fuel pump SKODA 120 LS 1980 Workshop Manual

ii
i ENGINE
Model
- for Skodo 105 S ond 105
L
- for Skodo 12o L
- for Skodo 120 LS
Type
Number of cylinders
Cylinder orrongement
Cooling
Swept volume
- Skodo 105 S ond 105 L
- Skodo 12O L ond
120 LS
Bore
- Skodo 105 S ond 105 L
- Skodo 120 L
ond 120 LS
Stroke
Compression rotio
- Skodo 105 S, 105 L ond 120 L
- Skodo 120 LS
Engine power
output to CSN ond DIN
- Skodo 105 S ond 105 L
- Skodo 12O L
- Skodo 120 LS
Moximum torque
- Skodo 105 S ond 105 L
- Skodo 120 L
- Skodo 120 LS
Fuel -
recommended octone number
- Skodo 105 S,
- Skodo 120 Ls
Corburettor type
Fuel lift pump
type
CLUTCH
Type
Control
GEARBOX
Type Speeds
Geor rotios -
1st-speed geor
2nd-speed geor
3rd-speed geor
4th-speed geor
reverse geor Skodo 742.10 Engine No/l
Skodo
742.12 Engine No/2
Skodo 742.12x Engine
No/9
four-stroke, spork-ignltion,
corburettor engine with overheod volves
4 in line
pump-circuloted ontifreeze,
thermostotic temperoture control
1,046 c. c.
1,174 c.c.
68 mm
72 mm
72 mm
8.5:1
9.5:1
33.9 kW (46
h. p.)
ot 4,800 r.
P. m.
38.3 kW (52
h. p.)
ot 5,(X)0 r. p.
m.
42.7 kW (58
h. p.)
ot 5,2(X) r. p.
m.
74.5 Nm ot 3,000 r.p.m.
85.2 Nm ot 3,000 r.p.m.
90.2 Nm ot 3,250 r.p.m.
90 minimum 95 minimumduol, twostoge, downdrought
nrodel JIKOV 32 EDSR
diophrogm pump, model
JIKOV MF
dry, single-plote, with direct
disengogement
hydroulic
with helicol
spur geas
4 forword ond 1 reverse, synchrolock on the
1st-, 2nd-,
3rd-, ond 4th-speed geors
3.8
2.12 1.41
0.96 3.27
105 L ond
12O L
18

ilil
ll
I
Z,l
spring woshers under the pump
fostening nuts.
36. lnstoll the oil filter -
see Oil Filter in
Chopter 15.3.
37. Bolt the brocket ond the reloy lever
of the
occelerotor linkoge to the intoke monifold, Use
spring woshers to lock the bolts in position.
38. Locote the corburettor gosket, sheet
guord, onother gosket,
the insuloting wosher,
ond o third gosket (oltogether
three goskets
of
the some type) on the intoke monifold inlet
socket, instoll the corburettor,
ond tighten
it
down with nuts.
On 105 ond 120 l- engines, the sheet guord
must be fitted to the intoke monifold inlet
socket with o throttling spider, while 120 LS
engines must hove the possoge
unobstructed.
39. Smeor the boll pins
of the linkoge
ond
corburettor lever with greose
contoining molyb-
denum disulphide
ond mount on them the oc-
celerotor link (tie-rod).
Hold the link in pliers
ond slip securing clips over the heods.
Hook o spring on the shonk of the reloy
link-
oge boll pin
ond on the rib of the forehousing
on the corburettor.
40. Screw down the vocuum
control pipe
on
the corburettor (using
double-sided seoling
rings) ond slip on the rubber
hose connecting
the pipe
with the distributor vocuum control
unit. Secure the pipe
by bending the clip under
the nut of the intoke ond exhoust monifold.
To Refit Alternotor
41. Attoch the olternotor
brocket to the side
of the cylinder block while putting
ploin
woshers under
the nuts. Mount the olternotor
holder together with the engine mounting lug
on the bolt of the timing geor
cover ond the
front lug of the cylinder block.
Use self-locking
nuts for the bolts f ostening the olternotor
holder. Lock
the lower bolt of the lug by meons
of o spring wosher
ond nut. Using onother bolt,
bolt together the lug ond the brocket. lnsert
the tie-bolt from
the side
of the lug, slip on
o ploin
wosher ond tighten the nut. Fit the
short-circuit strip on the bolt ond lock it in
o position
porollel
with the olternotor brocket
by screwing
down the respective nut with
o ploin
wosher.
