Filter
Top Products
Tractors,
Lawn
and
Garden
-
110
and
112
Engine
20
SM-2059-{Apr-67)
Cylinder
Head
and
Valves
-
Tecumseh
30-9
INSTALLATION
INSTALLING
VALVE
SPRINGS,
RETAINERS
INSTALLING
CYLINDER
HEAD
AND
KEEPER
PINS
Always
install
a
new
head
gasket
when
head
has
b
ee
n
removed
for
service.
This
will
assure
a
gas
tight
fit.
Fig.
23-lnstal/ing
Valve
Springs,
Reta
iners
and
Keeper
Pins
Place
valve
spring
and
retainer
in
valve
spring
chamber.
Install
valves
in
guides
working
them
back
and
forth
to
make
sure
they
slip
through
the
guides
easily.
Using
a
spring
compressor,
compress
the
springs
and
install
keeper
pins
in
hole
of
stem,
Figure
23.
TNSTALLING
BREATHER
M
fl'l
Fig.
25-Cyli
n
der
Head
Bolt
Tightening
Sequence
It
is
important
to
tighten
all
cylinder
head
bolts
with
an
even
pressure
and
in
their
correct
order,
Figure
25,
so
that
uneven
stresses
will
not
set
up
in
cylinder
wall
.
Refer
to
"Specifi-
cations,'
I
page
30-11,
for
proper
cylinder
head
bolt
torque.
Fig.
24-Breather
Ports
Tnstall
rubber
breather
tube
on
breather
as-
sembly.
Install
breather
assembly
on
cylinder
block
with
drain
holes
toward
the
base
of
the
engine.
Always
use
a
new
gasket.
Tighten
retain-
ing
screws
firmly.
Litho
in
U.S.A
.