2004 DACIA SUPERNOVA stop start

E7J-A-2/60 ENGINE17
IGNITION AND INJECTION
17 - 6
The water - temperature sensor
This sensor (no.1) sends the inform ation concerning t he water t emperature to t he c alcu-
lator, and ot her i nformation is sent t o the on-board indicator, which will di splay water
temperature . In case of emergency regarding water t emperature , the calculator will command the
lighting of the water-tempera ture alert indicator on the board. In keeping with the water-temperature information received by the calculator, it will
command:
-the injection system;
-the relays for the command of the motor-ve ntilator e ngine cooling group.
When setting the contact on, the water tempera ture indicator, placed on the instrument
panel, shall be lighted for 3 seconds then it shall turn off.
1
So, after setting the contact off, during next 2 minutes from engine stopping, the water
temperature reaches the value of 102 C and the injection computer is then control ling the
cooling blower starting at low speed. When the tempera ture is lowering at 96 C, the blower will be stopped ; its operation
must not be over 10 minutes after engine stopping. PLACING OF ELEMENTS
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E7J-A-2/60 ENGINE17
IGNITION AND INJECTION
17 - 15
INTRODUCTIONIn order to achieve the communication between the injection calculator
a nd the diagnosing tester SAGEM CLIP, the following operations will be
performed:
- the glove compartment is opened and the plastic shield of the diag-
nosing plug, located at the top of the compartment, is taken off; - the tester is connected at the diagnosing plug and across the termi-
nals of the car battery; - the type of the vehicle is selected on the tester;
- the option “Calculator test” is then selected;
- the menu “Injection” is selected.
CAUTION!
1. Connecting or disconnecting the injection calculator to the car cabling
wi ll only be done when the engine is stopped and the car is off-contact.
2. If the contact is on or the engine is running, the terminals of the battery
will no t be loosened or disconnected. Replacing the battery on the car is not
allowed if the engine is running or the contact is on.
3. Loose or oxidized contacts are not allowed at the terminals of the battery,
or im perfect connections at the injection system cabling.
4. Starting the en gi ne with the battery connected to a starting robot is not
allowed. 5. R echarging the batt ery will only be done after disconnecting it from the
car cabling, and it will be done using a 12V charging-station.
DIAGNOSING-INTRODUCTION
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E7J-A-2/60 ENGINE17
IGNITION AND INJECTION
17 - 49
DIAGNOSING-CON
FORMITY TEST
Finally, the testing of the various states and parameters of the system will be done,
in the following situations:
A - With the stopped engine, and with contact set
B - With the hot engine, in idle mode, without consumers
C - During a route test.
LIST OF STA TES
Nr.
crt:Characteristics
1.
State: +After Contact to calculator
Parameter: Supply voltage of
injection calculator
Actuating relay command
Stat e: Connection for AC
Stat e: Configuration with anti-
st arter
Stat e: Connection with speed
translator
Stat e: Anti-starter
Acceleration pedal let free
Stat e: position of clapper when the
acceleration pedal is raised
Parameter: position of cla pper
Parameter : Memorized va lue for
t he position when the pedal is raised
Acceleration pedal slightly pushed
Stat e: position of clapper when ac-
cele ration pedal is raise d
Stat e: position of clapper when ac-
celerat i on pedal is comp letel y
pushed
A cceleration pe dal completely
pushed
Stat e: position of clapper when ac-
celerat i on pedal is comp letel y
pushed
Parameter: position of cla pper
Function
Battery
voltage
2.
Injection
calc ulator
configura-
tion
3. Anti-starter
4.
SUGGESTIONSA- With the stopped engine, and with contact se t
Visualizing and
Rema rks
Confirmed state
11.8V Confirmed state
if the car is
equipped with AC
Confirmed state
Confirmed state
Not confirmed
state
Confirmed state
0 Not confirmed
state
Not confirmed
state
Confirmed state
200 further problems
arise, refer to the
di agnosing of that
parameter
If further problems
arise, refer to the
di agnosing of those
states
If further problems
arise, refer to the
di agnosing of that
state
If further problems
arise, refer to the
di agnosing of those
parameters Diagnosis
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E7J-A-2/60 ENGINE17
IGNITION AND INJECTION
17 - 66
DIAG
NOSING-BREAKDOWN LOCALIZATION ALGORITHM
STARTING PROBLEMS
1.
Do not use this information before having done the complete check-up
with the tester!
SUGGESTIONS
♦♦
♦♦
Check if there is petrol in the fuel tank (do not rely on the
on-board in
dices). Check if it is the fuel recommended by
the manufacturer.
