I
s
CYLINDER
HEAD
I
Fig.
27.
-
Reference
marks
‘
on
timing
sprockets.
Engine
efficiency
drops
if
valve
seats
are
scored,
pitted
or
burned,
preventing
proper
vaive
seating.
Should
this
trouble
occur,
remove
cylinder
head
and
reface
valve
t
R
sea
s.
eplace
valves
if
necessary.
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Fig.
28.
-
Ignition
timing
reference
marks.
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v-
At
the
same
time,
decarbonize
the
compression
chambers
and
piston
tops.
4
When
reinstalling
the
cylinder
head
tighten
to
a
9
kgm
(65,087
ft/tbs)
torque
the
hold-down
nuts
in
criss-cross
sequence,
starting
from
the
center
nuts.
lGNiTiON
TIMING
No
timing
is
required
if
the
distributor
is
removed
and
reinstailed
without
disturbing
the
crankshaft.
instead,
if
the
crankshaft
has
been
rotated
ignition
must
be
re-timed
as
ioliows:
—-
Check
that
distributor
contacts
gap
is
as
specified
(see
page
36).
—
Bring
mark
PMS
1-4
on
flywheel
to
coincide
with
the
reference
index
(fig.
28A)
or
bring
the
notch
on
pulley
edge
in
line
with
the
reference
mark
on
cover
(fig.
28B).
—--
Check
which
of
the
two
cylinders,
1
or
4,
is
in
the
compression
stroke
(both
valves
closed)
and
rotate
the
distributor
rotor
con-'
tact
on
the
contact
for
firing
in
said
cylinder.
>'
-
Next,
insert
the
distributor
in
its
seat.
»
..
"
-~
Before
tightening
the
distributor
locking
nut
(4,
fig.
25)
check
that
contacts
are
about to
part.
r
Fig.
29.
-
Steering
controi
A
Tlttillfti
mark
on
ilywlierzl
-
B.
Thrill‘:-rj]
mark
on
wiinlaslisrtl
|7lr!|i-y,
‘
_
,
38
Ms-¢n=».-,--_r..-,..~._~_..,.._-.,.,,
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,_,¢--,-__.-.
.
...-sefi-i~?=¢~¢:.:.<.:.--+s_
.....»-W-,-,-_'———~'~
—-~_-—-------~
adjustment
screw
_
39
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