Filter
Top Products
Tractors,
Lawn
and
Gard
n - 110
and
112
Engine
20
-2059-(A11r-67)
Piston
, C
rankshaft
and
Flywh
e
el
-
Kohl
er
15-
5
I'JP
"J
in
...
l:
l
••
M
HSf)
Fig.
8-
Top
Rin9
and
Gr
ao
v",
Si
de
Wear
eh
' k
wcar
of l'in
l.'
:
g-
r o
ov
s
carefully,
es-
pecially
th
e'
top
groove.
Tile
top
rin~
"
and
f];roovl'
is
xpo
se
d
to
mo
s t
corn
l)usti
on
temp
r a
tul'
e
and
pr
es
sure
as
we
ll
as
a ir110rne
abrasives
which
enter
the
combustion
chamber.
Fi
g.
9-PiSfon
Rings
S
tuck
and
Broken
Becouse
of
L
acquer.
Varn
ish
ond
Corban
Build
.up
Any
condition
which
causes
the
en
~
in
e
to
op-
e
rate
at
abnormally
hi
gh
temperatures
may
cause
valTlish
ane!
lacquer
gllnl
deposits
as
well
as
carbon
deposits
to
form
in
the
piston
grooves
making;
th
e l'inp;s
stick.
When
this
happ
e
ns
ex
-
cessive
oil
consumption
and
blowby
will
occur
.
Eng:ine
heatin
!!
and
ring:
stickiW
are
most
ofte
n
caused
by:
1.
Ov
e
rl
oading.
5.
Incorr
ec
t
oil.
2. Ove
r-advanc
ed
i~
n
iti
oll. 6.
Low
oil
supply.
3.
Lean
fu el
mixtur
e . 7.
Stale
fuel.
4.
Dirty
coolil1
~
fins.
Lith
o
in
U .
..
A.
F
ig.
IO-S
"a
rcl,cd R
in
g
Fac
e.
CU
(J
, ed by
Ahro s iv
~
;(1
t
he
E
ngi
ll ('
Vertical
sc
ratch
es
aCl'OSS
th
e
fac
~
.
of
pi-
ton
rings
are
the
rE:!sult of
an
abrasive
enterin
g
the
engin
e.
Abrasives
may
be
airborne,
may
have
be
en
left
in
clul'in
r;
over
haul,
or
a
re
loo
se
lead
and
carboll
cleposits.
When
this
<.:o
nclition
is
fo
und.
always
c:heck
and
corr
ec
t
the
s o
ur
C'c
of
abrasives
becau
se
th
e
!if
of
a new
set
of
rings
will
be
short
otherwise.
COl1lmon
causes
for
abra
sives
in
th
e enp;ine
al'e
:
1.
Dam
ag
ed,
collapsed
or
improp
er
ly
in-
stalled
air
filter.
2.
Loose
connection
or
damaged
g
asket
be-
tw
een
air
filt
er
and
carburetor.
:3.
Air
lea
k
around
ca
rb\'ll'etor
to
block
gas
ket.
4.
Air
leaka
ge
around
throttle
shaft.
5.
Failure
to
pr
o
perly
clean
cy
linder
bore.