MASSEY FERGUSON MF 14 - Page 62

MASSEY-FE
R
G
USON
TECUMSEH
ENG'NE5-/}IODEI.S HHIOO
& HHI2O
GROU P O SECTIONV-PART5
HIGH
SPEED
(DAMAGED
-
Replace)
FUEL
BOWL
NUT
OUTSIDE
GASKET
TBNSTON
SPRING
FUEL
BowL
FUEL
BOWL
DRAIN
v)r
YI
4
---/-zz
Fie.
I
"8"
(DAI\IAGED-
Replace)
SEAT
o
/
/
DILET
SEAT
GASKET
iNLET
SEAT
CAVITY
MAIN NOZZLE
rLOAT MOUNTING
Fie.
3
CARBU RETOR
1.
Prior
to removing
the fuel
bowl nut, Fig.
1, remove
the high
speed
adjusting
needle.
When replacing
the
fuel bowl nut,
ensure
that
fiber
gasket
is
positioned
under the nut
and
tighten
securely.
Examine
the tip
of the high
speed needle. if
it
appears
as
illustrated
in
Fig.
1,
replace
it.
If
the
tip
of the high speed needle
is damaged,
the
seat is
probably
damaged.
Since the
seat
is
part
of the
main nozzle,
the rnain nozzle
shouid
also be replaced.
Refer to
Step #4.
2.
The float
setting is
.110"-.130",
meas-
ured
opposite
the float hinge
as shown in Fig.
2.
Remove
the float by
pulling
out
the float
axle.
Bend the
adjusting tab to the
correct
setting.
NOTE: Alttta):s retltore
floctl
to nrtke
ctdjust
ntcttts
.
3. Examine the inlet needle.
"A'?
(Fig.
3)
is
a
needle that is
serviceable. If the tip
ap-
pears
damaged,
as
in
"Bt',
replace needle
and
seat assembly. Tighten inlet seat to
40-50
inch-pounds.
Always use
new
gasket.
4.
Normally the main nozzle
should not be
removed.
It is
possible
to
clean the
carburetor
with
solvent and compressed
air. Remove and
replace
the main nozzle
only if the
high
speed
needLe
seat is damaged,
or because
of exces-
sive
dirt.
If it is
necessary
to
remove
the main nozzle
to
aid
in
cleaning,
discard
the rnain nozzle
and
use
a
service replacement
nozzle
with
an
un-
dercut
in the thread
area.
See
Fig.
4.
If
the
nozzle removed
is undercut,
it can be
reused.
This
procedure
must be followed
to assure de-
Iivery
of
fuel
into the idle
system.
5.
Use
new
gaskets
when rebuilding the car-
buretor. If fuel bowl-to-carburetor
body
gas-
ket does not
seat, enlarge by
stretching with
4
or
5
quick
short
strokes. Fiber
gasket
must
be used between
center of fuel bowl and car-
buretor body.
6. Ensure that fuel
pick
up
passage
is clean
to
assure adequate
fuel
flow from the fuel bowl
to
the metering systems.
FLOAT
FLOAT HNGE
AND AXLE
FLOAT
SETTING
.110
.13 0
INLET
NEEDLE
AND SEAT
Fis.2