Description & Operation
Starter motor features pole pieces that are arranged around armature within starter housing and are serviceable only by complete replacement. Drive housing encloses shift lever, shift lever mechanism and solenoid plunger to protect them from exposure to ice, dirt, and other elements.
When voltage is applied to solenoid, voltage is applied to solenoid windings which causes movement of solenoid plunger and shift lever, causing drive pinion to engage flywheel and close solenoid switch contacts. See Fig 1 . When solenoid switch contacts close, starter motor energizes and cranks engine. As engine starts, pinion overrun clutch protects armature from excessive speed until ignition switch is opened and plunger return spring disengages pinion.