Filter
Top Products
20
Engine
Tractors,
Lawn
and
Garden
-
110
and
112
35-12
Piston,
Crankshait
and
Flywheel
-
Tecumseh
SM-2059-(Apr-67)
INSPECTING
MAIN
BEARINGS
Main
bearings
turn
in
an
oil
mist
and
will
not
normally
require
replacing.
Check
for
unusual
signs
of
wear
such
as
race
turning
with
bearing
or
bearing
deflection
caused
by
excessive
e
ngine
lugging.
Refer
to
"Bearing
Analysis"
be
low.
BEARING
ANALYSTS
The
caus
e of
bearing
failure
must
be
identi-
fied
and
understood
in
order
to
apply
the
proper
corrective
measures.
,
i'
6177
fig.
27-Chipped
Rollers
Chipping
of
roller
bearings
is
caused
by
improper
crankshaft
end
play
adjustment
.
Refer
to
pages
15-11
and
15-12
of
this
sec-
tion
for
an
analysis
of
other
bearing
failures.
frf
."
,
fig.
26-Pitting
and
Longitudinal
Crack
The
longitudinal
crack
and
pitting
in
this
bearing
cup
was
caused
by
improper
fit
of
the
cup
in
its
housing.
The
cup
did
not
turn,
but
there
was
a
hollow,
worn
spot
in
the
housing
underneath
the
damaged
areas
,
which
caused
the
cup
to
flex
and
become
damaged
as
shown.
Litho
in
U.S.A.