suspension DACIA SOLENZA 2004 Repair Manual

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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VA LUES AND ADJUSTMENTS
07
07 - 9
Checking values of the rear axle angles
ADJUSTMENTS
Not adjustable
N ot adjustable
VEHICLE
POSITION
Unloaded
Unloaded
Unloaded
VA L U ES
0030' ± 10'
(For two wheels) Cl osing
0
030' ± 10'
2,9 mm ± 1 mm
ANG L E S
CAMBER
PARALLELISM
ELASTIC BUSHINGS TIGHTENING
PRELIMINARY OPERATIONS TO BE OBSERVED BEFORE
CHECKING THE STEERING ANGLES
1. Area (checking surface) – it must be a s horizontal as possible.
2. Wheels, tires – check (from e quipping point of vi ew) to have same type of wheels and
tires on bot h axles (dimensions, inflating pressure, wear de gree). A pronounced wear i s not
allowing the correct horizontal positioning.
3. Suspension – check the shock absorbers, springs condition and height symmetry under
carriage body.
4. Joints – check the e lastic joints condition, steering and suspension ball joints clearance,
bearings clearances of the front and rear axles 5. Radial and axial run out of the wheels – must not be over 1 mm. This will be compensated
with the reading instruments. 6. Manufacturer’s method – each vehicle manufacturer is providing the checking conditions,
axles weights repartition, and presentation of under carriage body heights, not loaded.
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ENGINE E7J-26211
11 - 1
DISTRIBUTION SYSTEMDistribution belt
DISMOUNTIN G
Place the vehicle on a two-column eleva-
tor.
Mount between chassis and cylinder casing,
the MOT. 545 device for sustainin g front part
engine.
TIGHTENING MOMENTS (daNm)
Wheels screws 7.5
C rankshaft pulley screw 2+68
0 ± 60
Te nsioning roller nut 5
R ight support screws 6.2
Hydro-elastic buffer nut 3.7
Dismo unt :
-r ight front wheel;
-r ight pendular suspension support;-
accessories belt ( for vehicles provided
with air conditioning and/or power steering; -alternator’s belt;
-cr ankshaft’s pulley or pulleys and their
hub ; -distribution casings.
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ENGINE E7J-26211
11 - 3
DISTRIBUTION SYSTEM
3
1
42
Cylinder head gasket
N
ecessary Special Tools
MOT 1202-01 Pliers for e lastic collars
MOT 1505 Belt te nsioning measurement device
MOT 484 Jackets clamping device Wrench for angle tightening
Wrench for “CLIC” collars
TIGHTENING MOMENTS ( daNm )
Te nsioning roller nut 5
Crankshaft pulley screw 2 + 68° ± 6°
Pendular suspension support screws 6.2
Hydro-elastic buffer nut 3.7
Wheels screws 7.5
C ylinder head screws ( see cylinder head tightening method)
DISMOUNTIN G
Place the vehicle on a two-columns eleva-
tor. Disc onnect the battery.
Dr ain the cooling circ uit by the radiator
lower part hose.
Dismount the distribution belt (see chap-
ter 11 “ D i s t ribution belt “)
Dismount t he air filter
Disconnect : - acceleration cable from the valve con-
trol lever; -valve position potentiometer connec-
tor (1);
-atmospheric pressure sensor connec-
tor (2);
-step-by-step engine connector( 3);
- temperature sensor connector ( 4)
from the inlet manifold .
Disconnect :
-induction coil connector ( 5);
-f uel hoses (supply/return);
- injectors connectors;
- spark plugs cables.
Dismount the three attachment screws of the
induction coil ( 6).
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19
19 - 25
COOLING - EXHAUST - TANKEngine suspension
TIGHTENING MOMENTS (daNm)
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GENERAL
30 - 11
30Braking system diagnostic
II. CONSTANT EFFECT AT BEHAVIOUR
EFFECTS
Brakes not accomplishing the required
b raking distance
Vibrating brakes
When braking, the vehicle ( front part)
is left/right deviating
Braking
Heating brakes POSSIBLE CAUSES
- Non-uniform worn brake linings (backing
off);
- Brake l inings slightly gr eased;
- Springs with modified characteristics.
- Brake disks with high wobbling;
- Inconstancy brake disks width;
- Particles abnormal deposit on brake disks
(oxidation between linings and disk).
- Front axle suspension, steering (to be
checked);
- Stuck piston;
- Tires – wear, inflation pressure;
- R igid duct narrowed (flattening).
- Stuck piston;
Automatic adjustment : hand brake cable very
tighten.
REMARK :
Automatic recovering is performed by
means of the brake pedal, if there is no ab-
no rm al t ensi on in the hand brake cable
when released (hand brake released).
