Early Starter (pre-'92) Exploded

The top pole shoe is welded to a sprung lever so that the lever rests up. When power is applied to the main terminal, the upper field coil pulls the shoe & lever down, pushing the drive gear out & then operating the contactor to energize the other coils, causing the motor to spin.

This style of starter cannot cause itself to run-on since it doesn't normally have power. Run-on with this starter can only be caused by the starter relay, which can stay on due to an internal fault, a wiring fault, a failed NSS, a failed ignition switch, or a switch actuator fault in the steering column.

11002 - Starter motor assembly (E4TZ-11002-A)
11005 - Armature assembly (D7AZ-11005-A)
11036 - Washer
11049 - Rear plate
11052 - Bushing, rear (D3AZ-11052-A)
11057 - Brush Set (E4PZ-11057-A)
11060 - Cover
11061 - Brush holder
11062 - Insulator
11065 - Cover gasket
11067 - Lever with attached pole shoe
11082 - Field windings
11091 - Screw, case
11103 - Spring
11105 - Coil cover, inner
11106 - Coil cover, outer
11130 - Nosepiece kit
11135 - Spring
11222 - Snap ring
11223 - Collar
11350 - Drive gear kit (E2PZ-11350-A)
11415 - Screw, pole shoe (#4 Phillips drive, countersunk)
11A120 - Insulator
11A143 - Insulator
11K013 - Bushing, front (D3AZ-11052-A)
14300 - Cable, starter relay to starter

'80-91 4.9L/5.0L automatic = MotorCraft SA-734BRM
'80-91 5.0L manual = MotorCraft SA-738ARM
'80-91 5.8L automatic = MotorCraft SA-709BRM
other / unknown = MotorCraft SAV-738ARM

See also:
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Owner caption August 2011 · Photo 3838 of 5000