Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
1997 Lexus LS 400FACTORY OEM SERVICE PROCEDURE
Generator & Regulator: Specifications
TORQUE SPECIFICATIONS
| Part tightened | N.m | kgf.cm | ft.lb |
| Bearing cover x Drive end frame | 3.0 | 31 | 27 in.lb |
| Rectifier end frame without wire clip x Drive end frame | 4.5 | 46 | 40 in.lb |
| Rectifier end frame with cord clip x Drive end frame | 5.4 | 55 | 48 in.lb |
| Generator pulley x Rotor | 110.5 | 1,128 | 81 |
| Rectifier holder x Lead wire on rectifier end frame | 2.94 | 30 | 26 in.lb |
| Voltage regulator x Rectifier end frame | 2.0 | 20 | 17 in.lb |
| Voltage regulator x Rectifier holder | 2.0 | 20 | 17 in.lb |
| Brush holder x Rectifier holder | 2.0 | 20 | 17 in.lb |
| Brush holder x Voltage regulator | 2.0 | 20 | 17 in.lb |
| Rear end cover x Rectifier holder | 4.4 | 45 | 39 in.lb |
| Plate terminal x Rectifier holder | 3.8 | 39 | 34 in.lb |
| Terminal insulator x Rectifier holder | 6.5 | 66 | 58 in.lb |
| Generator x Cylinder block | 39 | 400 | 29 |
Factory Service Tools
Use the Manual With the Right Hardware
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.