LIGHTING SWITCH (“aaa fF i ty 1 – 27 1 o- ee a i iss me HORN . oP 4 _AGMITION com E | PO) Oat) E© y iad ie ae z qs US UY ic z= a VIBRATING CIRCUIT BREAKER ee! STARTER SIDE LIGHT Gy DAVIS MODEL 94 (1927) DELCO-REMY GENERATING, STARTING SYSTEM DELCO-REMY IGNITION BATTERY:—Willard, Type WR-13, 6 volt. The negative (—) terminal is ground- ed. Starting capacity (20 minute rate) is 98 amperes for 20 minutes. Light- ing capacity (5 ampere rate) is 5 amperes for 17 hours. IGNITION :—Coil Model 2182. Distributor Model 5294. Breaker contacts separate .018-.022 inch. They are made of tungsten. Resurface contacts with a fine contact file or on a medium hard oilstone. Automatic advance begins at 580 R.P.M. Maximum automatic advance is 30 degrees reached at 2800 R.P.M. Breaker arm spring tension is 16-20 ounces. Oiling:—Put 8 or 10 drops of light engine oil in the distributor oilers every two weeks or each 500 miles. Put a small bit of vaseline on the face of the breaker cam every 2000 miles. Timing:—Breaker contacts begin to separate when piston No. 1 reaches top dead center on the compression stroke, with the spark control and breaker assembly in the fully retarded position. Firing Order:—The firing order is 1-5-3-6-2-4. Spark Plugs:—Spark plugs are % S.A.E. Standard. Gaps are .025 inch. STARTER:—Model 313. Starter is connected to the engine through a Bendix drive. The direction of rotation is counter-clockwise, looking at the commu- tator end. Brush tension is 214-214 pounds each. Starter Data Torque R.P.M. Volts Amperes Ovlbl fhicdeccucN conc: Bree ee Cine eee 50 TS TD LGsmeed.ccereeAeecerecoel cel. LOCK)… ef nencncsenveses BB caine eas nksiecceaton seca Oiling:—Starter bearings are oilless. They require no attention. GENERATOR:—Model 332. The direction of rotation is counter-clockwise, look- ing at the commutator end. The maximum charging rate is 14-17 amperes reached at 1600 R.P.M. The third brush system is used for current regula- tion. To adjust generator charging rate, loosen the lock screw and shift the third brush in a counter-clockwise direction to increase the charging rate and in the opposite direction to decrease the charging rate. Generator brush tension is 114-144 pounds. Generator Data Amperes R.P.M. Volts Oa. Lo fecosesee Lf ee ee eee 6.5 10.X.. 1000… road OS by Bien. Wire dite eee io A GOO ec tesscsccesa ch eee 8.1 Motoring, generator draws 4.5-6 amperes at 6 volts. Shunt field current is 4 amperes at 6 volts. RELAY:—Relay closes when the generator voltage reaches 7-7.5 volts and opens with a discharge current of 0-2 amperes. Contacts separate .025 inch. Air gap is .009-.010 inch with contacts closed. LIGHTING :—Delco-Remy Switch Model 1300. Switch is mounted at the base of the steering column. Head lights are 21-21 cp. (double filament-double con- tact), Mazda 1110. Side lights are 6-8 volt, 3 cp. S.C. Mazda 63. Stop light is 6-8 volt, 15 cp. S.C. Mazda 87. Dash light is 6-8 volt, 3 cp. D.C. Mazda 64. Dome and tail lights are 6-8 volt, 3 cp. S.C. Mazda 63. CIRCUIT BREAKER:—A vibrating circuit breaker is combined with the ignition switch on the dash. Circuit breaker begins to vibrate with a current of 25-30 amperes and continues to operate limiting the current to 10-15 am- peres,