height DACIA SUPERNOVA 2004 Repair Manual

VALUES AND SETTINGS
07DIMENSIONS , WEIGHTS
07 - 1
DIMENSIONS (mm)
Total length (B) 4030
Total width (G) 1640
Total height (H) * em pty 1395
* with lifted hatchback (H1) 1940
Wheel base (A) 2475
Front wheel track width (E) 1410
Rear wheel track width (F) 1345
Ground clearance (K) * loaded 134
Hatchback free height (Q) 925
Turning radius * Between footways 4950
* Between walls 5000WEIGHTS (kg)
Unloaded vehicle weight: * on the front axle 545
* on th e rear axle 405
* total 950
Maxi mum authorized load
* on the front axle 715
* on th e rear axle 670
* total 1385
Authorized payload 425
Load w ith trailer with own brake 815
Load w ith trailer without own brake 450
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VALUES AND SETTINGS
07C HECKING VALUES OF THE REAR AXLE ANGLES
07 - 10
ADJUSTMENTSNot adjustable
Not adjustable
REAR AXLE
POSITION
Rele ase
Rele ase
H4 - H5 = 20
VALUES
0
0 ... 00 30’
1 +/- 0,5 mm
ANGLES
CAMBER ( nega tive)
P ARALLELISM
( toe in )
TIGHTENING POSITION
OF TH E ELASTIC
BUSHINGS
For the values checking of the front axle angles, consequently the rear axle angles, the vehicle
must:
- to be placed with the wheels on the rotating plates ( of the bench ) being in horizontal plane;
- to ensure its braking;
- to check its suspension for vehicle setting at its free height;
- to compress its front axle at half loading ( by means of the compressing device DIR 500);
- to check its suspension for vehicle setting at its free position;
- steering brought at middle point and the steering box blocked in this position;
These op erations are followed by the optical device attachment on the vehicle, observing the
instructions of the steering angles checking bench manufacturer.
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ENGINE E7J-A-2/6010
10 - 10
ENGINE AND LOWER ENGINE UNITS
Combustion head height113 +/- 0,05 mm
Maximum distor tion of the plane of the fitting0,05 mm
No rectifi cation is authorized
Vo l u m e c h a m b e r s (with valves and spark plugs)26,25 cm3+/-0,6
Couple of spark plug tightening 2,5 - 3 daNm
VA L V E S
Diameter of base 7 mm
Angle of sealing face -intake 120
0
-exhaust 900
Diameter of platter
-intake 37,5+/-0,1 mm
-exhaust 33,5+/-0,1 mm
CHARASTERISTICS
C OMBUSTION HEAD
The combustion head is not restricted. Adjustment of rocker a rms is done only in cool
mode, and onl y when t here are engine interventions which have an i nfluence on their play. The adjustment values are:
-for intake: 0.10
-for exhaust: 0.25
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ENGINE E7J-A-2/6010
10 - 14
ENGINE AND LOWER ENGINE UNITS
BOLTS
Length (mm)60
Outer diameter (mm) 19
Inner diameter (mm) 11
CYLINDE R JACKETS
They are of the type: movable, wet.
The seal fitting is the type: rubbe r ring J.
Inner diameter (mm) 75,8
Jacket height(m m) H2 130
Centring diameter (m m) D 80,6
Extra height without a fi tting (mm)
X 0,02-0,09
Jacket height (m m) H1 91,5
Depth in the cylinder
crank-case K1 91,5+ 0 ,03
+ 0 ,035
+ 0 ,005
- 0 ,015
- 0 ,055
CH ARASTERISTICS
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ENGINE E7J-A-2/6010
10 - 25
ENGINE AND LOWER ENGINE UNITS
Re-Mounting
Cl e a n t he c ra nkc a se, e spe c ial ly t he
jacket-sealing part .
Preparation of the pi st o n- and-jacket set
The parts supplied in the collection are
matched. Do the line-up marking of the set, from
A to D, in orde r to keep the pa rts matched.
Remove completely the anti-rust fi lm;
never era se the parts.
These engines are equipped with rub-
ber rings for jacket watertight-sealing;
these rings ensure only watertight-seal-
ing condition. The jackets lean directly
against the cylinder cra nkcase; extra
height X is achieved by the manufac-
turer.
The checking-up of the jacket extra -
height is done in the fol lowing way: -the jackets a re pl ace din the block
without their sealing-ring;
-extra-h eight X is checked by
means of the MOT.251 and MOT.252-01
devices.
THE CYLINDER CRANKCASE
RE CO VERY ENGINE
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ENGINE E7J-A-2/6010
10 - 26
ENGINE AND LOWER ENGINE UNITS
RE-MOUNT ING
The jackets are positioned such a way as:
-the difference be tween two succes-
sive jackets should be max. 0.05 mm; -the extra-height should be placed i n
ascending order between cylinder s 1 and 4.
-the extra-height X must be within
0.02 mm and 0.09 mm;
-in case there is an erroneous extra -
height, it is c hecked a gain by means of a
new set of jackets in orde r to see whether
the cause is the block or the jacket; if not,
check the theore tical values of both the
block and the jackets. The A, B, C, D set is done over with
the correct extra -height obtained, then the
jackets, the bolts and the pistons are num-
bered from 1 to 4 (no. 1 towards the fly-
w heel), so that t he concorda nce with t he
corresponding connecting rods is found.
