How To Drive A Motorcar
A Key To The Subtleties Of Motoring

HOW TO DRIVE A MOTORCAR aforementioned efforts have failed, then the covering disc should be taken off and the distributor brush inspected, and if necessary cleaned. Sometimes a little oil and carbon dust may have combined to make a “ shorting film,” which should be carefully wiped out with a piece of clean rag, and this may be just dipped in petrol if one takes care not to use too much petrol, and to give it time to evaporate before turning the engine again. The Contact Breaker If irregular firing should occur, it is practically certain that it is due to faulty working of the contact breaker. This is the lower of two little chambers at the end of the magneto, and the cover can be easily removed. Contact breaker of a magneto—make and break must be kept properly adjusted First of all see that the little centre screw is quite tight, and also that the steel segments are rigid ; also note that the two platinum contacts are in good condition—not dirty and jagged. Here, again, any oil or grease should be carefully re- moved, and if the contact points are uneven or dirty they must be carefully cleaned or adjusted. When the small bell crank lever is at its maximum depression, 46