Filter
Top Products
20
Engine
Tractors,
Lawn
and
Garden
-
110
and
112
10-4
Cylincler
Head
and
Valves
-
Kohler
SM
2059
(Apr-57)
R EPA
IR-Contlnued
It
is
not
necessary
to
remove
the
engine
from
the
tractor
when
servicing
the
cylinder
head
,
head
gasket,
muffler
,
breather
assembly,
valves
and
valve
seats.
[,11PORTA N T
On
fmc/ors
equipped
with
hy-
draulic
lift,
do
not
disconnect
the
h:o)draulic
lines.
Remol
.'e the
pump.
v
ali'e
andresen
)
oirunitfrom
fliP
top
of
the
engine
and
lower
it
to the
[(round
lu
itli
the
hydraulic
liilCS
still
attached.
This
PyO-
cedllve
at'
oids
the
possibility
of
dirt
entering
the
system.
Disconnect
choke
conduit
and
cable
at
car-
buretor
.
Remove
carburetor,
breather
assem-
bly,
hydraulic
lift
system
on
engine,
motor-
g
nerator
bracket,
head
baffle,
cylinder
head
and
head
gask
e
t.
REMOVING
VALVES
Fig
.
7-Removin
g
Val
v
cs
Use
a
valve
spring
compressor
to
compress
valve
springs,
Figure
7.
Remove
keepers
from
valve
stem
and
lift
valves
from
engine
block.
Remove
valve
spring
retainers
and
valve
springs
from
valve
chamber.
Note
that
llOH
Tractors
have
a
rotator
type
retainer
and
the
ex-
haust
valve
spring
is
shorter
than
the
intake
valve
spring.
INSPECTING
CYLINDER
HEAD
Fig
.
B-C
le
aning
(y
li
nde ,
Head
Remove
all
deposits
from
combustion
cham-
ber
and
gasket
surface
of he
ad
with
a
scraper
and
a
wire
brush.
Be
careful
not
to
elamap:e
th
e cy
lind
e r
head
gasket
surface.
Use
a
safe
c le
a
nit~g
so
l
vent
to
remove
dirt,
grease
and
other
depOSits.
Fig.
9-Checking
Surface
of
Cylinder
Head
Check
'
the
cylinder
head
for
cracks
broken
cooling
fins
and
inspect
the
gasket
su:face
for
burrs
and
nicks.
Replace
the
head
if
any
of
thes
e
conditions
are
found.
When
a
cylinder
head
is
removed
because
of
gasket
leaks,
check
the
flatness
of
the
cylinder
head
by
placing'
it
on
a
face
plate,
Figure
9.
Check
to
see
that
gasket
surfaces
make
contact
at
all
pOints.
Replace
the
cylinder
head
if
it
is
warpeel.
NOTE:
Alwa
ys
use
new
head
gasket
aft
e y re -
m oL'in[(
cylillde
r head.
Litho
in
U.S.A.