Starter - 4-CYL: Description

Starter is a 12-volt, 4-pole unit of conventional design and has a solenoid pinion shaft (overrunning clutch) with entire mechanism enclosed within housing. Field assembly consists of 4 series coils or combination of series coils with 1 more shunt coil. Brush assemblies are completely enclosed within field frame at commutator end so entire starter and drive assembly is protected.

Starter solenoid is flange mounted on drive end housing and has a compression-type return spring located inside solenoid case. Jeep models use the 5MT starter. Diesel Chevrolet and GMC models use the 27MT starter, which differs only in that it uses a center bearing. All other models use the 10MT starter.

Jeep "CJ" and Scrambler models with 4-cylinder engine and automatic transmission have a starter motor relay, which is energized when ignition key is in "START" position and transmission selector lever is in either "NEUTRAL" or "PARK" position. Battery voltage is then applied to pull-in and hold-in windings.