The axes of the pistons a re m ounted by
means of the MOT 574-22 device.
The axes of the pistons are fixed in the
rod, and loose in the pistons.
Check i f the axes of t he pistons slide
freely in the new corre sponding pistons.
The axis of piston E is mounted on the
mounting axis A.
The C centring device is screwed up to
the end and then unscrewed a quart er of a
rotation.
THE CYLINDER CRANKCASE
In order to heat the connecting rods an
electric range of 1 500 W is used.
RECO VERY ENGINE
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30
GENERAL
30 - 6
COMPOSITION AND DIMENSIONS OF THE MAIN BRAKING
SYSTEM ELEMENTS
Front brake
Brake caliper bore diameter F 54 mm
Aer ated bra ke disk diameter F 235 mm
The axial run out of the disk measured at Æ215 0,1 mm
Brake disk m aximum thickness 20 mm
Brake disk minimum thickness 19 mm
Braking pad thickness (support included) 14 mm
Minimal brake pad thickness (support included) 7 mm
R ear brake
Wheel braking cylinder bore diameter F 22 mm
Ne w drum diameter F 228 mm
Dr um diameter aft er grinding F 229 mm
Shoe braking lining width 40 mm
Braking lining thickness 5 mm
Minimal accepted braking lining height above rivets 0,5 mm
Master brake pump cylinder
Bore diameter 20,6 mm
Pump maximum stroke 32 mm
Brake fluid reservoir Without level alert sensor
Pressure limite r For parallel circuit
Ser vobrake master vac 7” 177,8 mm
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30
GENERAL
30 - 16
THE INFLUENCE OF THE FRONT AXLE ANGLES ON THE ROAD
BEHAVIOR (VEHICLE COMPORTMENT) AND ON TYRES WEAR
CAMBER ANGLE 0
0 +/- 30’
It is formed by the wheel plane with the vertical that crosses the wheel axis.
A difference higher that 1° between the two angles leads to :
- the deviation from the trajectory that must be adjusted by means of the steering wheel.
- abnormal wear of the tires and bearings.
The angle is not adjustable.
THE BALL JOINT ANGLE 12
045’ +/- 30’
It is formed in transversal plane between the axe connecting the attachment point of the
shock absorber with the ball joint center and the vert ical passing through the wheel axis.
The ba ll joint angle i s genera ting a ne gative offset, allowing the maintaining of the vehicle
route when the braking is unequal distributed. The angle is not adjustable.
THE CASTER ANGLE 2
030’
It is formed in longitudinal plane, between the axis connecting the attachment point of the shock
absorber with the suspension ball joint center and the vertical axis passing through the wheel axis. A difference higher than 1° between the two angles leads to : - the deviation from the trajectory that must be adjusted by means of the steering wheel.
- a normal wear of the tires.
The angle is not adjustable.
STEERING BOX POSITIONING
The steering box must be at a certain height from the attachment points of the steering auxiliary
connecting rod ball joints. The position of the steering box (choking) is influencing the variation
of the parallelism. The steering box is mounted in the position for which the variation is minimal.
The modification of t he para llelism between left side and right side leads to: - the deviation of the vehicle, in one sense, upon accelera ting;
- the deviation of the vehicle in the opposite side upon braking.
- the deviation of the tra jectory on the hilly ground;
- the premature wear of the tires.
The horizontally of the steering box is ensured by the producer.
PARALLELISM
( TOE-IN OR ANGULAR SPREAD ANGLE )
It is measured in horizontal plane as a differen ce between the front and rear part of the same axle wheels.
The wheels are divergent. The value of the opening is between 0 – 2 mm (1 +/- 1 m m).
ATTENTION:
A too much opening causes the wear of the tires on the inner pa rt of the camelback.
A too much closing causes the wear of the tires on the exterior part of the camelback.
The para llelism is adjustable by rotating the tie bar of the steering connecting rod.
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30
GENERAL
30 - 18
PRELIMINARY CHECKING
Due to the geometr ic conception of the front axle, the modificati on of one of one-
si de angles (castor, camber, ball joint) has no major impact on the value of other side
angles (the parallelism being the one directly influenced). The m odification of t hese a ngles doe s not oc cur duri ng vehicle exploitation, but onl y as
a consequence of a vehicle accident.
It is import ant to observe the following sequence : - placing the vehicle on rotating plates;
- braked vehicle
- suspension checking for pl acing the vehicle at its free height;
- establishing the steering centra l point and steeri ng box blocking.
- attachment of the optical devices on the vehicle, observing the manufacturer
instructions.
REPARTITION CHECKING AND ADJUSTMENT
Check the “ X” dimension symmetry of
the connecting rods.
Reading of t he “ A” value on the scale.
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30
GENERAL
30 - 21
DIAGNOSIS
THE DEVIATION TO THE LEFT OR TO RIGHT AT STABLE SPEED
Pe rform the preliminary checking:
Wheels (front, rear) : Joints clearance:
- pressure - bushings
- dimensions
- types Checking points heights
- balancing - simetri e
A.m.
conditions
are respected
Correct the defi cient
The deviation persists
Checking fi nished
Check the front axle
steering geometry
The deviationpersists
NO
YES
NO
YES
YES
Check the rear axle
parallelism and the alignmentA
Checking fi nished
NO
C HECKING OF THE FRONT AXLE ADJUSTMENT
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