Repair and Diagnosis: Electrical: Starter: Starter: 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 one 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. Diesel Chevrolet and GMC models use the 27MT starter, which differs only in that it uses a center bearing. All other GM models use 5MT or 10MT starter.