42. Put the olternotor into the holder,
ttrreod
in the bolt, ond screw down the nut with o ploin
wosher without tightening. Without tightening
the self-locking
nut, bolt the strut into the
brocket on the cylinder heod. Swing the olter-
notor toword the engine, fit
the V-belt ond,
while tensioning it, connect the olternotor with
the strut using o bolt, spring wosher ond nut.
At the some time, tighten the nut of the bolt
holding down the olternotor
in the
holder ond
the nut of the bolt connecting the strut with
the holder. For the belt slock odiustment see
Chopter 15.3. 43.
Fosten the second
engine mounting lug
using nuts with spring woshers.
To Fit Cylinder Heod, Air
Cleoner,
ond Sporking Plugs
44. Fit the cylinder heod
with cemented.on
gosket on the cylinder block ofter hoving slip-
ped o seoling ring ond o wosher on eoch bolt,
the some os in the cose of the push-rod
cover.
In oddition, fit the fuel pipe
holder on the reor
bolt ond hold it down by slightly tightening the
nut.
45. Fit the oir cleoner in position
ond fosten
it to the corburettor with o bolt using o seoling
ring ond wosher. Put o spring wosher
under the
nut on the brocket
ond screw down the nut on
the bolt of the cover without ony wosher.
46. Threod the fuel hose through its holder
on the cylinder heod ond use clips to fosten it
to the corburettor ond pump.
Adiust the most
suitoble position of the hose by rototing
the
holder ond then tighten the nut.
47. Attoch hoses connecting the oir cleoner
with the corburettor ond the oil filler neck.
When preporing
the cc for driving in winter,
instoll the winter
oir-intoke tube (hose) -
for
detoiled instructions see Chopter 15.3 "Air
Cleoner -
Winter Operotion".
48. Screw in the sporking plugs
with seoling
iings ond fit the ignition cobles. For the re-
commended types of sporking plugs
see Chopter
13.7.
The outlet on the distributor cop morked with
o notch is intended for
the coble
to cylinder
No. 1. The
remoining outlets ore.to be counted
clockwise ond in direct
order from 1
to 4 ond
the cobles will be connected to sporking plugs
in the order of numbers cost on the cylinder
heod beside the recesses for sporking plugs.
Plug Screws ond Lubricotion
System
Accessories
49. Plug the oil sump with the conicol screw
plug with its
seoling ring. In the cose of on
engine without the oil cooler, plug
the oilwoy
on the timing geor
cover with o screw plug
with o seoling
ring, ond the oilwoy ot the reor
end of the cylinder block with o pressure
switch. lf the socket for screwing down the
pressure switch is missing, instoll o new socket
together with its respective seoling ring.
lf on oil cooler is provided,
hoses ond o press-
ure switch should be
connected to the oilwoys
occording to Chopter 11.9.
Put the oil dipstick
with the f itted rubber ring
in its ploce.
For the type of the dipstick see
Chopter 2.17.
50. Using spring
woshers with the bolts,
screw down the flywheel
guorcl
ofter removing
36

5. Use
the MP 1'105 puller
for removing
cylinder liners from the
block. Turn the centre
bolts of the
iig to expond
the
iig iows in the
cylinder liner (ot
the top flonge of the liner)
ond pull
out the liner by turning the vwench.
6. Before removing the comshoft, lift owoy
the volve toppets. lf o
removol of the cylinder
heod is not considered, releose
the boll pins
of
the rocker orms, lift cwoy the push
rods, remove
the si'de cover of the push
rods, ond withdrow
the volve toppets.
