belt DACIA SUPERNOVA 2004 Repair Manual

01 SPECIFICATIONSEngine – Clutch - Gearbox............................. 01-1
Vehicle identification.. ................................. 01-2
02 LIFTING Mobile jack - Protection route;....................... 02-1
Elevator positioned under the carriage body... 02-3
03 TOWING All types.......................................................... 03-1
04 LUBRICANTS CONSUMABLES Condition....................................................... 04-1
05 DRAINING – FILLING Engine............................................................ 05-1
Gearbox.......................................................... 05-2
07 VALUES AND SETTINGS Dimensions..................................................... 07-1
Capaci ty - Qualities........................................ 07-2
Driving belts tightening and accesorie s.......... 07-3
Distribution belt tension................................. 07-4
Cy linder head tightening................................ 07-5
Wheeles and tyres........................................... 07-6
Br akes............................................................. 07-7
Dimensions under carriage body.................... 07-8
C hecking values of the fr ont axle angles........ 07-9
C hecking values of the rear axle angle s......... 07-10
10 ENGINE AND LOWER ENGINE UNITS Ingredients...................................................... 10-1
Motor-propelling group.................................. 10-2
Separation - Dismantling................................ 10-7
Characteristics................................................ 10-10
Rec overy engine.............................................10-17
Lowervcrankase..............................................10-37
Oil pump........................................................ 10-38
Tightening moments....................................... 10-39
11 UPPER AND FRONT ENGINE UNITS Distribution belt............................................. 11-1
Cylinder head fi tting....................................... 11-3
12 FUEL MIXTURE Characteristics................................................ 12-1
Cl apper body .................................................. 12-4
Intake cole ctor................................................ 12-5
Exhaust collector............................................ 12-6
13 PUMP SUPPLY
Br eaking fuel supply ..................................... 13-1
Injection pump............................................... 13-2
Petrol filter.................................................... 13-3
P upm flow...................................................... 13-4
Supply pressure.............................................. 13-5
14 ANTI-POLLUTION Petrol vapours-aspiration ............................. 14-1
16 STARTING AND CHARGING Alternator....................................................... 16-1
Starter............................................................. 16–7
17 IGNITION AND INJECTION Ignition system.............................................. 17-1
Sparking plugs.............................................. 17-2
Peculi arities.................................. ................ 17-3
Placi ng of elements........................................ 17-4
Idling regime adjustment............................... 17-9
Adjustment of the fuel mixture enriching...... 17-11
Enriching adaptive correction....................... 17-12
Diagnosing-Introduction... ............................ 17-15 Diagnosing-Interpreting the defects.............. 17-17
Diagnosing-Conformity test........................... 17-49
Diagnosing-Interpreting the states................. 17-55
Diagnosing-breakdown localization
algorithm....................................................... 17–66
19 COOLING - EXHAUST - FUEL TANK Characteristics............................................... 19-1
Filli ng and draining ...................................... 19-2
C ontrol.......................................................... 19-3
The schema.................................................... 19-4
Ra diator dismounting and remounting.......... 19-5
C ooling fan replacement
for vehicles with air conditioning................. 19-6
C ooling fan diagnostic
for vehicles with air conditioning................. 19-7
Re sist ance cooling fan replacement
for vehicles with air conditioning................. 19-9
C ooling fan replacement
for vehicles without air conditioning............ 19-10
C ooling fan diagnostic
for vehicles with air conditioning.................. 19-11
Water pump .................................................. 19-12
Dismounting - remounting exhaust................ 19-14
Emptyng of tank............................................ 19-16
Tank fuel description..................................... 19-17
Tank fuel....................................................... 19-20
Electric petr ol pump...................................... 19-21
20 CLUTCH Identification................................................. 20-1
Diagnostic.. ................................................... 20-3
Clut ch disc mechanism.................................. 20-9
Moteur et peripherics
General poinds vehicle0
1
vnx.su

