DACIA SUPERNOVA 2004 Repair Manual

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COOLIN G - EX HA U ST - FU EL TANK
COOLING FAN DIAGNOSTIC
for vehicles without air conditioning
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COOLING - EX HA U ST - FU EL TANK
DISMOUNTING
The car is set on a two-column lifting stand.
The ba ttery is disconnected.
Th e co oling circuit is emptied at the filling stopper placed at the lower part of the radiator.
The fo llowing are taken apart.
- the distribution belt (see Chapter “ Distribution belt”) ;
- the ex tending pulley / runner (1);
- the fixing screws of the water-pump.
The water-pump is taken out at the upper end of the engine compartment.
SPECIAL DEVICES
MOT. 1202-02 Pincers for elastic collars
MOT. 1505 Device for measuring the belt tension
TIGHTENING COUPLES (daNm)
Screw-nut for extending pulley / runner 5
Screw for the crankshaft pulley 2+68
o+/-6o
Screws for right-side pendular stand 6.2
Screw-nut for hydro-elastic buffer 4.4
Screws for water-pump 2.2
Screw-nuts for water-pump 1
Screws for wheels 7.5
WATER PUMP
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COOLING - EXHA U ST - FUEL TANK
CLEANING
It is very important t hat the fitting surfaces of the aluminum parts should not be scratched.
Use Decapjoint to dissolve the particles of fitting that are left stuck to them.
The pa ste i s applied onto the c leaning surface and then you wait for approx. 10 minutes,
then it is removed with a wooden spatula.
Du ring this operation you should used protection gloves.
R
EMO UNTING
The watert ightness of the water-pump is done with LOCTITE 518; the H cord has the
thickness of 0,6-1 mm and must be applied according with the chart below. The distri bution belt is re-mounted (see Chapter “ Distribution belt ”).
The cooling circuit is filled and dra ined (see Chapter “ Filling and Draining”).
WATER PUMP
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COOLING - EX HA U ST - FU EL TANK
DISMOUNTING - REMOUNTING EXHAUST
The catalytic converter, when in operation, reaches high tempera-
tures, and consequently m ust not co me in touch with flammable materials, which
would lead to self-combustion. The catalytic converter will be kept out of mechanic shocks.
D
IS M O UNT ING
In order to take apart t he noise-damper system 1, the following opera tions a re to be
performed: The screw-nuts 2 of the fixing collar, between holder 3 and noise-damper 1, are
loosened; The two elastic fixing stands of the damper are taken apart , at the back on the car
bodywork; The noise-da mper system is pulled and taken out.
In order to take apart the assembled holder 4, the following operations are to be performed:
Collar 4 is taken off and the assembled holder is disconnected from the catalytic
converter;
The elastic stands of the assembled holder are taken off;
The scre w-nuts of the fixing collar 2 are loosened and t he a ssembled holder is
taken out by gently rot ating, and pulling it towards the front.
In order to take apart the catalytic convert er system 6, the following opera tions are to
be performed:
The engine shield is taken apart ;
The two screw-nuts 7 for the fixation of the engine shield on the two stud-bolts on
the exhaust gallery flange;
The fixing screws of converter stand 5 are taken off;
The oxygen probe is taken apart;
Collar 4 is taken apart, and t he c atalytic converter assembled on the assembled
holder is disconnected; The catalytic convert er is taken out.
R
EMONTARE
The mounting opera tions are performed in the re verse order.
Make sure there perfect watertightness between the elements of the exhaust system,
by using the Wurth watert ightening paste, along the (i nner part of the) joining stretch,
between the gas expansion chamber and the catalytic convert er ( 0.014 kg), and between
the noise-da mper a nd the expansion chamber ( 0.013 kg);
The fittings of the oxygen probe will be replaced for each taking-apart operation;
The tightening couple between the damper and the holder: 3.5 daNm +/-0.5.
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COOLING - EXHA U ST - FUEL TANK
DISMOUNTING - REMOUNTING EXHAUST
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COOLING - EX HA U ST - FU EL TANK
IMPORTANT
Duri ng the interventions affecting t he
petrol tank and the fuel supply circuit one
must not smoke or bring incandescent
parts near the work-place.
The emptyi ng of the tank does not require
taki ng apart the tank. Ac ces s is allowed
through the inside of the car (i.e. the boot). To take apart:-the carpet of the boot;
-t he lid of the visiting mouth (by taking
off th e four screws);
-the c lick-collar 1 is ta ken out by means
of the MOT 1202 device;
-a t ube is adapted to the A outlet, which
should be long enough to be introduced into a
ve ssel outside the car. The
H relay of the petrol-pump is taken out of
the fuse box located in the engine compartment,
and term inals 3 and 5 of the re lay connector are
shunted, thus ensuring the operation of the petrol
pump ( 12 V).
Th e operation of the pump will be stopped
when an intermittent leakage of the petrol is no-
ticed. The shun t is taken off.
The relay is mounted.
EMPTYING OF TANK
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COOLING - EXHA U ST - FUEL TANK
The fuel tank has a watertight stopper; the inlet for the fi lling with unleaded fuel has a
filling orifice incompatible with a classical filling gun (as lead has a negative effect on the
anti-pol lution system, the oxygen probe and the catalyst).
THE ANTI - TILT VA L V E
In case the car is tilted / overthrown, the valve gets blocked, thus avoiding petrol from spilling
towards the carbon canister or the filling inlet.
T
HE SECURITY VALV E
In case the petrol vapour recycling circuit is stopped up, the security valve avoids over-pres-
sure or under-pressure in the tank. It is mounted with the red-marked end towards the joining tube “T”, and with the white-marked
en d towards the tube linking it to the filling inlet.
TANK FU EL DESCRIPTION
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COOLING - EX HA U ST - FU EL TANK
TA N K FUEL DESCRIPTION
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COOLING - EXHA U ST - FUEL TANK
TANK FU EL DESCRIPTION
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COOLING - EX HA U ST - FU EL TANK
DIS M OUNT ING
In order to take apart the petrol tank from the car the following opera tions are in order:
The battery i s disconnected;
The tank is emptied of fue l;
The carpet in the boot is taken out;
The cabling case of the fuel-level transmitter i s taken off;
The collar fi xing the airi ng conduit on the tank lid is taken off;
The junctures of t he fue l-supply c onduits (goi ng- and return-) are taken off t he tank lid;
The driving axis of the spare-wheel stand is taken off;
The car is suspended on an elevator;
The spare-wheel is taken out of i ts holder;
The scre ws fixing the protection screen of the tank, and then the tank itself, are taken
off; The collars fixing the anti-t ilt valve juncture are taken off.
R
EMOUNTING
It is done in the reverse orde r of the taking apart opera tions. T
ANK FUEL
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