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.
2000 Infiniti Q45 BaseFACTORY OEM SERVICE PROCEDURE
Starter Specifications
STARTER SPECIFICATIONS (G20 & I30)
| Application | Specification |
|---|---|
| Minimum Commutator Diameter | 1.102" (28.0 mm) |
| Minimum Brush Length | .413" (10.5 mm) |
| Brush Spring Tension | 2.9-4.0 lbs. (1.3-1.8 kg) |
| Pinion Front Edge-To-Stopper Clearance | .012-.098" (.3-2.5 mm) |
STARTER SPECIFICATIONS (QX4)
| Application | Specification |
|---|---|
| Minimum Commutator Diameter | 1.134" (28.8 mm) |
| Minimum Brush Length | .276" (7.0 mm) |
| Brush Spring Tension | 4.1-5.6 lbs. (1.9-2.5 kg) |
STARTER SPECIFICATIONS (Q45)
| Application | Specification |
|---|---|
| Minimum Commutator Diameter | 1.236" (31.4 mm) |
| Minimum Brush Length | .433" (11.0 mm) |
| Brush Spring Tension | 7.1-8.6 lbs. (3.2-3.9 kg) |
| Pinion Front Edge-To-Stopper Clearance | .020-.079" (.5-2.0 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.
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