2.5 BRAKE TEST
AND ENGINE
LUBRICATION SYSTEM DIAGRAM
Broke Tcst In view of
the very specific chorocter of
the test, especiolly with
regord to the speciol
testing eguipment,we do not intend to describe
the test procedure, restricting ourselves to
men'
tioning only the moin volues which the test is
supposed to verify. Volues indicoted in the
diogroms ore oppli'
coble to o new engine or on engine ofter o top
overhoul, which hos been
correctly run'in
by
running for o period
of obout 50 hours (2,500
km
trovelled). lf the engine is tested under other
conditions, the meosured volues must opprooch
the diogrom volues conformobly with the mech-
onicol condition of the engine.
ln diogroms, peok
performonce
volues ore
indicoted os meosured in complionce with the
CSw (Czechoslovok
Stote Standords) ond DIN
,CsNr
kwrotN'
1{J
I
20
r5t0 (Deutsche
Ingenieur Normen), i.e. with
oll oc'
cessoires reducing the gross engine
horsepower
(woter pump,
olternotor, oir
cleoner, exhoust
silencer). The
effective horsepower con
vory
with respect to the diogrom volues
within
o toleronce limit of
minus 100/s.
Every engine ofter
o top overhoul or reploce'
ment of individuol ports
of the cronk mech'
onism hos to be run'in exoctly like o
new
engine. Do
not forget to
drow your
customer's
ottention to this foct!
'",ffi15
NM
300 t000 som
t/n{a
5000 l/rnrn csilr
kwuril'
50
i
ilii Fig.2.5l2
-
Power Output ond Fuel Consumption
Diogrom -
Skodo 120 L engine
1- 3 see Fig.2.5l1
5000 t/mrn
Fig.2.511- Power Output ond
Fuel Consttmption
Diogrom -
Skodo 150
S
engine
1 -
power output, 2 -
torque, 3 -
specif ic fuel
consumPtion
k/SAE: h. p.
(SAE) 1/min :
r.P.m. Fig.2.513
-
Power Output ond Fuel Cons
Diogrom -
Skodo 120
LS engine
I
38 1- 3 see
Fig.2.5l1

Technical
Description
Car Model 1976/1979 Carburettor type
and model
1979 onwards*
105
120 120 S
and 105 L
L
LS
Types of carburettors and
their functional elements according to
the,polex cdnparison table
or
their bore (in
millimetres) JlKOV32 EDSR
-
443751 290 1
00 JlKOV32 EDSR -
443751 292400
JrKOV32 EDSR -
443751 31 9 800 JlKOV32 EDSR -
443751 292500
J|KOV32 EDSR -
443751290000 J|KOVg2 EnFF -
443751 292600
to
;1
Car model 105S, 1O5L
itZOr- '
l2OLs:
Carburettor type and model Se.B
above
Elements of stage I and ll or in
common
Fge
1 2
1
2
t
2
Atomizer cone diameter
Main petrol jet
Main air jet
Pilot jet
Pilot air jet
Auxiliary pilot jet
Econostat petrol jet
Econostat mixture jet
Econostat air jet
Choke petrol jet
Choke air jet
diameter
Diaphragm control air valve
Pump by-pass orifice
Injector
Needle valve diameter
Suction connection diameter 21
105 170
50
140
60
95/85'70
90
4.5/5.5*
130 40/45*
50 1.5
1.2 22
1 12/1 10*
170 50
140
60
110
70 1 00/90*
4.5/5.5'
160 40/45*
50 22
23
'.112/110*
130/125*
170 50
140
1Orygo*
4.5/5.s*
.80
40/45*
22
120
160 45
1.5
1.2
1,5
1.2 23
125
160 45 160
45
60
Jo
70
1'to
70
50
Jo
*erF
or"fs?
,.w'1'
80
Acceleration pump
discharge
Float weight 2O t 1 gram 7 to 9 c.c.
per
1O strokes (1976-79)
6 to 8.$19f9 onwards)
Fuel level. Float Removed.'28mm t'1mm frEm bp
face
Moin System (Fig.
2.1gl1l
Both mixing chombers hove self-contoined
moin systems. Air is mixed with petrol
in the
emulsion tube ond the finol odiustment
of the
mixture tokes ploce
while it is corried off by
the oir flow with the throttle disc open.
ldle Run ond By-poss System
(Fis.2.19l2l
These ore token core of by two
circuits -
by
the idle run system in stoge I ond the ouxiliory
oir system in stoge ll. Both systems
ore con-
nected to the moin systems
of both stoges in
the zone
of the emulsion orifice
by the re-
spective elements terminoted by the odiustoble
idling screw ond fost-idling (ouxiltory
oir)
screw.
