ING
The car is placed on a two-column lift -
ing stand; The battery i s disconnected;
The cooling circuit is emptied at the
jack situated at the lower pa rt of the radia-
tor; The distribution belt is taken apart (see
Chapter Distri bution Belt);
The following are taken apart: -air-filter;
-the c onnector of the c lapper-posi-
tion potentiometer (1); -the acceleration cable;
-the connector of the atmosphe ric
pressure sensor (2);
-the co nnector of the step-by-step
engine (3); -the connector of t he air temperature
sensor (4) on the intake collector;
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ENGINE E7J-A-2/6011
UPPER AND FRONT ENGINE UNITS
The hoses of the thermostat stand are
disconnected;
To take apart :
-the thermic screen;
-the exhaust collector;
-the alterna tor;
-the guide of the oil-l evel gauge;
To take apart :
-the combustion-head screws, ex-
cept the scre w corresponding to A po-
sition, which i s only loosened, then the
combustion-head is turned round the re-
maining screw; -the cylinder-head;
The ja cket -mainta ining MOT.484
device is mounted.
Check the plane of the c ylinder-head.
11 - 4
CYLINDER HEA D FITTING
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E7J-A-2/60 ENGINE17
IGNITION AND INJECTION
17 - 1
S
TATIC IG NIT IO N
PRE S E NT
AT IO N
The system is made up of:
- electronic control unit;
- double ignition coil;
- four sparking plugs;
- spark plugs.
DES CRIPT IO N OF FUNCT IO NING PRINCI PL E
Accordi ng to the data received from
various sensors, but essentially according
to the revolution ratio and the load of t he
engine, the electronic control uni t will de-
termine the ignition advance; it will also
identify the cylinders that are set at the
upper center point and, consequently, will
command the re spective coil. This c auses the spark at the level of the
two cylinders t hat are at the upper center
point, thus interrupting the m ass-setting of
the respective coil. T
HE CO IL
The system c ontains a doubl e c oil, con-
trolled by the calculator.
Coil no. 2 has an electric connector (1) with
four ways, whi ch si m ultaneousl y produc e
s parks at cylinders nos. 1 and 4, when it i s
commanded by pin no. 32 of the i njection cal-
culator, and on cylinders no. 2 and 3 when it
is commanded by pi n no. 1 of the same cal-
culator.
ELECTRIC CONNECTOR
Pins Function
AC ommands ignition at
cylinders nos. 1 and 4
BC ommands ignition at
cy linders nos. 2 and
CFuel supply (+DC)
inter - pin Rezisten
a
check între pini
A-B 1 W
A-C 0,5 W
B-C0,5 W
HT - HT 11 KW
IGNITION SYSTEM
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