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Frontispiece.- View of Modern Automobile Chassis, Showing Location of Power Plant and Parts of Electric
LIGHTING AND IGNITION
ELEMENTARY PRACTICAL WIRING DIAGRAMS
A COMPLETE EXPOSITION EXPLAINING
Describes Storage Battery Construction and Maintenance, Magneto Timing—Care of Motors and Generators and System
atic Location of All Electrical Faults
INVALUABLE TO MOTORISTS, STUDENTS, MECHANICS AND REPAIR MEN
UNDERSTOOD, NON-TECHNICAL MANNER
VICTOR W. PAGÉ, M. E.
Illustratea by 295 Specially Made Engravings
132 NASSAU STREET
Copyrighted, 1916, by
All Rights Reserved
NOTE.-All illustrations in this book have
BROOKLYN, N. Y.
THERE has been no part of the automobile that has been į changed more often than the ignition system. The first cars had simple battery and coil ignition, then with the introduction of
the high tension magneto the systems were usually combined on in the same engine in order to secure double ignition systems, either u one being independent of the other. Later, as the magneto became
refined and improved, a number of makers discarded the battery * ignition system and placed their entire reliance on the magneto.
With the coming of the demand for electrical motor starting and lighting systems came a revival of the battery ignition method which had been discarded for the high tension magneto. The main reason for using the magneto in preference to the battery system was that ignition became weaker with the latter after the
engine had been run for a time owing to a lessened output of the a battery. The magneto which generates electricity by a mechani
cal process had the advantage because the faster it was driven the more current it delivered.
In the modern automobiles an electrical current generator is provided, run by the engine which is depended on to charge a storage battery while the motor is running, the current for ignition and lighting being taken from the storage battery instead of directly from the generator which delivers a current of varying output depending upon the engine speed which in turn regulates the rate of generator armature rotation. On many cars therefore, the battery ignition systems are used as the use of the generator keeps the battery charged always to the proper point for securing energetic ignition. The automobile repairman will have cars to repair that will use a wide variety of ignition systems, as many of those fitted with the simple battery and coil are still in use while a very large number are equipped solely with the high tension magneto. Many of the newer cars use improved battery ignition systems with the high tension magneto eliminated.