VALUES AND SETTINGS
07DRI VING BELTS TIGHTENING AND ACCESSORIES
Alternator belt
Compressor belt
A - cra nkshaft
B - a lternator
C - compressor
D - tightener
Control point of tension
A lternator belt tension: 263 Hz +/- 10 %
Compressor belt tension: 222 Hz +/- 10 %
07 - 3
SPECIAL TOOLS
MOT 1505 - TENSION CHECKING DEVICE
B
A
A C
D
vnx.su

VALUES AND SETTINGS
07DISTRIBUTION BELT TENSION
DISTRIBUTION BELT TENSIONING
Cold engine (ambient temperature).
Mount the new belt, the distribution being at setting point (P.M.S.).
Place the tensioning cam and tighten t he distri bution belt by means of t he MOT 1135-01
device.
Block the tensionin g cam.
P lace the reading head of the MOT 1505 device in the measuring area ( at a distance of 5…
10 mm from the belt); Any of the two captors may be used on the understanding that not both of
them are simultaneou sly in front of the belt.
Make the distribution belt vibrating ( the measurement is validated by a ”bip” of the device).
Tighten the belt, by acting upon the tensioning cam, until obtaining a value within the range
210…275 Hz.
Block the tightener and tighten its nut at the required moment of 3 daNm.
Rotate 5 and a half turns the crankshaft.
Unscrew the cam nut.
Tighten again the belt until obtaining a value between 145 and 185 Hz.
Obligatory tighten the tensioning cam nut at 5 daNm.
NOTE
If the value is higher than 275 Hz, the distribution belt is to be replaced with a new one.
07 - 4
NECESSARY SPECIAL TOOLS
MO T 1505 - belt tension checking device
MOT 1135 - 01 distribution belt tensioning device
vnx.su

ENGINE E7J-A-2/6010
10 - 8
ENGINE AND LOWER ENGINE UNITS
The following are taken off:-the alterna tor and its belt;
-the induction coil and the plugs of the
sparks; -the pipe of the oil-level indicator;
-the mechanism of the clutch disc.
The electri c connectors are taken off and
the engine cabling is dismantled. Then the following are taken off:-the clapper body;
-the injection ramp;
-the intake collector;
-the thermic scre en and t he exhaust c ol-
lector; -the water intake pipe;
-the thermostat stand;
P entru automobilele echipate cu instala
ie
de aer c onndiºionat se demomonteazã: - rola de întindere, prin desfacerea
ºu ruburilor F ºi G;
- cureaua compre sorului;
- conectorul electric al compre sorului;
- compresorul;
- suport ul c ompre sorul ui ºi suport ul
interm ediar. ENGINE DISMMOUNTING
SE
PARA TION - DISMANTLING
vnx.su

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
vnx.su

ENGINE E7J-A-2/6010
10 - 18
ENGINE AND LOWER ENGINE UNITS
DIS M OUNT ING
The oil and the cooling fluid are empties.
To be taken off:
-the electric connections;
-the alterna tor and its belt;
-the pulley of the crankshaft (in order to do that, t he flywheel is bl ocked with the
MOT 582 device)
-the protection cap of t he distri bution belt RE
CO VERY ENGINE
CYLINDER HEAD
vnx.su

ENGINE E7J-A-2/6010
10 - 19
ENGINE AND LOWER ENGINE UNITS
The e ngine i s brought to t he t uning point, by aligning t he line-up mark on the crankshaft
pinion L with the fi xed marks M (the L mark i s held with the cams upwards). The screw-nut of t he stretching runne r is undone, then the belt is taken off.
(1) The stretching dire ction of the stre tcher.
RE CO VERY ENGINE
vnx.su

