FORD 1921-1922 LIBERTY GENERATING, STARTING AND LIGHTING SYSTEM FORD IGNITION BATTERY.—Ford, Exide, U. S. L., or Prest-O-Lite, 6 volt, 80 ampere~hour. The nega tive (—) terminal is grounded. IGNITION:—The magneto is carried in the flywheel housing. There should be a clear- ance of .031 inch between the coil cores and the magnet pole pieces. The magneto delivers alternating current to four vibrator ignition coils, one connected to each spark plug, as the timer closes the circuit in the proper sequence. When the vi- brator arm is held down, the contacts should separate .030 inch. If the contacts are badly burned or pitted, resurface with a fine, flat jeweler’s file or on a medium . hard oilstone. Coils should be adjusted to draw 1.3 amperes at 6 volts. Oiling:—Put several drops of light engine oil in the spring oiler of the timer every two weeks. In cold weather a mixture of 14 kerosene and 3% light engine oil should be used. Timing :—Timer roller should just make connection with segment connected to Num- ber I coil when the piston in Number | cylinder is on top dead center of the power stroke, spark control lever and timer cal in the fully retarded position. Firing Order:—The firing order is 1-2-4-3. Spark Plug Gaps:—The spark plug gaps are .030 to .032 inch. STARTER:—Type F.A. Starter is connected to the engine through a Bendix drive. The direction of rotation is counter-clockwise, looking at the commutator end. Starter cranks the engine at 150 R.P.M., taking 160 amperes at 5 volts, Starter Data—F.A. Torque R.P.M. Volts Amperes WBS flssssetcsecessexsnerecvee ||| een en ey A 1 Ud eee eee: 125 S Wb: heessecercevane: 1050. ebb Ne AAT cteAcncbeses 330 Qlb; fterssicas cs 425 ee 3.6.. dco -coccedherved 465 12s | a | Lock….n..0:e-becdeessoneecen cA an Oe ae —— 580 Oiling:—Starter requires no oiling. GENERATOR:—Type F.A. Generator current regulation is by the third brush system. _ Direction of rotation is counter-clockwise, looking at the commutator end. Generator Data—F.A. ae Volts R.P.M. YU ccxsossevapsnemerscazecatasecsoeeses 6.6 NN eee Ns 80 I | [5 ara. ’ f, ON. GS AP ..1100 TD ccscesscnssccexsascsettansceteasccvee ED ND Bi Be 1400 | | eee ene B22 cee Ne Oo: 1700 P10? cone ri. ee, 0 4 .2000 gt rate is varied by adjustment of the third brush setting. Loosen the clamp nut holding the third brush holder. More third brush in the direction of armature rotation to increase the charging rate, or in the opposite direction to decrease the charging rate. Clamp the third brush after position adjustment. The generator fields draw 2.4 amperes at 6 volts, Oilimg:—Put 4 or 5 drops of light engine oil in the rear generator bearing oiler every two weeks. If the car is driven more than 500 miles in 2 weeks, the oiling must be done every 500 miles. RELAY:—Relay is mounted on the generator frame. Relay closes at 600-650 R.P.M. of armature or 8-10 miles per hour, and opens at 550-600 R.P.M. of armature or 6-8 miles per hour, the discharge current being 0-2 amperes. Relay contacts separate .032 inch. If badly burned or pitted resurface with worn No. 00 sand- paper. Remove all grit. Adjust before again putting into service. LAMPS:—Head lamps are 6-8 volt, 21 cp. Dimmer and tail lamps are 6-8 volt, 2 ep. £2 IGNITION COILS | ‘Leond ——