Datsun 1300 - Page 17

Section of
Cylinder
Head
Showing
Exhaust and Inlet Valve
and Rocker
PivOt and Seat
Assembly
Removed
before
movmg
It forward and out of
the
engme
compartment
NOTE
For
both Li3 and Li6
engl les
It wLll be
necessary
to use Tool
No
ST490i
0000 to
remove
the
special
headed
c vlmder
head
sewrmg
bolts
24 Remove
and discard
the
cylmder
hedd
gasket
NOTE
Do not
rotate
the
crankshaft
while
the
timing
cham
IS
wedged by
the
support
tool
InstallatIOn
IS a reversal of
the removal
procedure
with
particular
attention to
the
folloWIng
pOInts
Use new
gaskets throughout
Smear both
sides
of
the
cylinder
head
gasket
With an
approved grade
of
JomtIng
compound
before
mstaltIng
the
oylmd h
d
1
7
EJ
IMPORTANT
it IS
essentzal when
installing
the c
head to make sure
that
the
valves
are clear
of
the
p
crowns
If
the
cylznder
head
IS
mstalled
with
the
camshaft
In Its
ongmal
positIOn
I e when the cham
sprocket
was removed
pnor
to
head
removal
then
the
posslbllzty
of
the
val
contactmg
the
pistons
will
be ellmmated
Do
not rotate
the
camshaft
untzl the
tzmmg
cham and
sprocket
have been Installed
on the
camshaft
and thecham
support
tool removed
Use
gUIde
studs
screwed
mto
dIagonal
holes at
opposite
ends of
the block face
to
pOSll1on
both
the
cylinder
head
and
gasket
Instal
and
tighten
the
cylInder
head
bolts
evenly
and
progressIVely
In the order as shown In
the
IllustratIOn to
the
specified torque
see
Speclfical1ons
Check
and
adjust
the
rocker
arm
to
valve
stem
slearance
as
outlined m
TO
ADJUST VALVE
CLEARANCE sectIOn
Check and
adjust
the
cl1rburettor
Idling
mixture
and
engme Idling speed
as
necessary
Check for
engIne
011 or water leaks
TO
DISMANTLE
I
Remove the
cylinder
head
assembly
from
the
engine
as descnbed earlier
and
pJ
ace
on a
SUitable bench
2
Unclip
and
remove the
small
steady spnng
from
each rocker arm
3 Back
off
the
rocker
piVOt
locknuts and screw
the
piVOtS
down as
far
as
pOSSible
mto
the
cylinder
head
10
4 With a screwdnver
push
down
on each valv
s ru1g
and
manoeuvre
each rocker arm from
the
cylmder
he iid
I
Dunng
thiS
operation
take
care
that
the valve16
gke
If
guides
which
are located on
the
end of
the valve s e s
ar8 1
not
dislodged
and lost
91
fl
NOTE When
removmg
the rocker arms
ensure that
the
cam
heel
fof1he
rocker
arm
bemg
removed IS
adJ
e
to
ItS
r
o
J
I j
U
ii
1
to
r 1
tu t
i
4Y
1 r
L
jf
11
t
1
1 I7
t
J
i
r s
t
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t
17
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