Page 159 of 933

E7J-A-2/60 ENGINE17
IGNITION AND INJECTION
17 - 69
DIAG
NOSING-BREAKDOWN LOCALIZATION ALGORITHM
RUNNING PROBLEMS3.
SUGGESTIONSDo not use this information before having done the complete
check- up with the tester!
Check if there are no broken tubes
Check if the air filter is not deformed.
Check the condition of the fittings.
Check if the exhaust collector is watertight.
Make sure that, after taking them off, the injectors do not leak.
♦
♦
♦
Check if there are no broken tubes
Check the state of the sparking plugs and the ignition coil.
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 manufa cturer. Check if there are no broken tubes.
Check if the exhaust circuit is not strangled-up and the
cata lyst is not stopped-up.Check the exhaust
system
♦♦
♦ ♦
♦ ♦ ♦Check, on the oil gauge, if the level of the oil is not too high.
Check the air filter
Ch eck the fuel
Check the tube s a nd
hose s.
Check the fuel-sup-
ply circuit
Check the ignition Check the engine oil
levelCheck the intake
collector
Check the exhaust
collector
Check the injectors
A
vnx.su
Page 160 of 933

E7J-A-2/60 ENGINE17
IGNITION AND INJECTION
17 - 70
DIAG
NOSING-BREAKDOWN LOCALIZATION ALGORITHM
Check if the clapper body is not clogged.
Check if there are cases of lack of watertightness (noise)
on the powe r-brakes.
Connect the tester “CLIP” and do the test corresponding
to the check-up of the rotation signal.
Check if the spurs, the brake cylinders and the wheel ball-
rings are no t seized-up.Check the body o f
the clapper♦
Ch eck t he power-br akes
Check the engine
flywheel
Check the running
train
Check the cooling
of the engine
♦
♦
♦
Check if there is enough engine cooling.♦
Check the canister
draining valve Disconnect the tube between the draining valve and the in-
take collector and strangle it up. If the disturbances disap-
pear, the caus
e was the draining valve.
Check the engine
comp ression Connect the “CLIP TEHNIC” device to do this test in accor-
dance w ith the usual manner of work.
AFTER REPAIR Erase the defec
ts memorized. If there are no other problems,
eras e the parameters memorized by the calculator.
♦
♦
A
vnx.su
Page 161 of 933
19 - 1
19
COOLING - EXHA U ST - FUEL TANK
QUANTITY AND QUALITY OF COOLING LIQUID
TYPE ENGINE QUANTITY (L) CALITAT E PECULIARI TI ES
E7 J 6 Anti-freeze type D Protection up to -400C
GLACEOL RX
THERMOSTAT
TYPE E NGINE START OF OPENI NG (0 C) END OF OPENI NG (0 C ) DRI VE (MM)
E7J 89 101 7,5
CHARACTERISTICS
vnx.su
Page 162 of 933

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
vnx.su
Page 163 of 933
1. CHECKING WATERTIGHTNESS OF CIRCUIT
The MS 554-01 adapter is mounted instead of the valve of the de-gassing pot.
The MS 554-07 device is connected to the adapter.
The engine is heated, and then stopped.
the pump is used in order to put the circuit under pressure. The pumping is stopped at a value 0.1 bar smaller than the tare value of the valve ( 1.2 bar).
Th e pr essure must not go down; otherwise, the leak is looked for.
Th e junction of the device for cooling system decompression is progressively unscrewed,
then the apparatus is taken off and the valve of the de-gassing pot, equipped with a new fitting,
is mounted.
2. CHECKING WATERTIGHTNESS OF CIRCUIT
The MS 554-06 devi ce, then the pressure in the circuit is reestablished; this pressure must
become stable at the tare value of the valve with the control tolerance of +/-0.1 bar.
Th e tare value of the valve of the de-gassing pot: 1.2 bar.
19
COOLING - EXHAUS T - FUEL TANK
CONTROL
19 - 03
vnx.su
Page 164 of 933
19 - 4
19
COOLING - EX HA U ST - FU EL TANK
Components:
1. Engine
2. Radiator
3. De-gassing pot
4. Air-warming device
5. Thermostat stand
6. Nipple ø 3
7. Draining screw
THE SCHEMA
Thermostat
Wa ter pump
vnx.su
Page 166 of 933

19 - 6
19
COOLING - EX HA U ST - FU EL TANK
COOLING FAN REPLACEMENT
for vehicles with air conditioning
1 6 5
3 2 4
7
8
DISMOUNTING
Di
sconnect the (-) plug of the battery.
Di sconnect the cooling fan connector (5).
Di sconnect the cooling fa n resistance connector (1). Mark t he mounting position iden-
tification of the two connectors.
Detach the wiring from clip (6).
Cut the clip attaching the wiring on the cooling fan assembly in point (7).
Dismount the four-attachement screws (3) of the cooling fan on the radiator, recovering the
washers (2) and (4). Remove the cooling fan assembly.
REMOUNTING
Check the condition of the fan propeller, cooling fan electri c motor, washers.
Tighten the attachement screw (3) of the assembly.
Replace the clip from point (7).
Mount the wiring of t he cooling fan assembly taking i nto the considera tion the mount-
ing position m arked before dismounting. This is to be fi xed by means of a clip in point (7)
and will pass trough the clip (6). Connect the cooling fan re sistance connector (1).
Connect the cooling fan c onnector (5). Observe t he m ounting position i dentification of
the two connectors. Connect the battery plug (-). In case the vehicle is equipped with progammable radio-
cassettes, electronic clock, e tc, these a re to be reset before returning the vehicle to t he client. Check t he c ooling fan opera tion: start the vehicle engine and disconnect the water
temperature sensor. The cooling fa n must start. Reconnect the water t emperature sensor,
then by means of the CLIP tester, erase the memorized failure related to the water t em-
perature sensor.
FAILURES
ERASING
vnx.su
Page 169 of 933
19 - 9
19
COOLING - EXHA U ST - FUEL TANK
RESISTANCE COOLING FAN REPLACEMENT
for vehicles with air conditioning
De scription of t he opera tion :
Di sconnect the battery (-) term inal.
Di sconnect the resistance connector.
Di smount the two attachment screws of the re sistance.
Position the new resistance assembly.
Mount the two attachment screws of the resistance (tightening moment 4.5 Nm).
Connect the resistance connector.
Connect t he battery (-) terminal. In case the vehicle is equipped with programmable
radio-cassettes player, electronic clock, etc, those are to be re-programmed before return-
ing the vehicle to the client. Check the engine motor fa n operation.
vnx.su