ENGINE E7J-A-2/6010
10 - 33
ENGINE AND LOWER ENGINE UNITS
On the back of the be lt there i s an arrow
indicating the direction of rotation, and two
tuning marks; -the L line-up marks on the crank-
shaf t pi nion are aligned with the fixed mark M;
(the mark on the
pinion of t he cam-shaft in
down)
CAU T ION!
The pinion of the cam-shaft
ca n have five line-up marks: it is only
th e rectangular-shaped mark on the
face of a cog that represents the Up-
per Ce ntre Point, all the others serv-
ing to adju st the rocker arms.
-the marks on the belt are aligned
w ith those on the pi nions, observing t he
direction of mounting and be ginning from
the pinion of the crankshaft;
-the captor of the MOT 1505 appa-
ratus is placed (held in the position indi-
cated in the schema) at 5-10 mm to t he
belt. Any of the two captors can be used on
condition the t wo of them should not be
placed simultaneously in front of the belt.
The distribution belt is set in vibration (the
m easurement is validated by a beep of the apparatus).
-the belt is stretched by opera ting t he
str etching runner/pulley, until a value within
210 and 275 Hz is obtained;
-the stretching device is blocked, and its
screw-nut is tightened at 3 daNm;
-the crankshaft is wound 5 1/2 rotations
(no. 2 cylinder in the position of rocker-arm
adjustment); -the screw-nut of t he runner/ pulley is
stretched until a value between 145 and 185
Hz is obtained.
CAU T ION!
If the value of 275 Hz is ex-
ceeded, the belt can no longer be used,
and it ha s to be changed.
-the 0 screw-nut of the runner/pulley is tight-
ened at 5 daNm.
If not, this may get dismounted, ri sking the
engine damaging.
G
ENERAL DIREC TIONS
The stretching of the belt should only be done
for th e co ld engine mode (i.e. ambient temperature);
-a belt which has been taken off must not be re-
mounted - it will have to be replaced by a new one.
DISTRIBUTION
RECO VERY ENGINE
vnx.su

ENGINE E7J-A-2/6010
10 - 36
ENGINE AND LOWER ENGINE UNITS
After the tu ning of the distri bution and the adjustment of the rocker-arms, the
following are further re-m ounted: -the cylinder-head cap, fitted with a new fitting; the screws are tightened at 1 daNm;
-the water-intake conduit and t he oil-level gauge guide (with new watert ight-
sealing ri ngs); -the cap of the distribution;
-the pulley of the crankshaft; the screw is first tightened at 2 daNm, then at 68
o+/-6o.
C
AUTION!
If the screw is not duly tightened, it c an come undone, which c an result in t he oi l-
pump not being operated and the distribution being disrupted, thus causing serious
damage to the engine.
-the intake and exhaust collectors: the screws are tightened at 2.5 daNm;
-the belt(s) of accessories: the same method as that for the distribution belt is used.
The stretching values are :
* alternator belt 263+/-10Hz
* Air-Comditioning (A.C) compressor belt 222+/-10Hz.
RECO VERY ENGINE
vnx.su

ENGINE E7J-A-2/6010
10 - 39
ENGINE AND LOWER ENGINE UNITS
TIGHTENING COUPLES (daNm)
Screws for fixing combustion-head cap1
S crew-nut for stretching distribution belt runner/pulley 5
Screws and screw-nuts M 6 for water-pump 1
Screws and screw-nuts M 8 for water-pump 2.2
Screw of the crankshaft pulley 2+68
o+/-6o
Screw of cam-shaft pin 4.5
Screws of rocker-arm ramp 2.3
S crews of flywheel 5 - 5.5
Screws of oil-pump 2.5
Screws of oil-pump cap 1
Screws of bearing caps 2.5+43
o+/-6o
Screws of combustion-head 2+97o+/-2o
Screws of the exhaust gallery 2.5
Screws of the intake gallery 2.5
Sparking plugs 2.5 - 3
Screws of the oil-crankcase 1
Screws for rocker-arm adjustment 1.5
Emptying jack 2
S crews of the connecting rod caps 4.2
Oxygen probe 4.5
TIGHTENING COUPLES
vnx.su