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