MASSEY FERGUSON MF 14 - Page 45

MASSEY-FERGUSON
TECUMSEH ENG'NES_/UODEI.S HHIOO
&
HHI2O
GROUP O - SECTION V - PART 3
STELLITE
E)flJAUST
VALVE
SEAT
ALWAYS
DBGLAZE
CYLINDER
WALL
.._
\\--<
460
SPBCIFICATIONS
\
(9
Xiexclf,srcrtow
*l
@
FOR DIMBNSiONS
DRAIN
HOLES MUST
BE
TOWARD
ENGINE BASB
BREATHER
BODY
AND
VALVE
BREATHER
TUBE
Fie. 3
BREATHER
1.
The breather
is
a
sealed
assembly.
I1
it
is def ective,
replace
the entire
assembly.
(The
rubber
tube
on the outside is not
part
of
the
assembly.)
See Fig. 3.
InstaII
the
breather with the drain holes to-
ward t}te base
of
the engine. Always use
a
llew
gasket.
ALL
BOLTS
2-tf4"
LONG
EXCEPT
AS
INDICATED
_1
SPARK
PLUG
HOLE
Fie.
5
CYLIN
DER HEAD
1.
Torque
head bolts to
200-224
inch-pounds
(17-18
ft.-lbs.
).
Head
bolts
MUST
be tightened
in sequence:
7-6-4-3-2-5-B-9-7.
Correspond-
ing
numbers
appear
in
Fig.
4.
Note
that head
bolt
rnarked lf1
is 2"
long. Head
bolts
#3 and
#4 are
1-3/8" long.
All other
head bolts are
2-1/4" Iong.
I,IOTE: Altuctl,s
ttse a netu
gasket
if
the
c),Iinrlet'
heatl
is
retrtot,erl.
CYLIN
DER
1.
Always
remove
ridge
and
carbon
buiid-up
before
attempting
to renrove the
piston
and
ring
assernbly
from the
cylinder.
2.
The
cylinder must be deglazed when
re-
placing
the
piston
and
rings.
(fnis
must
be
done to
allow
the
rings
to
seat.
)
Grind valve
seats to
460
and valves
to
45o.
Lap
valves after
grinding
for better
sealing.
See Fig.
5.
Valve
guides
may
be
oversized
7/32" if worn.
Refer to t}le
"Specifications"
Section within this
Manua]
for correct dimensions
and
to the head-
ing
"Valves"
for the
procedures.
Fis.
4
4