- Stoge
I incorporotes
the petrol
iet seporotor
for the prevention
of self-ignition. The
idling ori-
fice is interconnected with the mixing
chomber
by two by-poss bolts enobling
c smboth tron-
sition to the moin system,
ond o hole is pro-
vided in the mixing chomber to obviote
onyinterference
with the smooth flow ot o hlgtler
underpressure (vocuum).
.
ln stoge ll, the by-poss hole enhonces
o smooth ond continuous intgrconnection
of
both corburettor stoges.
Econostot or rich-mixture syste4
(Fig. 2.19/3)
This system enriches the
mixture in stoge I
ot higher engine lood (output).
lt operotes
outomoticolly occording to the
volue of under',
pressure in the otomizer ond
in dependence onf
the flow of oir sucked-in by
the engine.
Accelerqtion pumP
(Fig. 2.19i5)
This is o mechonicol, diophrogm-type
PumP
controlled by the throttle disc of
stoge
l. Fuel
sucked-in by the diophrogm from the floot
chomber posses
through o non'return boll
volve
to the iniector ond through the
by'poss orifice
bock into the floot chomber. At o sudden open-
ing of the throttle disc,
the moior part
of the
fuel poses
through the
iniector, ot
o slow
opening into the by-poss
without the oction
of the iniector.
60

Choke
-
Cold-storting Device (Fig.2.1916)
Bosicolly, the choke is o self-contoined cor-
burettor consisting of o fuel reservoir, o petrol
jet, on oir
iet, o
vocuum
controller, ond o throttle
volve. The
mixture is formed in the throttle
volve zone where it is sucked
out from under
the corburettor throttle
disc.
At increosing engine speed, the rising vocuum
moves the plunger
of the choke vocuum
control,
the holes in the plunger
overlop ond thus the
mixture is enriched outomoticclly. The driver
controls the richness
of the mixture by opening
or closing the choke throttle volve.
Auxiliory Devices
Vqcuum connection for the vocuum odvonce
control picks
up vocuum (the
underpressure)
obove the throttling disc of stoge
| (see
Fig.
2.1st4).
The suction connecticri is led out of the cor-
burettor lower flonge os o tube from
under the
throttle disc of stoge ll. The
suction prevents
o generotion
of vocuum (underpressure)
in the
Fi1.2.1914 -
Stoge
16 -
Ff oot
chomber cover, 17 -
Floot chomber
body, 18 -
Stoge ll
control, complete, 19 -
Dio-
phrogm spring, 20 -
Diophrogm, 21- Diophrogm
control oir volve -
stoge ll, 21A -
Diophrogm cronkcose
during idle
run ond it removes for
burning ony residues of unburnt
hydrocorbons
which hove got
into the cronkcose.
Fi1.2.1913 -
Econostot -
Rich-mixture System
13 -
Econostot oir
iet, 14 -
Econostot petrol
iet,
15 -
Econostot mixture
iet "2"
I Control Elements
control oir volve -
sttfge l, 22-
Vocuum con-
nection, 1 ST ond 2
ST -
Corburettor stoge I
ond ll i:lrFig.2.
23 -
Inier
pump, c(
Accelerc
venti ng
I
32 and 3
30 -
Chol
Choke vr
volve
CARBUR
AND RE'
Diogno
rect chec
reossemb
62

I
I
( 1. Excessir
- overfloc
o) leoky n
b) too higl
- incorrec
c) too lorg
d) too sm<
e) oir-ventl
2. lncorrecl
- engine
o) choked
chokedi ncorrec
defectiv
- errotic i
e) portiolly
f) folse oir
l ncorrec
too low
lncorrect i ncorrec
i ncorrec
c) choked
4- Poor occ
chokedleoky no
defectivr
Loss of p
stoge | |
choked ,
domoge<
i ncorrect
stoge | | mutuolly
ond ll in
Engine w
storti ng
choked <
low fuel
i ncorrect
( excessir
o) lf no nera
hold the
connecte
emergen(
Fi1.2.1917
-
Floot Adjusting by Bending
the Lip of the Floot Honger
10 mm in diometer between the gosket
ond the
floot). The lip must lightly
touch the spring-
looded boll in the needle volve. The lip must
not press -
in the boll
or move owoy from it.
The doshed lines show
the floot in its lower
position.
Petrol and Air
Jets
Cleon them by swilling
in petrol
ond blowing
though with compressed oir. When removing
them, note
their locotion to focilitote reinstol-
lotion in their proper ploces.
