MASSEY FERGUSON MF 14 - Servicing of Individual Components

16. lnstall
flywheel with square
key,
wave
washer
and
nut. lnsert
a
bar between
flywheel
fins and
tighten
retaining nut
to 60 ft.-lbs.
torque.
17. lnstall push
rod and breaker
points.
Set
point
gap
to
.020". This is
an
initial
setting.
18.
Place
air shroud
plate
over carburetor
opening
as shown in
Fig.
9, and install
carbure-
tor.
19.
Connect
governor
arm
to carburetor
linkage
and
adjust
governor
linkage.
20.
lnstall
air shrouds
and rotating screen.
CYLINDER
HEAD
Cooling
fins are
provided
to aid in cooling.
Blocked
fins
often cause
"hot
spots"
which can
result
in
a
blown head
gasket.
lf
gasket
fails
around
one
of the head bolts, high
temperature
can
burn
away
portions
of the aluminum alloy
head.
lf
no
evidence of burning is
found,
check
head
for
flatness. A slightly
warped head
can be
surfaced
by
using a
piece
of
sandpaper
placed
on a
flat surface.
Carefully clean
carbon de-
posits
by
using a
putty
knife being
careful not to
scratch
gasket
surface.
To
remove
and install
cylinder head
proceed
as follows:
1.
Remove
cylinder
head
air baffle.
2.
Remove
head
bolts
and carefully re-
move head.
3.
Clean
head
and check
for flatness.
4.
Use
a new
gasket
and
reinstall
head
and
air baffle.
Tighten
head bolts in
sequence and
evenly
to
360
in.-lbs.
torque.
See Fig. 7.
CYLINDER
BLOCK
lnspect
cylinder
block as
follows:
1.
Check
all
gasket
surfaces
to
make
sure
they are
free
of
gaskets,
sealing
material and
free of
deep
scratches
or
nicks.
2.
Check
cylinder
bore
for excessive wear,
taper
or
out
of round. lf
the cylinder
taper
does
not
exceed
.005",
or .004"
out of
round, de-
glaze
cylinder
walls
and install
a
service
ring kit.
NOTE: lf gauges
are not available
for
check-
ing
cylinder
wear,
a simple
and
quite
ac-
curate
method
is
as follows:
1.
Use
top
of
piston
and
push
a
piston
ring
to bottom
of cylinder
bore.
2.
Measure
ring
end
gap.
3.
Move
the same
ring to top
of ring
travel
in
cylinder
bore
and again
measure ring
SERVICING OF
INDIVIDUAL
COMPONENTS
end
gap.
4.
Take the
diflerence
between
the two
measurements
and
divide by 3. This is
approximately
the cylinder
taper.
For Example:
With
bottom
ring
gap
ol .014"
and
.035" top
gap,
the
diflerence
is
.021".
Divide
.021" by
3, the
result is
.007". This
represents the
approximate
cylinder
taper.
3.
lf
cylinder
bore is
excessively
worn,
it
can
be rebored
to
.010"-.020"
or
.030" oversize.
Reboring to
one of these
sizes will
allow
usage
of
oversize
piston
and
ring
assemblies.
PISTON, RINGS
AND
ROD
Production
type and service
type rings are
available
in standard,
.010", .020" and .030"
oversize.
Production
type is
used
only when cyl-
inder is not worn
while service
type is
used
when
cylinder
is
worn but within
wear limits
(.005"
taper
-
.004" out of
round).
Cylinder
bore
must
be
deglazed
when service
rings are
used.
To
in-
stall new rings,
proceed
as
follows:
1.
Remove
piston
and rod and remove
rings
from
piston.
2.
Clean ring
grooves.
3.
Place
each
ring
in
cylinder
bore and
check
end
clearance.
Ring
end
gap
should be
.010"-.020".
4. lnstall
rings
on
piston
according to mark-
ings
on
the
ring.
lf
a
groove
or bevel is
on the
inside
of
the
ring, it
must be toward
the top of
piston.
When
a
groove
is
on the outside of the
ring, it
must face down
on
piston.
5.
Use
a
ring compressor
and install
piston
and
rings
into cylinder
bore.
Connecting rods
are available in
.002"
un-
dersize to be
used
where
the crankshaft has
a
slight
wear.
Rods are
also available in
.010" and
.020"
undersize
for
use
with reground
cranks.
-4-
Fig. 9
-
Plate lnstalled
Prior to lnstalling
Carburetor