Disconnect the tube between the draining valve and the
intake collector and strangle it up. If the disturbances disap-
pear, the cause was the draining valve.
Connect the “CLIP TEHNIC” device to do this test in ac-
cordance with the usual manner of work.
Connect the tester “CLIP” and do the test corresponding to
the check-up of the rotation signal.
Gently touch the step-by-step engine in order to possibly
unbloc k it.
Check the fuel
Check the canister
draining valve♦♦♦♦
Check the engine
co
mp ression
Check the
engine flywheel
Check the step-by-
step engine
♦♦ ♦♦
♦
♦
Check if there are no broken tubes.
Check the state of the sparking plugs and the ignition coil.
Check the tubes and
hoses
♦♦♦♦
Check the ignition♦♦♦♦
Check the flow and the pressure of the fuel: the condition
of
the petrol-pump, of the pressure regulator. Check the
injectors (flow, shape of jet)
Check if the exhaust circuit is not strangled-up and the
cata lyst is not stopped-up.
Check the fuel-
supply circuit
♦♦♦♦
Check the exhaust
system
♦♦♦♦
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19 - 02
FILLING AND DRAINING
The hea ting radiator does not have a tap.
The circula tion of the cooling liquid is done continuosly within the heating radiator, which con-
tributes to the heating of the engine.
F
ILLING
The tightening of the emptying stopper is checked.
Th e dr aining screw placed on the tube between the engine and the air-conditioning radiator is
taken off.
Th e circ uit is filled through the hole of the de-gassing pot.
The dr aining screw is fastened when the liquid flows in a continuous jet.
The engine is set into motion ( 2500 rot/min).
The leve l is adjusted for approx. 4 minutes.
Th e stopper of the de-gassing pot is closed.
D
RAINING
The engine is let to run for 10 minutes at 2500 rot/min until the motor-ventilator starts (i.e. the
time for the automatic de-gassing).
Check if thelevel of the liquid is close to “ Max”.
Do not open the draining screw when the engine is running.
Fasten again the stopper of the de-gassing pot with the engine still hot.
FILLING AND DRAINING19
COOLING - EX HA U ST - FU EL
TANK
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20
CLUTCH
CLUTCH DISC MECHANISM
REPLACEMENT
This operation is done after taking apart the engine - gearbox ensemble and after
their separation.
The stopping sector MOT 582 is mounted.
The screws fixi ng th e mechan ism are taken off.
The mechan ism and the clutch disc are taken apart.
Visual inspection is done: - wear of engi ne flywheel;
- co ndition of the starter crown;
- watertightness at the level of the crankshaft fitting;
- co ndition of the flywheel surface (it must not have scratches).
The fau lty parts are replaced and the grooves of the clutch shaft are cleaned.
SPECIAL DEVICES
MOT 582 Flywheel immobilizing sector
AMB 1518 Clutch centering device
TIGHTENING COUPLES (daNm)
Clutch mechanism screws 2
20 - 9
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CV JH3 - 05021
MANUAL GEARBOX
21 - 17
SECONDARY SHAFT
SECONDARY SHAFT DISMOUNTING
Dismounting of the secondary shaft is performed starting from the 4 th step.
Dismount the elements, in the following order:
1. - the support washer
2. - gear IV pinion
3. - synchronizing ring
4. - synchronizer for gear III and IV
5. - stopping ring
6. - grooved washer
7. - synchronizing ring
8. - pinion of gear III
9. - grooved washer
10. - stopping ring
11 . - grooved washer
12. - step pinion II
13. - grooved washer
14. - stopping ring
15. - synchronizer ring
16. - synchronizer for steps I and II
17. - synchronizing ring
18. - step I pinion.
GEARBOX DISMOUNTING
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MECHAN ICAL ELEMENTS CONTROL
37
The tightness of the servobrake is checked on the vehi cle, with the hydraulic
circuit under operation.
Connect the vacuum meter between the servobrake and the inlet collector by means of a “ T
” type connector. The connecting hose of the vacuum meter shall be as long as possible.
Start the engine and let it idle run for 1min.
Block the air suction hose by means of the MOT 453 device.
Stop the engine.
If air suction lowers with more than 33 mbar (25Hg) in a 15 seconds period, it means there
is a loss at t he retainer valve (replace the valve) or at t he servobrake m embrane (replace t he
servobrake) Dismount the MOT 453 device
Dismount the vacuum hose
Reinstate the connection be tween t he servobrake and the inlet c ollector by m eans of the
vacuum hose. TIGHTNESS CHECKING
SERVOBRAKE
SPECIAL TOOLS
Shutter MOT 453
37 - 8
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