MASSEY FERGUSON MF 14 - Page 40

MASSEY-FERGUSON
TECUilSEH
ENG'NES-/UODEI.S HHIOO & HHI2O GROUP
O - SECTION V - PART 2
J.
Breother
Possing
Oil
CAUSE
REMEDY
Engine
speed too
fast.
Loose
oil
fill
cap or
gasket
damaged
missing.
Oil levei
too high,
Breather
mechanism
damaged.
Breather
mechanism
dirty.
Drain
hole
in
breather box
clogged.
Piston
ring
end
gaps
aligned.
Breather
mechanism
installed upside
down.
Breather
mechanism
loose
or
gaskets
leaking.
Damaged
or worn
oil seals
on end
of
crankshaft.
Rings
not
seated
properly.
Cylinder
cover
gasket
leaking.
Use tachometer to
adjust correct rpm.
hrstaLl new ring
gasket
under
cap
and
tighten
securely.
Check
oiI
level
-
turn dipstick
cap tightly
into receptacle
for
accurate
reading.
DO
NOT fill above full
mark.
Check reed
plate
ald
assembly.
Repiace
complete unit.
Ciean thoroughly
in
solvent.
Use
new
gaskets
when reinstalling
unit.
Clean hole with
wire to
aLlow oil to return
to
crankcase.
Rotate
end
gaps
so they are
staggeredgOo
apart.
Small
oil
drain
holes must
be
down
to
drain
oil from
mechanism.
brstall new
gaskets
and
tighten
securely.
Replace seals.
Check
for
worn
or out-of-round
cylinder.
Replace
rings.
Break in new rings
with
engine
working under
a varying load.
Rings
must
be
seated under
high
com-
pression,
or in
other words, under
varied
load conditions.
Replace
cover
gaskets.
CO/UPRESSTON
LEAK IESI
1.
Through muffler
-
Indicates leaky
ex-
haust
valve.
A
quick
method
to
pinpoint
compressionleak-
age is to
force
compressedair
into
thecombus-
2.
Carburetor
-
Indicates
intake
valve
leak.
tion chamber
(by
means
of
an
air
operated
valve
tool
inserted
in
place
of the
spark
plug).
3.
Remove oil filler
plug
and
listen
at
fill
hole
-
Air leakage
at hole would
indicate worn
Rotate
the engine
to T. D.
C. on the compres-
or
damaged rings,
piston
or cylinder.
sion stroke
to close
the
valves. Secure the
air
hose
adaptor
into
the spark
plug
hole.
Force 4.
Around head
gasket
-
This wouldindicate
approximately
60
pounds
of
air
pressure
into damaged
head
gasket
or warped head
gasket
the
combustion
chamber
and
listen
for leakage
surface. Appiy
a soapy solution
around the
at the following points:
head
gasket
area. Air
bubbiing through
the
6