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THE BEST AUTOMOBILE BOOKS

All by VICTOR W. PAGÉ MODERN GASOLINE AUTOMOBILE, ITS DESIGN, CONSTRUC

TION AND REPAIR. 1919 Edition just published. 5}x 71. Cloth, 850 pages, 600 illustrations, 12 folding plates.

Price, $3.50 QUESTIONS AND ANSWERS RELATING TO MODERN AUTOMOBILE CONSTRUCTION, DRIVING AND REPAIR.

A popular work at a popular price. 57 x 7. Cloth, 650 pages, 392 illustra

tions, 3 folding plates. 1919 Edition just published. Price, $2.00 AUTOMOBILE REPAIRING MADE EASY. You will never "get

stuck on a job if you own this book. 1,000 specially made engravings on 500 plates. 1,056 pages (54 x 8). 11 folding plates. 1919 Edition.

Price, $3.50 STARTING, LIGHTING AND IGNITION SYSTEMS. 528 pages. 278 specially made engravings. 1919 Edition.

Price, $2.00 THE MODEL T FORD CAR, ITS CONSTRUCTION, OPERATION

AND REPAIR. Every Ford owner needs this practical book., 1919 Edition. 75 illustrations, 300 pages, 2 large folding plates.

Price, $1.00 HOW TO RUN AN AUTOMOBILE. This treatise gives concise in

structions for starting and running all makes of gasoline automobiles, how to care for them, and gives distinctive features of control.

Price, $1.00 THE AUTOMOBILIST'S POCKET COMPANION AND EXPENSE

RECORD. This book is not only valuable as a convenient cost record but contains much information of value to motorists. Convenient pocket size.

Price, $1.00 STORAGE BATTERIES SIMPLIFIED. A comprehensive treatise

devoted entirely to secondary batteries and their maintenance, repair and use. 250 pages. Very fully illustrated.

Price, $2.00 AUTOMOBILE CHARTS Location of Gasoline Engine Troubles Made Easy. Priee, 25c. Location of Carburetion Troubles Made Easy.

Price, 25c. Location of Ignition System Troubles Made Easy. Price, 25c. Location of Engine Cooling and Lubricating Troubles Made Easy.

Price, 25c. Location of Ford Engine Troubles Made Easy.

Pilee, 25c. Lubrication of the Motor Car Chassis.

Price, 25c. Location of Motor Cycle Troubles Made Easy. Price, 25c.

Full description of all the above will be found in back εdvertising pages. Special circular of these books and charts sent free on reqriest.

Any book sent prepaid on receipt of price.

Published by THE NORMAN W. HENLEY PUBLISHING CO. 2 West 45th St.

New York

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Frontispiece.—View of Modern Automobile Chassis, Showing Location of Power Plant and Parts of Electric

Starting System.

LIGHTING AND IGNITION

ELEMENTARY
PRINCIPLES

PRACTICAL
APPLICATION

WIRING DIAGRAMS
AND REPAIR HINTS

A COMPLETE EXPOSITION EXPLAINING ALL FORMS OF ELECTRICAL IGNITION SYSTEMS USED WITH INTERNAL COMBUSTION ENGINES OF ALL TYPES, ALSO INCLUDES A COMPREHENSIVE SERIES OF INSTRUCTIONS PERTAINING TO STARTING AND LIGHTING SYSTEMS OF AUTOMOBILES

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
EVERY PHASE OF THE SUBJECT IS TREATED IN AN EASILY

UNDERSTOOD, NON-TECHNICAL MANNER

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Member Society of Automobile Engineers; author of Automobile Pepuising Made Easy, "etc., etc.

SCIENCE

SIXTH EDITION, REVISED

Illustrated by 298 Specially Made Engravings

NEW YORK
THE NORMAN W. HENLEY PUBLISHING COMPANY

2 WEST 45th STREET

1919

arcultural peronto,

MAIN LIORARY-AGRICULTURE DEM

Copyrighted 1917 and 1916, by
THE NORMAN W. HENLEY PUBLISHING COMPANY

All Rights Reserved

SIXTH IMPRESSION

NOTE. Aúiilustrations in this book have
been specially made by the publishers, and their
use without permission is strictly prohibited.

THERE has been no part of the automobile that has been 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 the same engine in order to secure double ignition systems, either one being independent of the other. Later, as the magneto became refined and improved, a number of makers discarded the battery ignition system and piaced 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 battery. The magneto which generates electricity by a mechanical 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 battery and vibrator coil are still in use while a small number are equipped solely with the high tension magneto. Most of the newer cars use improved battery ignition systems with the high tension magneto eliminated.

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