- Return spring.
- Insufficient hydraulic stroke of the brake
pump, not allowing the return at rest of the
brake pump pistons ( brake pump remaining
under pressure);
- St uck pistons or hardly returning;
- R igid duct narrowed (flattening);
- Def ective adjustment of the hand brake
control.
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GENERAL
30 - 16
30
The influence of angles
The influence of different angles over the road behavior, stability and abnormal wear preventing
of the vehicles tires.
CAMBER
The exit from the tolerance field of the left or right wheel camber, may have as result:
- tires external or internal edge wear (excessive positive or negative camber);
- steerin g is deviating towards the camber angle is more pronounced (asymmetry ), a deviation
from the trajectory is taking place, which must be corrected by means of the steering wheel (the
pronounced wear on the tire in question is occurring);
CASTER
A larger difference of 1° between the right side caster and left side, may have as result:
- a deviation from the trajectory, which must be corrected by means of the steering wheel, the
abnormal tires wear (the pronounced wear on the tire in question is occurring), tough steering,
instability when turning.
PA R ALLELISM
This adjustment has little importance over the vehicle road behavior.
Anyhow, note the followings:
-a prominent closing may lead to tires external edges wear.
-a prominent opening may lead to tires interior edges wear.
DIMENSIONS UNDER CARRIAGE BODY
These are especially influencing the different angles of the steering geometry.
A vehicle, which has run a large amount of km, it will have under the carriage body, dimension s
smaller than a new vehicle. This is the reason why some vehicle manufacturers, are prescribing, when the checking is
done with empty vehicle, different under carriage body dimensions and their respective places
where these values must be taken. Other vehicle manufacturers are recommending the suspension
compression by means of special (specific) tools or loading repartition in different places.
These different procedures (as performing ways) have as final purpose, the cancellation of the
vehicle suspension lowering, which has driven an important number of Km, compared with its
initial condition.
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GENERAL
30 - 17
30Angles checking principle
PRELIMINARY CHECKING
Before starting the steering angles checking, it will be necessary to check the following points
and exclude the possible non-conformities.
1. Tires and rims checking, regarding: - type and dimension;
- inflating pressure;
- wear de gree.
2. Joints : - elastic bearings and bushings condition;
- ball joints clearance;
- bearing clearance;
- steering wheel column clearance.
3. Tires runout and axial runout (compensation is to be performed by means of the reading
instruments);
4. Dimensions symmetry under carriage body (suspension condition).
5. Manufacturer’s method : each vehicle manufactu rer is prescribing the checking conditions,
loading repartition on axles, under carriage body dimensions presentation.
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GENERAL
30 - 18
30Front axles checking and adjustment
THE SEQUENCE OF THE OPERATIONS
Due to the geometric c onception of the front axle, the modification of one of one-side
angles (camber, ball joint, parallelism) has no major impact on the val ue of other side
angles (caster being the one with higher i nfluence). The modifi cation of t hese angles does not occur during ve hicle exploitation, but only as a
consequence of a vehicle accident.
In order to check the front axle angles, it is important to observe the following sequence: - placing the vehicle on rotating plates;
- braked vehicle;
- suspension checking for placing the vehicle at its free height;
- ensuring that front wheels are such disposed for straight line driving;
- attachment of the optical devices on the vehicle, observing the manufacturer instructions.
RE PARTITION CHECKING AND ADJUSTMENT
Check the “X” dimension symmetry of the
connecting rods.
Reading of the “A” value on the scale.
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FRONT AX LES ELEMENTS
31
31 - 1
Chara cteristics
The front axle is composed of two joint half axles with independents wheels, designed for the
suspension type Mc.Pherson.
The joints of front half axle arm are done by means of an elastic bearing (chassis side) and by
means of a suspension ball joint (wheel side)
The transmission of the motion to the wheels is done by means of two planetary a xles, not
equal, with homocinetic tripod joints.
The wheel hub is assembled in the steering knuckle by means of a sealed bearing.
The brake disks a re ventilated.
TIGHTENING MOMENTS (daNm)
Wheel attachment screw 7.5
Suspension arm shaft nuts 10.5
Attachment nut of the ball joint screw 6.2
The nut of the attachment screw of the steering knuckle with the shock absorber 10.5
Transmissio n nut 28.0
Steering ball joint nut 4.0
Attachment anti roll bar screws 4.0
Connecting strap screws 2.7
Attachment screws of the suspension ball joint on the arm 7…..7.5
Attachment screws of the disk on the hub 1.4
Aux.connecting rod- assembled connecting rod end stop nut 5.0
Assembled connecting rod end- rack joint body 5.0
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