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.
2002 Isuzu Axiom Base, RWDFACTORY OEM SERVICE PROCEDURE
Bench Testing: Armature
- Measure the outer diameter of commutator, and replace with a new one if it is out of limit. See Fig 1. SeeSTARTER SPECIFICATIONS .
- Check for continuity between segment and segment on the commutator. Replace commutator if there is no continuity. See Fig 2.
- Check for continuity between commutator and shaft. Also, check for continuity between commutator and armature core, armature core and shaft. Replace commutator if there is continuity. See Fig 3. See STARTER SPECIFICATIONS .
- Measure runout of the commutator with a dial gauge. SeeFig 4. Repair or replace, if it exceeds the limit. See STARTER SPECIFICATIONS .
- Polish commutator surface with sandpaper #500 to #600 if it is rough. See Fig 5.
- Measure the depth of insulator in commutator. Replace, if it is below the limit. See Fig 6. See STARTER SPECIFICATIONS .
Factory Service Tools
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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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