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46
VALVE GEARING
Tappet
clearance
(fig. 31)
After
the
first 500 --:--
1000
km (300 --:--
600
miles a.
)
and
later
on every 3000 km
(2000
miles
a.) or any
time valve operation
is
too
noisy,
tappet
clearan-
ce should be checked.
This adjustment is made by
a
cold
engine
with
the piston at
TOC
exactly
at the
end of its
com-
pression stroke (valves
fully
clo
sed)
.
After removing the
head
cover,
operate as
fol-
lows:
Slacken nut
"
A".
2
Screw
in or out the adjuster screw "
8
,,
until
the following clearances are obta ined;
•
inlet and
exhaust
valve: mm 0,22 (.0086")
.
Use
a
feelet'
gauge
" C"
to
cne
ck
clEarance.
In
case
of
hig
her
clearance
,
there will be noisy
valve op
erati
on;
while in case
of
lower clearance
the
va
lves
do not close fully causing inconve-
niences such as:
..
compression
loss
;
,.
engine
overheating
;
II
valve burning
.
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