2004 DACIA SUPERNOVA AUX

ENGINE E7J-A-2/6010
10 - 2
ENGINE AND LOWER ENGINE UNITS
MOTOR-PROPELLING GROUP
Di smounting and re -mounting the motor-propelling group i s done at the upper pa rt of the
engine compart ment by means of a moving lift ing device. C
OUPLES FO R S
CRE W-FIXING (daNm)
Screws for fixing right-side stand on engine 6,2
Hydro- elastic buffer attachment nut 3,7
Screw-nut for left-side elastic buffer 6,2
Wheel sc rews 7,5
Screws for fixing motor-propelling group-battery stand 2,1
Screw-nut for fixing small connecting rod on steering traverse 6,2
Screw for fixing anti-swing connecting rod on gearbox case 10,5
Control bars attachment screw on gearbox connecting rods 2,7
Car is placed on a lift-stand with two columns;
The fol lowing are taken down: battery, air-
filter case, engine bonnet, front wheels; Oxygen probe connector is taken off;
Dismantle: therm ic protection screen, cata-
lytic convert er on the exhaust collector;
DIS M O UNT ING
The fol lowing are eva cuated:
-the cooling circuit at the bottom par t
of the radiator ;
-the oil in the gearbox ;
-the oil in the engine, if necessary.
The fol lowi ng are ta ken dow n: -engine shield;
-the screws that fasten the catalyti c
converter on the stand;
-the pipe-collar between the catalyti c
converter and the trigger ;
-the catalytic converter;
-the anti-swing auxiliary connectin g
rod.
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ENGINE E7J-A-2/6010
10 - 4
ENGINE AND LOWER ENGINE UNITS
The following are uncoupled:-the end of acceleration cable 1 from
the command lever of t he clapper; it is then
extracted off m uff 2 in the stand;
-the mileage cable: the two clamps are
pressed, and the cable is extra cted; -t he ri ght -si de he a dlight adjust m ent
cable, which is then positioned by the car
bodywork;
-the l inking pipes c oming from t he c arbon
canister and the canister-draining valve; -the fue l supply pi pes (both t he going- and
the re turn one) from the i njection ra mp, by
using MOT.1311-06 ;
The scre w linking the gear- bar and t he
auxiliary connecting rod to the gearbox is
dismantled.
MOTOR-PROPELLING GROUP
-the hydra ulic command con duit of the
clutch; fastener 1 is taken out and supply pipe
2 is withdrawn in the dire ction shown by the
arrow.
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ENGINE E7J-A-2/6010
10 - 37
ENGINE AND LOWER ENGINE UNITS
TIG H TENING CO UPL E S (daNm)
Screws for fixing at front of motor-propelling frame 6.2
Screws for fixing at back of motor-propelling fram 10.2
Lower crankcase screws 1
Screws for fixing steering wheel lower axis 1.4
Screws of wheel 7.5
Screw of the ball-and-socket joint 5.5
Screw-nut of the steering ball-and-socket joint 3.5
Screw for fixing anti-swing auxiliary connecting rod (on frame) 6.2
Screw for fixing anti-swing auxiliary connecting rod (on gearbox) 10.5
D
IS M O UNT ING
The c ar i s placed on a l ifting stand with
two columns; The battery i s disconnected;
The engine is emptied of oil;
The engine-shield is taken apart ;
To take apart :
-front wheels;
-screw-nut for fixing the lower steer-
ing wheel axis on the pinion of t he steer-
ing case; -the steering ball-and-socket joints
and the arm ball-and-socket joints; -side clearance devices;
-thermic protection screen;
-catalytic convert er;
-front bumper ba r;
-anti-swing auxiliary connecting rod.
The screws for fixing the motor-propelling
s et fra me are taken a part, and the frame is
lowered; The lower c rankcase is taken apart.
R
E-MOUNT ING
The lower c rankcase is cleaned.
A ca. 3 mm-thick girdl e of RHODERSEAL
5661 is applied, as in the adjoining drawing. Do not forget to replace the two cres-
cent-sha ped fitti ngs at the e nds of the
crankcase.
Mind that the relative displacement be-
tween the lower crankcase and the cylin-
d er crankcase, along the gearbox-assem-
b ly surface, should not exceed 0.3 mm.
LOWER CRANKCASE MOUNTED ON THE CAR
LOWER CRANKCASE
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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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31
FRONT BEARING ELEMENTS
31 - 1
CHARACTERISTICS
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 bear ing (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 axles, not
equal, with homocinetic tripod joints.
The wheel hub is assembled in the steering knuckle by means of a preset and sealed
bearing. The brake disks are aerated.
Tigh tening moments (daNm)
Wheel attachment screw 7,5
Suspension arm shaft nuts 7,5
Attachment nut of the ball joint screw 5,5
The nut of the attachment screw of the steering
knuckle with the shock absorber 7,5
Transmissio n nut 21,0
Steering ball joint nut 4,0
The attachment anti roll bar nut 2,5
The connecting strap screw 2,7
The attachment screw of the suspension ball joint on the arm 7,5
The attachment screws of the disk on the hub 2,5
Aux.connecting rod- assembled connecting rod end stop nut 5,0
Assembled connecting rod end- rack joind body 5,0
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REAR BEARING ELEMENTS
BRAKE SHOES
Di smount the a uxiliary connecting rod (B)
connection from the adjustment lever (C).
Bring the adjustment lever in the initial
position. Rot a t e t he c om pre ssi on sh oe wi t h 90
degrees. Dismount the lower spring.
Remove the (front) compression shoe, then
the tensioning one. REMOUNTING
Pe rform in re verse order t he dismounting
operations.
NOTE
The adjustment of the device for the
automa tic clearance taking over, is
depending of the sp ring tensio ning
caught be tween the rear shoe and the
auxiliary connecting rod.
Measure the value H=1mm, between the
auxiliary connecting rod and the front shoe.
If the va lue H is not c orrect, replace t he
auxiliary connecting rod spring and the
shoes return springs.
33 - 11
C
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36
STEERING ASSEMBLY
36 - 1
AXI
AL BALL JOINT
The steering mechanism is rack - and - gear drive type, unattended.
The steering mechanism is composed of: steering wheel, steering column, steering box, and
steering auxiliary connecting rods.
The diameter of the maximum turning circle: - between walls: 10m
The steering wheel number of rotations: 4.26
Of multiplication: 21:1.
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36
STEERING ASSEMBLY
36 - 3
S
TEERING BOX
DISMOUNTING
Loosen the screws of the wheel;
Lift the front part of the vehicle;
Dismount the wheel;
Di smount t he ba ll joints of the steering
auxiliary connecting rods. Di
smount the attachment scre w of the
steering wheel shaft (1) from the steering box.
Dismount the steering box attachment screws (2) on the cross member.
Dismount the steering box together with the steering auxiliary connecting rods.
NOTE
Do n ot ever dismount the axial ball joints from the rack, unless they need to be
replaced.
REMOUNTING
Perform the dismounting operations in the reverse order:
Grease the joints with special grease containing MoS2.
Check the condition and the attachment of the protection bellows.
Tighten at the required moment the nuts of the steering auxiliary connecting rod - in the case
of the dismounting of an auxiliary connecting rod. Mount the steering box and the auxiliary connecting rods assembly, on the vehicle.
Check the parallelism.
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