Pinion Extension Length (Hitachi)

1. Disconnect "M" terminal lead from solenoid. Compare relative positions of pinion when solenoid is energized and when pinion is pulled out by hand. See Fig 1 .
2. Difference between measurements should be .002-.0591" (.05-1.5 mm). If measurements are not as specified, remove solenoid, and install appropriate adjusting plate between solenoid and starter housing. Adjusting plates come in 2 thicknesses, .020" (.5 mm) and .031" (.8 mm).

Fig 1: Checking Starter Pinion Extension Clearance (Hitachi)

Courtesy of NISSAN MOTOR CO., U.S.A.