1985 Subaru RXFACTORY OEM SERVICE PROCEDURE

Ignition System - HITACHI (4WD): Testing: Distributor

  1. Check cap and rotor for cracks or other damage. Ensure that carbon brush on cap protrudes at least .087" (2.2 mm). Check air gap. Turn rotor counterclockwise and make sure it returns to original position.
  2. Apply 12 in. Hg to vacuum diaphragm. Check that diaphragm rod moves. Ensure that diaphragm does not leak. Release vacuum and make sure rod returns to original position.
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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.