LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Lincoln >> 1981 >> Mark VI Base, 4D Sedan >> Repair and Diagnosis >> Engine Performance >> Ignition System >> MOTORCRAFT EEC III Ignition System >> Testing >> Fouled Spark Plug Check
July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

Fouled Spark Plug Check

  1. Remove distributor cap. Connect 500V DC megohmmeter between each spark plug wire at distributor and engine ground.
    NOTE: If megohmmeter is not available, proceed to Power Balance Check .
  2. If reading is more than 50 megohms, spark plug is OK. If less than 50 megohms, check spark plug wire. If good, replace spark plug.
scientia non olet · About LEMON Manuals