Noisy Generator
- Loose or worn generator drive belt.
- Loose drive pulley.
- Loose mounting bolts.
- Worn or dirty bearings.
- Defective diodes or stator.
- Bent pulley flanges.
- Interference between rotor fan and stator leads.
- Rotor fan or rotor damaged.
- Rectifiers shorted open.
- Open, grounded, or shorted rectifier wiring.
- Defective regulator.