MASSEY FERGUSON MF 14 - Page 36

MASSEY-FERG USON
TECUMSEH
ENG'NES-/HODEI.SHHIOO&HHI2O GROUP O
-
SECTION V - PART 2
B. Engine
Knocks
CAUSE
REIIIEDY
Carbon
in combustion chamber.
Loose
or worn connecting rod.
Loose
flywheel.
Worn
cylinder.
Improper
magneto timing.
Excessive
main bearing
end
play.
Remove cylinder
head
or cylinder and
clean
carbon from head
and
piston.
Replace
connecting
rod.
Check
flywheel key
and
keyway; replace
parts
if
necessary.
Tighten
flywheel nut
to
50-55 ft.-lbs.
torque.
Recondition cylinder.
Time
ignition.
Readjust to correct
crankshaft end
play.
C.
Engine
Misses Under
lood
CAUSE
REIIIEDY
Spark
plug
fouled.
Spark
plug
porcelain
cracked
Improper
spark
plug
gap.
Pitted
magneto
breaker
points.
Magneto
breaker
arm sluggish.
Faulty
condenser.
Improper
carburetor
adjustment.
Improper
valve clearance.
Weak
valve spring.
Loose
or
defective
ignition
wiring or high
tension
lead.
Improper
air
gap.
Clean
and
regap
spark
plug.
Replace spark
plug.
Regap
spark
plug.
Clean
and
dress
breaker
points.
(Re-
place
badly
pitted
breaker
points.
)
Clean and lubricate breaker
point
rod
and
arm. Check for
spring tension.
Check condenser
on
a
tester; replace
if
def ective.
Adjust carburetor.
Adjust
valve clearance.
Replace valve
spring.
Refer to the heading
"Solid
State System
Ignition
Service".
Refer
to the heading
"Solid
State System
Ignition Service".
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