wit h ai r co nditioning ..................................... .............. 1 9 -9
Diag nostic – fai l ures interp retat ion
at vehicles wit h ai r co nditioning ............................... 1 9 -10
Wat er pump ............................................................... 1 9 -11
Exhau st Assemb ly...................................................... 1 9 -13
Fu el tan k .................................................................... 1 9 -15
Fu el pump ................................................................. 1 9 -22
Fu el filter ................................................................... 1 9 -24
Eng ine susp ension ..................................................... 1 9 -25
CLUTCH
Identifi cation ............................................................. 2 0 -1
Diag nostic .................................................................. 2 0 -2
Cl u tch di sk – Mechan ism ......................................... 2 0 -5
Pres s ure bearing – Clutch rel eas ing fo rk ................ 2 0 -7
Engine flywheel ................................................. 20-8 MECHANICAL GEARBOX
Se ctional view .................................................... 21-1
Identification ...................................................... 21-2
Tightening moments in daNm .......................... 21-3
Parti curarities .................................................... 21-4
Ratios ...... ............................................................ 21-5
Ingredie nts .......................................................... 21-6
C apacity, lubricants .......................................... 21-7
Parts t hat are replaced afte r
each dismonting ................................................. 21-8
Necessary special tools ...................................... 21-9
Gearbox dismounting ........................................ 21-10
R eplacement of the planetary se aling
gasket (on the vehicle) ....................................... 21-30
R eplacement of the 5-th gear synchroniser
and pinion (on the vehicle) .................................. 21-32
TRANSMISSION
Fr ont transversa l transmission ........................ 29-1
Bell ows - Bearing asse mbly to
the gearbox (left) ............................................... 29-4
Bell ows to wheel (left) ....................................... 29-7
Be llows to gearbox (right) ................................. 29-12
Bell ows to wheel (right) .................................... 29-15
GENERAL
General principle sc hedule
of the brake circuit ............................................ 30-1
Tightening moments (in daNm) ....................... 30-2
Com position and dimensions
of the ma in braking system elements ............... 30-6
Br aking system diagnostic ................................ 30-7
Br ake connections and ducts ............................ 30-12
Br ake fluid ......................................................... 30-13
Br aking system purging .................................... 30-14
The influe nce of angles ...................................... 30-16
Angles checking princ iple ................................. 30-17
Fr ont axles checking and adjustment ............. 30-18 FR
ONT AXLES ELEMEN TS
C haracteristics ..................................................... 31-1
Sus pension arm ................................................. 31-2
Elastic bushings of the suspension arm ........... 31-5
Sus pension ball joint .......................................... 31-6
Br ake lining (pads) ............................................ 31-7
Checking the brake pads wear ......................... 31-9
Br ake caliper ...................................................... 31-10
Br ake disk ........................................................... 31-12
St eering knuckle ................................................. 31-13
St eering knuckle bearing (35 x 65 x 35) ......... 31-15
Fr ont suspension ................................................ 31-16
Shock absor ber, Spring ...................................... 31-17
Sp ring – shock absorber assembly ................... 31-18
Anti roll bar ........................................................ 31-20
Power tr ain support .......................................... 31-21
REAR AXLES ELEMENTS
C haracteristics ................................................... 33-1
Re ar axle ............................................................. 33-2
Re ar suspension ................................................. 33-4
Shock absor ber ................................................... 33-5
Spring ...... ........................................................... 33-6
Br ake drum ........................................................ 33-7
Br ake cylinder .................................................... 33-8
Br ake shoes ......................................................... 33-10
Be aring ................................................................ 33-13
WHEELS AND TIRES
C haracteristics ................................................... 35-1
Wheels balancing ............................................... 35-4
STEERING ASSEMBLY
St eering connecting rods .................................. 36-1
Manual steering box .......................................... 36-3
St eering box pushe r ........................................... 36-4
Noise absorbant bushing .................................. 36-5
Bell ows ................................................................ 36-6
General .............................................................. 36-7
Power steering box ............................................ 36-8
P ower steering box pusher ............................... 36-11
Power steering pump ......................................... 36-12
Ste ering column ................................................. 36-14
THE MECHANICAL ELEMEN TS CONTROLS
Br ake pump........................................................ 37-1
S ervobrake ......................................................... 37-3
Air filter – se rvobrake reta iner valve .............. 37-6
Handbrake - adjustment ................................... 37-7
Handbrake control lever ................................... 37-8
Handbrake secondary cables ............................ 37-10
Br ake flexible hoses ........................................... 37-11
Br ake pressure controller .................................. 37-13
Gears control ..................................................... 37-15
Cl utch and brake pedals ................................... 37-17
Clutch cable ........................................................ 37-18
Pe dals support ................................................... 37-20
Acceleration control .......................................... 37-21
20
21
29
30
31
33
35
36
37
Transmission2
Chasis3
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ENGINE E7J-26210
ENGINE ASSEMBLY
10 - 4
Power train group
The power train dismounting-remounting is to be performed on the engine compartment upper
part by means of a mobile lifting device.
