Cadillac Model 53 (1916) (Serial Nos. A20,000 to A38,002; Deico Starting and Lighting System Delco Ignition Battery.—Battery is 6 volt, 150 ampere-hour. The positive (-}) terminal is grounded. ignition.—Breaker contacts should separate .0!8 inch. They are made of tungsten. They will operate properly even though very irregular, due to the fact that the rough surfaces fit each other perfectly. Should they become badly burned or pitted, affecting the igni- tion, remove and resurface them by drawing across a piece of fine emery cloth laid on a flat surface, as on the bed of a drill press, finishing on a very hard oil stone. Clean all oil from contacts before again putting into service. Timing.—Breaker contacts should separate when flywheel marking “1-GA” is directly under indicator, No. | piston of left-hand block entering power stroke, spark control lever and breaker assembly in fully retarded position. Firing Order.—The firing order is 1L, 2R, 3L, IR, 4L, 3R, 2L, 4R. Spark Plug Gaps.—Spark plug gaps should he .028 inch to .030 inch. Oiling.—Every 2000 miles remove the breather pipe on the ignition unit and pack the gears with soft cup grease. If track of rotor button inside distributor head is not well polished, apply a very small amount of vaseline with a soft cloth. 7 Starter-Generator.—Starter and generator are combined into one unit, but are electric- ally separate. Starter is connected to the flywheel through a pinion shifted by the operator. Cold engine, heavy oil, tight bearings or other obstructions, or damp, grounded or short circuited windings will cause high current and low speed during the cranking operation. Discharged, dry or sulphated battery, defective battery connections, defective starter connections, dirty commutator, high mica, dirty or sticking brushes, defective connections between armature coils and commutator bars or open circuits are the chief causes of low speed and low current. Generator.—Generator current regulation is by third brush method. Generator Dara, Moror-Generaror No. 78 Output-Amperes R. P. M. Netti all sccsscscassacscezascasesiassssacsantce eerste cespesernnsta sarees Neo urenerinsaence Nee wccne 39.5 Bar Bc ccecesseesnneescnssseanessnsseetenesvnnsneannenn setisasseiseseisassnusessaineissenuasentesesvssessenenssnsea 500 16-20….. .1000 12-17. .1500 When motoring with the overrunning clutch as the only retarding force, generator should take 4.5 amperes. To adjust the charging rate, loosen the two screws on the movable arm holding the third brush. If it is desired to increase the charging rate, the arm should be lengthened, and shortened to decrease it. Oiling.—Put 4 or 5 drops of light engine oil in starter-generator oiler every two weeks, At the same time inject Cadillac rear axle and transmission lubricant in elbow oiler at rear of starter shaft with grease gun. If car is driven more than 500 miles in two weeks, these attentions must be given every 500 miles. Relay.—There is no relay. Circuit between generator and battery is controlled by ignition switch. Lamps.—Head lamps are 6-8 volt, 20 cp. Side lamps are 6-8 volt, 6cp. Tail and dash lamps are in series and are each 3-4 volt, 2 cp. Tonneau lamp is 6-8 volt, 2 cp. Sircuit Breakers.—There is a vibraring circuit breaker in the circuit to the head, side, dash and tail lamps, which takes the place of fuses. It requires a current of 25 amperes to start this device vibrating, but when vibrating a current of 3 to 5 amperes will cause it to continue. There is a lock-out circuit breaker in the circuit to the horn, tonneau lamp and handy lamp socket. A current of 25 amperes will cause this device to open the circuit. Model Numbers.—Motor-generator is No. 78. Ignition coil is No. 2115. Combination switch is No. 1062 or No. 1069. HEAD LIGHTs SNITCH COPIOINAT ION TAle LIGHTS Cow. Sroe Ls WARATING ClNCUIT BSREANER WAN DY Lane Socwer iS g WOLNEIVLSG NX yy ‘ia vaso A 29 N S343 Vs = r FO NOILIND, 2) > Q : Ke 8: z R Se Ng =e x sy % eS Sy Ns o-9) Serres STHPAAL