Volume Iniected by Accelerotion Pump
ond Pump Hondling
Fill the corburettor with fuel
ond operote the
corburettor lever 10 times through its full stroke
to iniet fuel. Operote the lever ot intervols
of
3 to 4 seconds
ond cotch the fuel into o grodu-
oted vessel. The
iniected omount should be 7
to 9. c. c. lf necessory,
deflect the injector so
thot the
iet of
fuel posses
directly through the
chomber ond does not flow down its
wolls.
When refitting the occelerotion pump
cover,
prelood the diophrogm by opening the throttle
disk of stoge I to its full
stroke before retight-
ening the cover copscrews.
To Adiust Throttle Discs
Turn over the corburettor
with the throttle
discs on top ond loosen the reguloting screws
in the flonge till
the throttle discs ore fully
closed. Ploce the indicotor MP 1-128
on the
flonge necr one of tlre throttle
discs ond force Fig.
2.19/8 -
Adjusting Throttle Discs Using
MP 1-120'lndicotor
it down till the pointer
of the diol indicotor
touches the disc. Zero the scole ond rotote the
reguloting (odiusting)
screw while forcing
down the indicotor till the throttle disc porti'
olly opens (3
mm from the edge of the throttle
disc) ond the indicotor reods 0.10 to 0.12 mm.
Proceed in
the some woy to odiust the other
throttle disc.
Setting ldle Run Adiusting Screws
After o dismontling, etc., set the screws in
their bosic positions
so thot the engine con
be
storted up ond be kept running.
o) Rotote the oir correction screw (Fig.
14.3/9)
four times through 180" to closed position.
b) Rotote the idle run odiusting screw (Fig.
15.3/10) five times through 180o
to closed
position.
Do not
tighten the screws forcefully in their
closed positions.
They must beor ogoinst their
seots iust lightly so
os not to foul them.
Testing the Operotion of Pilot Jet Seporotor
The pilot jet
operotes correctly if switching
on ond off of
the current fed to the seporotor
(by switching on the
ignition, etc.) is moni-
fested by oudible clicks. The seporotor closes
the pilot
iet when
the current is switched off
(switched off ignition).
Corburettor Defects ond Their
Removol
Notice: Turn your
ottention to the corburettor
ofter hoving oscertoined thot the
engine, fuel
supply, ond ignition operote correctly.
# b)
c)
d)
s) h)
3. o)
b)
o)
b)
c)
5.
o)
b)
;i
6.
o)
b)
c)
//"\
'//
\
/\\
-.--- rrr)
V,I rV
64

d)
e) f) choke
plunger
sticking in its
bottom
position storting worm engine
too high fuel level in floot chomber
incorrectly odiusted
idle run unstick
the plunger
or reploce it with
o new one
odjust the
floot
odiust idle
run correctlY
2.2O FUEL PUMP
Technicol DescriPtion
The model JIKOV MF 3407 fuel pump
is of
the diophrogm ond
lever type, controlled by the
round disc of the comshoft. The suction
motion
of the diophrogm is octuoted by the
lever, the
dischorge motion by the spring of
the dio-
phrogm. Fuel flows through o stroiner, o mud
trop, ond the suction volve to the delivery
volve. A priming lever is provided
for hond
priming of the fuel. The moving mechonism
is
lubricoted with oil
sploshed from the cylinder
block. Stroke of the driving disk 4
mm
Suction heod 1.5
mm
Deliveryheod. 2mm
Pump dischorge ot 2,000 strokes
per minute ond free outflowwithout
counter-pressure 30
ltrs/hr.
Mointenonce, Repoirs, Disossembly
ond Reossembly
For routine
mointenonce (cleoning
of the
mud-trop screen) see Chopter 15.3. After hoving
operoted the hond-priming lever lift it
till it
engoges sofely in its locked position.
ln the cose of o defect, inspect the diophrogm
ond check the volves for leokoge. After hoving
removed the pump
from the engine, remove the
mud trop, seporote the upper port
from the
lower port,
ond remove two screws, holding
down the thrust plote,
to lift owoy the volves.