The vehicle i s to be placed on a 2–columns
elevator.
Dismo unt :
- battery
- air filter inlet pipe;
- air filter assembly ;
- engine bonnet;
- front wheels.
Disconnect the oxygen sensor ( 1) connector
or the connectors of the two oxyge n sensors
(EURO 00 ).
Di smount : thermal protection screen and
descending tube from the exhaust manifold.
DISMOUNTIN G
Drain:
- the cooling circuit on the water pump
inlet pipe; - oil from gearbox;
- oil from engine if necessary;
- refrigerant fluid to a charging station
(vehicles with AC);
- oil from the power steering circuit
(vehicles with power steering).
- Oil from the power steeri ng circuit
(vehicles with power steering);
Dismo unt :
- engine shield;
- descending tube attachment screws
on support;
TIGHTENING MOMENTS) (daNm)
Right support attachment screw on engine 6.2
Hydr o-elastic buffer attachment nut 3.7
Left elastic buffer attachment nut 6.2
Whe els s c rew s 7.5
Power train- battery attachment screws 2.1
Connecting rod attachment nut on steering cross member support 6.2
Anti-roll connecting rod attachment screw on gearbox connecting rod 10.5
Control bar attachment screw on gearbox connecting rod 2.7
Pipes a ttachme nt s crews on comp ressor 2.1
High pressure pipe on DA pump 2.1
1
23
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ENGINE E7J-26210
ENGINE ASSEMBLY
10 - 7
Power train group
Dismount the hydro-elastic buffer nut (on
the right side).
Remove the power train and place it on a
support.
Disco n nect th e pr e ssu re controller
connector for power steering.
Dismo unt :
- hoses from oil reservoi r for power
s teering by means of pliers MOT 1202-01;
- high pressure pipe from the power
steering pump.
Dismount the refrigerant fluid pipes from
compressor (vehicles with AC unit).
Sustain the power t rain by means of the
two liftin g supports u sing a mobile lifting device
(mobile crane). Dismount the four attachment screws of the
power train support-battery and the elastic bu ffer
nut (9).
9
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ENGINE E7J-26210
ENGINE ASSEMBLY
10 - 8
Power train group
REMOU NT I NG
Perform the dismounting operations in the reverse order.
Tighten the screws and nuts to the required moment.
Perform: -filling and purging of the cooling circuit (see chapter 19”Filling a nd purging”);
-f illing with oil of the engine and gearbox;
-f illing of the power steering circuit (see chapter 05 “ Draining-Filling)- for vehicles
equipped with power steering;
-filling of the air conditioning circuit with refrigerant fluid HFC 134a (see chapter 62 “Air
conditioning”). Adjust the clutch pedal stroke (see chapter 37”Clutch control adjustment”).
REMARK:
At each operation implying battery dismounting, when reconnecting the battery,
introduce the radio code, which is written on the vehicle-purchasing invoice.
