DACIA SOLENZA 2004 Manual Online

MOTEUR E7J-26213
FUEL SUPPLY
13 - 2
Fuel ramp
AT T E N T I O N !
When opening the fuel circuit, protect
by means of a gauze piece against petrol
s plashing due to residual pressure.
DISMOUNTIN G
Disconnect the battery.
Dismount the air filter.
Disconnect:
- pipe 1 for fuel supply;
- pipe 3 for fuel return;
- pipe 4 of the pressure controller.
REMARK:
For EURO 00 and EURO 96, the
pre ssure c ontrol ler and return pi pe are
placed in t he fuel tank.
Dismount the attachment screws ( 2) o f the
fuel ramp. Dismount the ramp. In order to dismount an injector, re trieve
the clip 5, and then extract the injector.
R EMOU NT I NG
Replace the annular gaskets from the
injectors bottom; if t he injector has been
dismounted, the gasket from the injector’s
head will be also replaced.
In order that petrol fuel supply and return
connection a re c orrectly m ounted, a ” clic”
must be heard when connecting. Perform the dismountin g operations in the
reverse order.
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MOTEUR E7J-26213
FUEL SUPPLY
13 - 3
Pump capacity
1
PUMP CAPACITY CHECKING
SPECIAL TOOLS
Pliers for “CLICK” collars.
IMPORTANT
Duri ng this operation, it is obligatory :
- not - sm oki ng a nd not bri ngi ng
incandescent obj ects at the working pl ace; - protect against petrol splashing due
to residual pressure remained in piping
during their dismounting.
VEHICLES WITH FUEL RETURN
The checking of the fuel pump capacity is
recommended to be performed by t he fue l
return hose connected on the level transmitter -
pump assembly .
Disconnect the fuel return pipe ( 1).
Connect on the pipe a hose, one extremity
being introduced in a calibrated vessel, from 0
to 2000 ml. VE HIC
LES WITHOUT FUEL
RETURN
Disconnect the supply pipe from the fuel
electric pump assembly .
Connect on the pipe a hose, one extremity
being introduced in a calibrated vessel from 0
to 2000 ml.
Start the fuel electric pump by bridging the
3 and 5 terminals of the fuel pump H relay
(placed in the fuse and relays box from engine
compartment).
The pump output must be minimum 1.3 l /
min at 12 V.
If the output is not correct, check the pump
s upply voltage (capacity i s decreasing by
approximate 10% for a voltage drop of 1 V).
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MOTEUR E7J-26213
FUEL SUPPLY
13 - 4
Supply pressure
MOT. 13 11 -0 6
MOT 1311 -04
MOT 1311 -01
SUPPLY PRESSURE CHECKING
SPECIAL TOOLS
MOT 13 11 – 01 Petrol pre ssure
checki ng ki t
MOT 13 11 – 04 J - connection
MOT 13 11 – 06 Device for
conn ection s
dismounting.
AT T E N T I O N !
When opening the fuel circuit, protect
by means of a gauze piece against petrol
s plashing due to residual pressure from
the supply circuit.
Dismount the air filter.
Disconnect the fuel supply hose.
Connect the MOT 1311-04 device on the
ramp, and then reconnect the fuel supply
piping to the connection.
Mount the manometer 0 ÷ 10 bar and
the flexible hose MOT 1311 – 01.Bridge the terminals
3 and 5 of the fuel pump
relay H, placed in the fuse and relays box.
The measured pressure must be 3.5 bars.
Fo r vehicles with fuel circuit without return
(controller mounted on pump), the pressure is
constant.
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ENGINE E7J - 26214
14 - 1
ANTI-POLLUTION
Petrol vapors re-aspiration
THE CIRCUIT OPERATING DIAGRAM
1I NTAKE MANIFOLD
2 CAN PURGING VALVE
3 CARBON CAN
4FUEL TANK
MC OMMUNICATION CONNECTION WITH ATMOSPHERE
AT T E N T I ON !
For a normal operation of the circuit, the M connection must be clogged.
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ENGINE E7J - 26214
14 - 2
ANTI-POLLUTION
Pet rol vapors re-aspiration
OPERATING PRINCIPLE
The communication of the t ank with t he
atmosphere is done through the carbon can. The petrol vapors are retained when they are
passing through the active carbon from the carbon
can. By means of a purging valve controlled by a
RCO signal issued by UCE injection, the petrol
vapors are re-aspired through piping by the intake
manifold.
The flow section of the purging valve is
variable, subject to the balance given by the
magnetic field created by supplying the purging
valve coil and the power of the spring ensuring
the valve closing.
RE-ASPIRATION CONDITIONS
The can-purging valve is controlled by pin
4 of the UCE injection, in the moment when:
-w ater tempera ture > 20 ° C;
- air temperature > 10 ° C;
- engine is running over a certain im-
posed charge; -valve potentiometer is not in the posi-
tion acceleration pedal not pressed.
By using the CLIP tester, it is possible the
reading of the RCO value (opening cyclic
ratio).
The purging valve is closed for a value
smaller than 0.7%. OPERATION CHECKING OF THE
CAN PURGING VALVE
A defective operation of the petrol vapors
re-aspiration system, may lead to an unstable
idling or even to the engine stopping. First of all, check:
-circuit conformity (see the operating
diagram)
-piping condition between the can and
the fuel tank (sealing, circuit clogging).
The (B) piping coming from the tank shall
be clogged.
Connect a manometer (-3…+3 bar) at the
(M) connection for communication with the
atmosphere and check at idling if there is
depression. Is there depression?
