1942 - 1947 Chevrolet Shop Manual

12-20

A shift lever bolted at its fulcrum to the starting motor housing has a yoke at its lower end which straddles the sheave, integral bosses on its inner sides engage the sheave grooves. Its upper end connects to the starter pedal through linkage.

When cranking the engine, depressing the starter pedal causes the lever to shift the pinion into mesh with flywheel teeth. Further pedal movement brings an offset portion of the lever into contact with the button on the starter switch, thereby closing the switch contacts. In case the pinion is stopped when entering the edge of the flywheel, the compression spring allows the sheave to move along the sleeve, permitting the lever to close the starter switch contacts. The instant the armature starts to rotate, the compression spring pushes the pinion into full mesh with the flywheel immediately, Fig. 42.

After the engine fires, and before the pinion can be withdrawn from the flywheel teeth, the overrunning clutch allows the pinion to spin freely in

Fig. 43-Starter Drive Over-Running Clutch

Fig. 44-Starting Motor Parts Layout


1	Drive Housing	7	Field Frame	12	End Spacer	17	Armature
2	Shift Lever	8	Field Coils	13	Starter Drive Shaft	18	Brush Springs
3	Bolt (Shift Lever)	9	Through Bolts		and Pinion	19	Brushes
4	Lockwasher	10	Band	14	Spring	20	Brush Holders
5	Nut	11	Brush Holder Frame	15	Sheave	21	Brush Field Lead
6	Switch		with Pins	16	Snap Ring	22	Brush to Ground Lead