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 Mercury Capri Base, AutomaticFACTORY OEM SERVICE PROCEDURE
Commutator Test
- Clean surface of commutator and polish with No. 400 grit sandpaper (if required). If surface is scored, out of round or pitted, turn commutator on a lathe.
- Maximum commutator runout and minimum diameter of commutator must not exceed specification after turning. See STARTER MOTOR SPECIFICATIONS table.
- Commutator mica undercut depth should be .02-.03" (.5-.8 mm). If undercut depth is not within specification, undercut with a hacksaw blade to standard depth.
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Disclosure: Verified tool recommendations may earn an affiliate commission at no 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.
Rather have a pro handle this?
A certified mobile mechanic comes to your home or office. They bring the tools, you stay comfortable. No tow truck, no waiting room, no surprises.
Comes to youSame-day available12-month warranty
Get a Free QuoteNo obligation. See pricing before you book.