1980 SKODA 120 LSE set clock

primory
feed to the distributor coincides with
the connecting line of the
distributor centre
line ond the first cylinder
heod
bolt os
per
Fig.2.3l10. Secure the distributor in this pos-
ition by lightly tightenning the tie-bolt ond
remove the timing geor
cover from the cylinder
block. The used type of distributor is described
in Chopter 13.5.
Fig.2.3l10 -
Position of Distributor on Engine
-l - screw of primory power
feed
2 -
cylinder heod bolt
3 -
index line rnorking the position
of the
distributor ornr when cvlinder No. 1 f ires
24. Coot with oil the moting
surfoces of the
timing geor cover ond the cylinder
block, locote
the cover gosket
on the block,
oil the timing
choin ond the comshott worm geor.
Remove the
f lywheel powl
ond rotote the
cronkshoft through
360o so
os to bring tlre pistons
of the cylinders
No. 1 ond 4 to their TDC position
ogoin. This
position corresponds opproximotely
to the volve
geor position
when the cylinder No. 1 f ires (the
tips of the coms of
cylinder No. 1 ore turned
downword, owoy from
the engine). Lock the
cronkshoft in position by refitting ond tight-
ening the flywheel powl.
25. Turn
the distributor orm in the direction
of the
screw (1) in occordonce with Fig. 2.3110,
hold it down with the
finger in this position,
ond ref it the timing geor
cover on the cylinder
block. By sliding the worm geor
of the distribu-
tor drive into the comshoft worm geor,
the orm
is turned to coincide with the timing
mork for
cylinder No. 1
on the distributor housing. lf
there is no coincidence of the orm ond timing
mork, od just
the position
of the orm by
slightly
rototing the distributor.
lf the
misolignment of the distributor
ornr
ond the timinq
mork of the
cvlinder
No'1 is so greot
thot it connot be corrected
by rototing
the distributor, remove
the timing geor
cover,
rotote the distributor slightly ond repeot
the
entire procedure
of refitting the timing geor
cover. 26. Smeor the protruding
end of the cronk-
shoft ond the outer shoft end (stem)
of the
belt
pulley with oil, f
it the belt pulley,
the nespective
wosher, ond tighten the bolt. Bolt the
PumP
suction stroiner tothe cronkshoft centre beoring
ond use o spring
wosher under the bolt heod.
27. Bolt down the timing geor
cover using
spring woshers ond
cheese-heod bolts
(exclus-
ively) cnd f inolly fosten the timing geor
cover
in such o position
thot the contoct breoker
points open before the crronkshoft with
the con-
necting rod ond piston
hos ottoined the top
deod centre (TDC)
position (see
the lgnition
Timing Toble in Chopter 15.3).
For checking the ignition odvonce, on electric
power supply is required with o bulb connected
in o circuit with the distributor. this
circuit
being interrupted by the oction of the contoct
breoker. An odopted conventionol torch with o
metol
iocket con be
used with odvontoge for this
purpose. Remove the flywheel powl ond
set the re-
quired ignition odvonce by turning the cronk-
shoft with o screw'driver inserted into
the geor
ring ond propped ogoinst the cylinder block
f longe. Rotote the shof t onticlockwise o bit
more thon necessory ond
bock it off so os to
odiust the bocklosh of the timing geors
ond the
distributor drive geors.
oK 6ls
Fi9.2.3111- Lomp for Checking the Opening
of Contoct Breoker Points
-1 - torch complete with dry cell ond bulb
2 -
leod with olligotor clomp
3 -
botterv cell
4 -
torch coo
5 -
contoct spring
6 -
insuloting plote
7 -
electricol-contoct connection of the leod
with the
drv cell Con
using
torch.
the br
slowly
indico
A corr
is not
timing 28.L
beorin
Then f
while
oil sun
the thr
the tyl
see Cl.
shri n ks
of the
woter
move i
ively.
To Fit
Toppetr
25. r
remove
positior
sure thr
cylinder
cylinder nuts. F<
first bo
woteir p
oir clec
finol ti1
2.16.
Ploin
heod bo
which t
woshers
no wosl
heod bo
cy I i nder
the outs
hove to
of the rc
Tighte
broce or,
30. Sc
thermom
into the
cosing o
ofter ho
Use spri
thermost
cooted g
with the
with the
The th
should br
34

