Alternoting
cylinder No. 1
cylinder No.3
cylinder No.4
cylinder No. 2 Adjust cleoronce
on
cylinder No.4
cylinder No.2
cylinder No. 1
cylinder No.3
Fi1.2.1312
-
Volve Cleoronce Adjustment link from the choin
front side ond fit the clip
from the reor with its open end pointing in
the
direction opposite to the choin movement.
Before storting work on the volve geor,
re-
move the oil sump (engine
bottom cover to
which the timing geor
cover is bolted, the suc-
tion stroiner being ottoched to the cronkshoft
centre beoring cover) ond lock
the cronkshoft
in position
in the oxiol direction by depressing
the clutch pedol,
if removol of the entire engine
is not intended for onother purpose.
For speciol
points of the removol refer to
Chopter 2.4.
2.14 WATER PUMP
Disossembly 1. Unlock the wosher of the belt pulley
nut,
remove the nut ond pull
off the belt pulley
using
the MP 1-120 puller (o
fixturre for
Skodo MB 1000
cors) or o universol puller,
for the bolts of which
it is necessory to
cut threods M 8 in the belt
pulley holes.
By pulling
off the belt pulley,
occess will be
goined to the nuts fostening the pump
to the
engine. The some procedure
holds good
when
dismontling the pump
ofter it hos been removed
from the engine.
2. Withdrow the keyfrom
the shoft ond, using
the drift MP 1-121, drive
or press
out the shoft.
Then lift owoy the
housing plote
from the
seoting foce of the pump.
3. Remove the circlip locking the outer boll
beoring in position.
Proceeding from the reor
side of the pump
housing, drive out the boll
beorings with their spocer tube, ond remove
the
rubber seoling rring
from the housing.
Reossembly 1. Smeor the rubber seoling ring with greose
ond insert it into the pump
housing.
Use the
MP 1-123 drift to drive home the inner boll
beoring (without
sheet guord) pocked
with
greose. When opplying the drift,
fit its guide
ring into the bore for the
oute,r boll beoring.
2. Fit the gosket
on the pump
seoting foce
ond ploce
the pump plote
with its cemented-on
gosket (focing outwords from the pump)
over it.
Fosten the plote
to the pump provisionolly
with
one bolt to prevent
the gosket
from being dom-
oged during the following ossembly
iobs.
Insert the rubber seol,
wosher, ond conicol
spring into the speciol (bokelite)
seoling ring
of the pocking glond.
Instoll the spring
with
its nose
into the hole in
the bokelite pocking.
Slip the ossembled pocking glond
on the shoft
with the spring toword the shoft geor,
ond drive
the shoft home into the pump
beoring, while
supporting the beoring with the MP 1-123 drift. Fig.2
4. Fit t
shoft ond
stolling th
in positior
it with gre
sheet guor
5. Top
t
lieve the r
@@@@
DK 1240
Fig.2.1313 -
Volve Arrongement in Cylinderr Heod
Block disks -
exhoust volves
White disks -
intoke volves
Timing Choin ond Timing
Geors
Modified chain and gears
fitted since October
1979 recognised by
squared gearteeth
and chain
with split rollers.
The timing choin hos no slock odiuster (ten-
sioner). A slock choin does not substontiolly
offect the volve geor
occurocy but its operotion
is noisy. Therefore
its correct length should
be
ensured either
o) by selecting o suitoble choin from o number
of choins ovoiloble -
try it on the timing
geors, o1r
b) by replocing the stondord comshoft geor
with on oversize geor
(with greoter
toler-
onces). The comshoft geors
ore groded
in
keeping with their progressive
size (tol-
eronces) into closses A, B ond C. With the
exception of
closs A, the closs morking
letters ore stomped next
to the punch
mork.
For trying, the choin con be disconnected
to ovoid removing ond refitting of the timing
geors. To recouple the choin, insert the coupling Fig.2.1t
52