Swill oll ports
in petrol
ond blow off with com'
pressed oir. Reploce domoged ports
with new
ones. lf necessory, remove the diophrogm from the
octuoting lever in
the lower port
of the fuel
pump (its
monufocturer recommends the dio-
phrogm to be reploced ofter obout 50,000 kilo-
rnetres with o new
one). Do not stretch the
spring of the diophrogm ond do not olter its
compression force chorocteristic in ony woy.
Do not forget to put
fibre pocking rings
underthe
volves
when reossembling the
fuel
PumP.
Put o spocer ring under the suction volve (close
to the mud trop). Fig.2.2Ol1 shows
the pos-
itions of volves ond the holding-down thrust
plote. Put the spring
of the diophrogm into
the
lower port
oi the pump
ond engoge the pin
ot
the diophrogm with the octuoting lever. Oper-
ote the hond lever
to compress the dioPhrogm
oncl hold it in position by inserting o
rod of 4.5
to 5 mm diorneter (for
exomple the
shonk of
o drill, etc.) between the octuoting lever
ond
the woll of the pump
lower
Port.
Now bolt both pump
ports
together so thot
the mud trop is on the
right-hond side when
viewing the pump from obove
ond the fostening
flonge from the front. Use spring
woshers
under the clomping bolts.
Fig.2.2011 -
Section Through
Fuel Pump
lf it is necessory to verify
the dischorge of
the pump
by o test, note the following require'
mentswhich the pump
must meet otl80strokes
per minute:
o) 15 ltrs/hr. ot f ree outf low without
fuel
counterpressure
b) minimum pressure
of 0.018 MPo (1.8
m of
woter column) ot
o zero off'toke of fuel
c) o dry pump
must drow fuel from o
depth of
1.5 m in 16 seconds.
Fuel Pump Defects ond Their Removol
1. Foulty fuel
supply
o) clogged mud trop
b) domoged diophrogm
2. Fuel pump
does not hold fuel
o) dirty or defective volves cleon it
reploce it
with o new one
wosh them in petrol,
reploce defective
volves with new ones
66

12.6-12.f
2. Proceeding fronr below, rernove
the fuel
tonk sheet guord
ond the guord
of the cooling
woter pipes.
3. Disconnect the pipe
of the clutclr hydroulic
line from the clutch releose hose brocket.
4. Screw out droin plugs
to droin fuel from
the fuel tonk ond ot the some time disconnect
the fuel hose from
the fuel pump.
After com-
pleting the droining, reinstoll the droin plugs
(screws) with their seoling rings.
Disconnect the tronsverse hose connecting
both sections of the fuel tonk ond stop the
open
pipes with rrubber
plugs (to prevent
the remoin-
ing fuel spilling over your
honds ond clothes
when lifting
the tonk owoy).
5. Disconnect the geor
shift link ond the
speedometer drive from the georbox -
see Chop-
ter 4.1, por.9.
6. Detoch cobles from the hond broke rocker
ond pull
them out from under the cor -
see
Chopter 9.8. 7. Droin the cooling system -
see Chopter
-15.13.
Disconnect the moin woter line in
the
rniddle of the cor. Disconnect the pipes
from
the engine (from
the hose of the thermostot
ond the pump
connecting hose) ond remove
the
pipes -
see Chopter 11.4.
8. Disconnect the hose of the fuel
tonk from
the fuel filling pipe, ond, in the upper port,
the
hose of the fuel filling line vent pipe.
9. Sever the electric connection of the fuel
level gouge
floot system under tlre right-hond
I eor seot.
10. Use o
iock to support
tl're georbox
ond
loosen tlre connection of the georbox
cross
beorer with the bodywork.
11. Loosen the copscrews fostening the fuel
tonk to the bodywork ond lower the
iock to tip
the power
pock.
Retoin the fuel tonk while ne-
nroving the copscrews, move the tonk bock-
words ond down, tip it down ond forword, ond
remove it in
this direction. 12. Should
the pipes
of the broke system ob-
struct tlre removol of the tonk, disconnet them
from the finol drive ond from broke hose brock-
ets.
Refitting Fuel Tqnk in Cor
Reverse the procedure
of the tonk removol.
Fill the cooling system with the recommended
coolont ond bleed it, odjust the hond-broke ond
the occelerotor cobles. Bleed the clutch hy-
droulic line
ond olso the reor wheel brokes if
the hydroulic broke line hos
been disconnected.
