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.
1992 Lexus SC 400FACTORY OEM SERVICE PROCEDURE
Repair and Diagnosis: Electrical: Starter: Overhaul
NOTE:
Overhaul procedures are not available from manufacturer. See STARTER OVERHAUL SPECIFICATIONS table and Figure-12
.
STARTER OVERHAUL SPECIFICATIONS (ES300 & SC300)
| Application | Specification |
|---|---|
| Brush Length (Limit) | .394" (10.0 mm) |
| Brush Spring Tension | 3.9-5.3 Lbs. (1.8-2.4 kg) |
| Commutator Diameter (Minimum) | 1.142" (29.0 mm) |
| Commutator Runout (Maximum) | .002" (.05 mm) |
STARTER OVERHAUL SPECIFICATIONS (LS400 & SC400)
| Application | Specification |
|---|---|
| Brush Length (Limit) | .374" (9.5 mm) |
| Brush Spring Tension | 6.0-7.3 Lbs. (2.7-3.3 kg) |
| Commutator Diameter (Minimum) | 1.339" (34.0 mm) |
| Commutator Runout (Maximum) | .002" (.05 mm) |
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.