OCR Text |
Show Poor Spark Adjustment Causes L'itle Troubles Sometimes the spark adjustment is a little off and the driver does not know it. He may lie blaming some other units of the car for what Is happening. hap-pening. A brief, but effective, test of the spark is then advisable. To do this disconnect the high-tension cable from the coil. Then with a screwdriver touch the nearest metal part and hold it so that the upper metal part of the screwdriver is about one-eighth Inch from the high-tension terminal of the coll. Turn on the ignition igni-tion switch and fully advance the spark control lever on the steering post. When the petcocks are opened (to relieve compression) and the engine en-gine cranked over by hand slowly a spark will jump from the coil handle to the screwdriver. At the moment of the spark the flywheel should be In a position for advanced spark. This is usually marked on the flywheel, and will be seen just preceding the marks for upper dead center. If the arrival of the spark does not match with the mark on the flywheel the spark is either too late or too early, as the case may be. |