Bench Testing: Commutator

1996 Isuzu Oasis SSECTION Commutator
CAUTION: Some starters have a molded-type commutator. DO NOT undercut insulation, as serious damage to commutator may result.

If commutator out-of-round is more than .002" (.05 mm), correct by turning commutator on a lathe. See STARTER SPECIFICATIONS  table for wear limits.

RENDER: 1.0x

NO RELATED

Recommended Tools & Savings

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Affiliate disclosure: We may earn a commission at no extra cost to you.

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.