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E-4
TROUBLESHOOTING
E-4
CLASSIC I
LINCOLN
ELECTRIC
ELECTRIC
®
Observe all Safety Guidelines detailed througout this manual
If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact your
Local Lincoln Authorized Field Service Facility for technical troubleshooting assistance before you proceed.
CAUTION
PROBLEMS
PROBLEMS
(SYMPTOMS)
POSSIBLE
CAUSES
RECOMMENDED
COURSE OF ACTION
9. Overheating.
10. Knocking.
11. Surging.
12. Large decrease in speed.
a. No water in radiator or clogged
cooling system.
b. Late timing.
c. Improper valve clearance.
d. Fan belt too loose.
a. Poor grade of gasoline.
b. Spark advanced too far.
a. Governor and carburetor toggles
and butterfly valve shaft lever are
dirty and sticking.
b. Dirty air filter.
c. Governor spring adjusting screw
misadjusted.
d. Governor control rod wrong
length.
a. Misadjusted governor spring
adjusting screw.
a. Check throughout for dirty or bro-
ken hoses, clogged radiator, or
defective water pump.
b. Time ignition. *
Intake Exhaust
.014 .018
c. Adjust valve
tappets (cold settings.)
d. Adjust for 3/4” to 1” deflection.
a. Use at least 75 octane gasoline.
b. Retime ignition. *
a. Clean and lubricate. Replace
toggles if worn.
b. Remove and clean according to
instructions on unit.
c. Adjust screw enough to eliminate
surge. *
d. Adjust length of control rod so
that there is from 1/32” to 1/16”
clearance between the stop pin
and the stop when the engine is
shutoff and the regulator expand-
ed. *
a. Adjust screw until speed does not
drop more than 100 RPM ± 25
RPM when arc is struck. If surge
occurs, eliminate it with the con-
trol rod. If high idle speed
changes, readjust the high idle
speed screw. *