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19
19 - 5
COOLING - EXHAUST - TANK
Radiator
SPECIAL TOOLS
MOT 1202 - 01
Pliers for elastic clips
MOT 453Hoses clamp
DISMOUNTIN G
Drain the air conditioning unit – for the ve-
hicles with air conditioning (see chapter 62” Fill-
ing –Draining the air conditioning circuit”). Disconnect the battery
Dismount the air inlet duct from the battery
screen. Detach from clips the oi l reservoir from the
battery screen, for the ve hicles equipped with
power steering. Clamp the hoses from radiator by means of
MOT 453 device.
Dismount the hoses from radiator by means
of the pliers for elastic clips MOT 1202-01 and
recover the cooling fluid.
Disconnect the engine fan connector (1).
Detach the wiring from clips ( 2) and (3).
Di sconnect the resistance connector ( 4), for
the vehicles with air conditioning. Carefully release the engine fan from the four
attachment clips ( 5) on the radiator- for the
ve hi c l e s e qui ppe d wi t h a i r c ondi t i oni ng,
c onsequently, the four screws ( 6) are
di sm ount e d, f or t he ve hi c l e s without a i r
conditioning.
The vehicles without air conditioning. Carefully remove the engine fan from the
sustaining p oints (7).
Dism oun t t he ra di a t or of f t he si de
attachment supports on the radiator upper
cross beam. Disconnect the two pipes from condenser.
Re l ease t he ra di ator from the lowe r
su p po r tin g buffers togeth er with the
condenser and recover the cooling fluid from
the radiator. Dismount t he condense r a ttachm ent
sc rews on the cooling radiator (for vehicles
with air conditioning).
For vehicles with air conditioning.
REMOU NT I NG
Mount the condenser on the new cooling
radiator (for vehicles with air conditioning).
M ount the radiator-condenser assembly
on the vehicle, by supporting it in the lower
elastic supports and attach it in the supports
of the radiator upper cross beam. Mount the engine fan assembly on the
sustaining supports (7) and attach it in the four
screws (for vehicles without air conditioning).
54
3
1
5
2
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19
19 - 6
COOLING - EXHAUST - TANKRadiator
* For the vehicles with air conditioning :
- Connect the t wo pipes to the condenser.
- Connect the engine fan resistance connector (1) and the engine fan connector, then attach
it by clips. Connect the battery.
Attach in clips the oil reservoir for power steering and the air inlet pipe on the battery screen.
Perform the cooling circuit filling and purging.
Perform the air conditioning circuit filling with refrigerant fluid HFC 134a (0.600 Kg) and
check for refrigerant fluid leak ( for vehicles with air conditioning).
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36
STEERING ASSEMBLY
36 - 7
General
CONSTANT POWER STEERING (CPS)
1. Power steering pump
2. Power steering box
3. High pressure piping
4. Low pressure piping
5. Oil reservoir
6. Rotary valve
7. Pressure controller
8. Accessories belt
9. Rigid ducts
10. Steering box working
chambers
The working principle of the Constant Power Steering (CPS ) system, consists in steering
hydraulic assistance by hydraulic fluid (oil) passing through a drawer (the two chambers ( 10)
from steering box) with double effect and through a rotary valve ( 6) that is distributing the fluid
through two pipes (9) towards the steering box ( 2) subject t o the full turni ng direction of the
directing wheels. The hydraulic assistance is ensured by a pressure controller ( 7) attached on the high pressure
pipe (3) and connected to the injection computer.
The injection computer is receiving information, during power steering operation, about the
pressure value in “high pressure circuit” ( which may be seen by means of the CLIP tester). The
pressure value in “high pressure circuit” is depending of the pomp conducted pressure as well as
of the used oil fluidity. The more pressure is high, the power steering pump is absorbing more additional energy.
The power steering pump ( 1) is continuously providing in the circuit a constant hydraulic fluid
(oil) flow, regardless the engine RPM, based on the fact t hat pump is driven by the accessories
belt (8). In this case, the system has the generic denomination of “ Open Center System “
REMARK:
The steering is not to be ful ly locked at maximum m ore than 45 seconds at an engine
RPM of 2500 rot/min (risk of power steering pump damaging).
36054
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