MASSEY FERGUSON MF 14 - Page 67

MASSEY.FERGUSON
rECU'I'SEH E'VG"VES
MODEL H7O
GROUP O-SECTION
V-PART
7
C.
ENGINE
MISSES
UNDER
LOAD
Cause
Remedy
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.
Clean
and
regap spark plug.
Replace
spark plug.
Regap spark
plug.
Clean
and dress breaker
points.
(Replace
badly
pitted breaker
points.)
Clean
and
lubricate breaker point
rod
and
arm.
Check
for
spring
tension.
Check
condenser on a
tester; replace ifdefective.
Adjust
carburetor.
Adjust valve clearance.
Replace valve
spring.
D. ENGINE LACKS
POWER
Gause
Remedy
Choke partially
closed.
Improper carburetor adjustment.
Magneto
improperly timed.
Loss of compression.
Lack of
lubrication.
Air cleaner
restricted.
Valves leaking.
Valve timing inaccurate.
Carburetor
dirty or
damaged.
I
gnition
system malfunction.
Open
choke.
Adjust carburetor.
Time engine.
Check
compression
and
make
Fill crankcase
to the proper level.
necessary
repairs.
Clean
air cleaner.
Grind valves.
Check
timing marks on camshaft
and crankshaft
gear.
Clean and
repair carburetor
Check
and
repair system.
E. ENGINE OVERHEATS
Cause
Remedy
Engine
improperly
timed.
Carburetor improperly adjusted
(lean).
Time
engine.
Adjust
carburetor.
2
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