YES – Set conta ct off. Usi ng a
vacuum pump, apply a 500 - mbar depression
at the (A ) piping connection of t he purging
valve. The value of the red depression must
not have a variation more than 10 mbar
wi thin 10 seconds.
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ENGINE E7J - 26214
14 - 3
ANTI-POLLUTION
Pet rol vapors re-aspiration
1
4
3
2
Petrol vapors re-aspiration
If the pressure is varying more than 10
mbar, then the purging valve is defective and
the carbon can assembly is to be replaced. NO – When conditions for purging valve
controlling are accomplished and this one is
not opening, check its controlling electri c
circuit (between UCE injection pin 4 and
purging valve), from point of view continuity
or short-circuit. The RCO value of the signal received by
the purging value from the computer, may be
red by means of the CLIP tester in PR 023.
The minimal value is 0.7 % (corresponding
to the closing position of the purging valve).
LOCA TION – DISMOUNTING
The carbon can assembly ( 1) with
incorporated purging valve, is placed on the
front right wing lining. Disconnec t the piping ( 2) coming from the
tank and piping ( 3) to the engine.
Di sconnect the electric connector ( 4) of
the purging valve. Remove the can from the attachment
support. Perform the dismounting operations
in
the reverse order REMOUNTING
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ENGINE E7J - 26214
14 - 4
ANTI-POLLUTION
Oil vapors re-aspiration
1 2
CIRCUIT PRESENTATION
1 – Ho se for oil vapors re-aspiration, connected upstream of valve body between cylinder
head cover and air filter case (the circuit is used for middle and big charges).
2 – Hose for oil vapors re-aspiration, connected downstream of valve body between cylinder
head cover and intake manifold.
For a correct operation of the oil vapors re-aspiration system, the hoses must be kept clean
and in good condition.
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16ENGINE E7J-262
16 - 1
ALTERNATOR – STARTER
IDENTIFICATION
ENGINE ALTERNATOR INTENSITY
VALEO A11 VI 87 75A
E7J - 262
VALEO A13 VI 212 80A
CHECKING
After 15 minutes of heating under a 13.5 V tension.
ENGINE RPM ALTERNATOR 75 AALTERNATOR 8 0A
(rot/min) (A)(A)
10004654
2000 6875
3000 7180
4000 7282
OPERATION / DIAGNOSTIC
These vehicles are equipped with alternators with internal ventilation, incorporated voltage
regulator, and charging indicator on the instrument panel, which must operate as follows:
-w hen the contact is set on, the indicator is on;
-af ter engine starting, the indicator is off;
-i f indicator goes on during engine running, then it shows a charging failure.
INCIDENTS SEEKING
A. The indicator is not lighting when setting the contact on
Check : -the electric connections must be well done;
- the indicator bulb is not worn (when the circuit is mass connected, the bulb must be on).
Alternator
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ENGINE E7J-26216
16 - 2
ALTERNATOR – STARTER
B. The indicator is lighting, engine being running.
This shows a charging failure, which may be caused by:
- alternator driving belt broken, charging wire connected to alternator is broken (+ per-
manent);
-alternator failure(rotor, stator, diodes or brushes);
- voltage regulator failure;
- an over voltage.
C. Client is claiming a charging defect, but the luminous indicator is correctly oper-
ating.
If the adjusted voltage is smaller than 13.5 V, check the alternator.
The defect may be caused by : -worn diode;
-b roken phase;
- collector wear or coal dust.
VOLTAGE CHECKING
Connect a voltmeter to the battery plugs and read its voltage value.
Start the engine and speed the e ngine till the voltmeter needle i s set on the adjusted voltage.
This voltage must be between 13.5 V and 14.8 V
Connect maximum of consumers; the voltage must still between 13.5 V and 14.8 V.
AT T E N T I O N !
In case electric arch welding is performed on vehicle obligatory disconnect the bat-
tery and the voltage controller (alternator).
Alternator
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16ENGINE E7J-262
16 - 3
ALTERNATOR – STARTER
INTENSITY (A)E NGINEE 7J
Nominal intensity 7 5 80
Minimal intensity, generated by the alternator with
maximum of consumers under operation 5 1 60
DIAGNOSTIC
Special tool: CLIP tester and accessories for physical measurements.
CH ARGING CIRCUIT CHECKING
CLIP tester i s enabling the a lternator checking, by m easuring t he genera ted vol tage and
intensity with and without electric consumers.
REMARK: The ammeter pliers is of inductive type 0 ÷ 1000 A. Its mounting is done
without the battery disconnecting, enabling so the memorized data preserving and the
adapting values from the injection c omputer.
Mount the ammeter di rectly on t he alternator e xit, having t he arrow directed towards the
alternator.
The measurements are to be performed in three stages :
- measurement of the battery voltage with contact taken off;
- measurement without consumers of the adjusted voltage and generated intensity;
- measurement, with maximum of consumers, of the adjusted voltage and generated in-
tensity.
The values resulting further to the measurements, lead to following interpretations:
- voltage battery (without consumers) < 12.3 V – indicating discharged battery.
Without consumers :
- adjusted voltage > 14.8 V – indicating defective regulator;
- adjusted voltage < 13.2 or charging current < 2A – indicating charging failure.
With consumers:
- adjusted voltage > 14.8 – indicating defective regulator.
- adjusted voltage < 12.7 – indicating that alternator charging current must be checked
compared with its characteristics:
If the measured current is too small, check the following:
- alternator wear (collector brushes, etc);
- battery connections;
- engine mass stripe;
- drive belt tension.
If the measured current is correct and the adjusted voltage is too small, the cause may be: -the vehicle has too many electric consumers;
- the battery is discharged.
Alternator
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