t3.tt-l
3, I 5
I 2.
Remove the clomping
bolt from the brocket
ond lift owoy the motor.
3. Remove the other clomping
bolt from the
motor, lift owoy the stotor ond the
brush
springs, ond push
out the brushes. The
other
motor ports
connot be dissosembled.
Reossembly of Motor ond lmpeller
1. lnstoll the stotor with the slot focing
the
bosses on the frome ond with its index line
focing the line on the frome,
ond fosten
the
ports with screws ond woshers.
2. Instoll the brushes ond brush springs,
suitobly orch the brush cobles so
thot they do
not obstruct the movement of the brushes ond
so thot they connot
couse o short-circuit.
3. Top the stotor lightly with o soft
mollet
to settle it in
the beorings, ond lubricote
the
beorings. 4. Connect the motor to the power
supply
ond test briefly its running ond direction
of
rototion. lf it rototes in the opposite direction,
rotote the frome
ossembly through 180'.
5. Remove the clomping bolt of the motor on
the terminol boord side, instoll the motor in
the brocket, ond lock it in position
with the
bolt ond wosher.
6. Fit the spring on the motor shoft,
support
the shoft
to ovoid domoging the beorings, ond
press-on the impeller. The cleoronce between
the impeller circumference ond the brocket
must be smoll,
obout 1.5 to 2
mm. Lock the im-
peller in position
by pressing -
on the lock ring
- ogoin the motor shoft
must be supported.
7. Close the motor beoring from obove by
fitting the cover.
13.14 WINDSCREEN WASHER
Technicol Description
The windscreen wosher is o unit comprising
o reservoir, o pump
with motor, o distributor
volve,two nozzles, ond the connecting pipeline.
Windscreen wosher type MEZ MM 2004
Roted voltoge
Roted input .
Pump dischorge,
minimum .
12 volts
. 50 wotts
. 15 c. c. ot o pressure
of 10 MPo
(1 kg/cme)
Fitting, Removol, ond
Adiustment
The reservoir is held in
its ploce
by o cover
bond secured by copscrews with flot woshers.
The motor with pump
is bolted down, using
flot woshers under the copscrews. The suction
bronch socket is smooth, thot of
the dischorge Fig.
13.1a11- Windscreen Wosher
1 -
Reservoir, 2-
Sproying nozzles, 3- Motor
with pump
bronch reinforced with o collor; the positive
pole is connected to the suction side, the
negotive pole
to the dischorge side
(when
viewing the cor from the front, suction is
on
the right-hond side, the dischorge on the left"
hond side).
The distributor volve
is fostened by o cop-
screw, the distribution pipeline
being simply
fitted on it. The nozzles (heods
with nozzles) ore se-
cured in position
by pressing
them down from
obove into bushings
inserted into the cor body
by their necks. To
odjust the required direction
of the woter streom,
turn the nozzles to
the
respective ongle using o needle inserted into
the nozzle hole.
Fil!ing the Reservoir Open the reservoir by turning its
cop onti-
clockwise. In
summer, fill it with woter or
o mix-
ture of woter ond one of the odditives for
wind-
screen woshers ovoiloble on the morket, ond in
winter exclusivelywith on ontifreeze of o brond
intended speciolly for windscreen woshers -
never use on ontif reeze
intended for motor
vehicle cooling systems. Be coreful if
the body finish is touched up
with other thon boking enomel. Additives in
the woter ond other
liquids, usuolly contoining
spirit, ore opt to leove
unremovoble spots on
the enomel. Use only woter when testing the
windscreen wosher.
13.15 INSTRUMENT
PANEL
Technicol Description
The instrument ponel
contoins oll meosuring
instruments ond indicotors recommended by
192

Fig.
15.3/8 -
Distributor Adiusting Elements
1 -
contoct holder, 2 -
rotor orm, 3- com,
4 -
distributor brocket, 5 -
distributor brocket
clomping bolt
Alwoys turn the engine clockwise to eliminote ony ploy
in the distributor drive geor
ond to
ovoid loosening of the bolt. To relieve the
com-
pression resistonce, it
is recommended to bock
off the sporking plugs.
b) Stroboscopic method:
When using this method, the volues of the
bosic ignition timing ond
the odvonce con-
trolled by the centrifugol timing control (for
its
diogrom refer to Chopter 13.5) should be odded
upwhile multiplying bytwo
the odded upvolues
occording to the diogrom. Any effect of the
vocuum control must be
eliminoted by discorr-
necting the respective hose (connecting
the
distributor vocuum unit with the corburettor).
The meosuring procedure
is indicoted by the
diognostic equipment itself.
To Adiust ldling Speed
Use the oir-correction screw (speed
cor-
rection screw). The speed decreoses when ro-
toting the screw clockwise ond increoses when
rototing it onticlockwise.
Adiust the idling speed in occordonce with
the tochometer ond within the limits specified
in the following porogroph "To
Adiust ldle
Run". The engine must be wormed-up
before
storting the odjusting procedure (see
olso the
following porogrophs) ond its ignition must be
in perfect
condition (distributor
contoct-breoker
points, sporking plug
electrodes, ond ignition
odvonce).
N o t e : For the bosic position
of the odiusting
screw refer to Chopter 2.19 - "Mointenonce
ond
Adiusting". Fig.
15.3/9 -
Air-correction Screw -
idling speed
correction screw
To Adiust ldle
Run
Acljust the contoct-breoker point
gop,
the gop
of the sporking plug
electrodes, ond
the ig-
nition odvonce. Then check
the
volve cleoronce
(if there is no cleoronce, odiust
the
volves),
cleon the oir intoke filter
element, ond moke
sure thot the occelerotor pedol link hos
the re'
quired free trovel -
see Chopter 12.2-
Use o needle to remove the plug
covering
the fost-idling screw
ond let the engine run ot
obout 2,000 r. p.
m. to ottoin on oil temperoture
of 70oC. Insert the probe
of the thermonreter
into the hole for the oil diPstick'
Now connect the
speed indicotor (tocho-
meter) ond the onolyzer of
corbon
.monoxide
(contoined in exhoust fumes). Use
the oir'cor-
iection screw (Fig.
15.3/9) to set the
speed
-r-?n
at 800 l;; t.
p. ni. cnd the fost-idling screw
(Fiq. 15.3/10) to odiust the
content of corbon
moioxide to 2*0.50/s or the oir-fuel proportion-
by-weight mixing rotio,
comporoble with
the
specif ied corbon monoxide content, to
1+.2 +$.t.
After about one minute of
the continued idle
running recheck the odiustment ond
correct it,
if necelsory. Close the hole
with the
fost-idling
screw by driving in o
new plug with
its bottom
outword.
Note: For the bosic position of
odiusting
screws refer to Chopter 2.19 - "Mointenonce
ond Adjustment".
To Lubricote Accelerotor Mechonism
Pour severol drops of oil into
the end of the
bowden coble tubing ond lubricote both
ioints
(on top ond below)- of the corburettor pull-rod
itself with obout one drop of oil. Then
depress
224