Tighten properly
oll joints
ond connections,
fosten the cobles, links, ond pipes
obsenving
their correct orrongement -
see Chapter 12.7.
Fuel Line ond lts Accessories
Filling pipe.
This is q
sheet -
metol tube ot-
toclred to
the hose on the fuel tonk by meons
of o clip, ond to
the bodywork by two holders
with o copscrew ond both o spring ond o ploin
wosher. lt posses
througlr o bushing in the side
of the bodywork. Venting line. The hose is ottoched to the fuel
tonk filler neck in the upper port
of the tonk
ond to the filling pipe
by meons
of clips. For
its possoge
through the bodywork stiffener,
see Fig. 12.714. For clips ond their tightening see
Fig. 11.4/1.
The oir-feed hose
is slipped on the filling
pipe outlet ot
the fuel tonk neck; its
loop is
inserted under the domping lining of the body-
work, ond its other end is inserted into the hole
of the filling pipe
socket bushing.
Filler neck cop -
see Chopter 1.5.
Fuel gouge -
see fuel reserve signolling
switch, Chopter 13.17.
12.7 ARRANGEMENT
OF PIPELINES, LINKS,
AND CABLES UNDER THE
CAR
The routing, fostening, etc., of pipelines,
links, ond cobles is described in
chopters deol-
ing with these ports.
They oll leove the floor
tunnel under tlre fuel tonk to
be covered by
o guold
held in position
by self-locking nuts
with ploin
woshers. The following
illustrotions
show their correct orrongement which hos to
be mointoined if incorrect function or domoge
is to be prevented.
lt is imperotive to ensure
free movement ond swing
of the geor
shift
link.
Secure the correct position
of oll ports
under
the fuel tonk by clips which hove
to be pro-
vided with sleeves preventing
domoge to Bow-
den tubings, etc. The overoll orrongement is
shown in
Fig. 12.712 ond 12.713.
Fig.
12.611- Fuel Tonk Droin
Plugs
164

the
pipes) The
greoter portion of
the f illing
will 'flow
out through the
outlets ond
this will
suffice in the
event of
droining before dismon'
tling the engine.
3.-Uncouple the
hoses from
the engine line
in the engine boy -
See Fi1.15.131A. Proceeding
from und6r the vehicle, pull
the hoses
behind
the cross beorer of
the georbox,
ond let the
liquid flow
from the hoses.
4. Remove the
droin plug of
the cylinder
block ond, if necessory, free
the out'f low using
o length of wire,
etc.
N ot e : In oll, obout 85 0/0
(10.5 litres) of the
coolont will f low out,
ond the difference should
be reckoned with when
refilling the
system-
All ontifreezes ore
to o certoin extent hormful
to the skin. lt is therefore necessory to
protect
oneself qgoinst
contoct with
the liquid, es-
peciolly the eyes (do not touch them
with Fig.15.13/4
-
Heoter Line on
Engine
ond Droin Plug
1 -
droin plug
2 *
pump ond heoter connecting line
3 -
thermostot ond
heoter connecting lirre
fingers soilded witlr
the liquid). Wosh
ony
stolns off the skin os quickly os possible with
soop woter etc.
Rinse the stoins off
the vor-
nished cor bodY with woter.
Fridex-Spolqno Antifreeze
As clreody mentioned, the cooling system is
f illed with this liquid,
or with o solution
of its
concent'rote with
soft
woter, in the
foctory.
For the preporotion of this solution
olw.oys
use soft ond cleon woter. In the following
toble,
its concentrotion in
dependence on
its freezing
resistonce is indicoted. Alternotively, the
con-
centrotion con be determined from
the density.
Fig.15.1312 -
Cooling System
Bleed Cock
Fig.-15.13/3 -
Fuel Tonk
Droin Guord
Sheet ond
PiPe
Plugs Densit
I ot
+20'
I
i
-- I 1.029
; t.oqs I 1.055 1.O57
1.062
| 1.067
I
i 1.074
i 1.080
I
Volume
Ports
Fridex Spolono
i Woter
21 1
38 1
44 47
I
53 -1,5 ity
ot +20 oCFreezi
ng
point "C
-10 -20
-25
-27
-30
-35
-40 -45
-60
79
2
62 '1,5
56 53 1
47 4I
232