Nissan Alternator Exploded Diagram & Torque Specs - Charging System (EL-25)

This is a page from a Nissan factory service manual, section EL-25 (Electrical), covering the charging system alternator construction. It presents an exploded parts diagram (figure SEL053D) showing all internal components of the alternator in disassembled order: through-bolt, pulley assembly, front cover, spacer, front bearing, bearing retainer, rotor, rear bearing, stator, brush assembly, diode assembly, and rear cover. Two torque specifications are given: the through-bolts are torqued to 3.9-5.4 N·m (0.40-0.55 kg-m, 2.9-4.0 ft-lb), and the pulley nut to 49-64 N·m (5.0-6.5 kg-m, 36-47 ft-lb). An important service note states that the rear bearing, once removed, cannot be reused and must be replaced with a new one. The left margin shows partial fragments of a troubleshooting flowchart from an adjacent page referencing faulty IC-RG (IC regulator) and A.C.G. (alternator) diagnoses, but these are mostly cut off. A reader can use this page to understand alternator disassembly/reassembly order, correct fastener torques, and the bearing replacement requirement during alternator overhaul.