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46
Fig. 3. 95
(i)
Oil
ssparntc,
3. ENG
INE
·-
r
I
I
B. Oil Separator Operation
The
oil separator
is located in the forward
section
of
the
lower
crankcase, directly
below
the
crank-
shaft.
Its
primary
function is
to
control the splash
and oil foaming caused by the counterweights
;
pre-
vent
the
oil
fro:n the penetrating
into
the combustion
chamber
and
also
controls oil temperature
(Fig.
3. 95)
C.
Upper and Lower Crankcase Disassembly
l.
Remove
the left crankcase
side cover,
the
generator,
and the starting clutch in accordance
with Section
3. 4 B.
2.
Remove the
right crankcase
cover in
accordance
w
ith Sect
ion
3. 3 B.
3.
Separate oil filter in
accordance
with
Section
3. 3
E.
4.
Remove the
clutch
in
accordance with Sec-
tion
3. 3
I.
5.
Gear shift spindle
removal
Remove
the left circlip, pull out the gear shift
spindle
exercising care not to damage the drum
stop
cam
plate.
6.
Loosen
the
four
6
mm
hex
bolts on
the upper
side, the
four 8 mm
hex
bolts and
seven
6 mm
hex bolts on the under side, and remove the
lower
case.
D.
Upper and Lower Crankcase Inspection
l.
Check for damages especially around machine
mating surfaces since even a small defect such
as scratch will cause oil leaks.
Repair should
be made with an
oil
stone.
E.
Upper and Lower Crankcase Reassembly
l.
Check
to make
sure that
the
kick
starter is
properly engaged in the lower case.
App ly
liquid packing to the machined mating surface
of the lower case.
NOTE:
a.
Oil,
solvent, unremove gasket
should be com-
pletely removed from the mating machine surface.
b.
Do not permit the liquid gasket to get on
the
dowel
,pin hole or to surfaces other than
the mating parts.
c.
Apply the liquid gasket evenly and smoothly.
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