Toyota Pick-ups/Land Cruiser/4Runner 1989-1996




The air gap is NOT adjustable. If the gap is not within specifications, the distributor must be replaced.

  1. Remove the distributor cap. Inspect the cap for cracks, carbon tracks or a worn center contact. Replace it if necessary, transferring the wires one at a time from the old cap to the new one.
  3. Pull the ignition rotor (not the signal rotor) straight up and remove it. Replace it if the contact is worn, burned or pitted. Do not file the contacts.
  5. Turn the engine over (you may use a socket wrench on the front pulley bolt to do this) until the projection on the pickup coil is directly opposite the signal rotor tooth.
  7. Use only a non-ferrous (paper, brass, or plastic) feeler gauge set. This means that they are non-magnetic; if you have any doubt, check the feeler with a magnet. If the magnet sticks, don't use that feeler gauge.
  9. Select a non-ferrous feeler blade of 0.02 in. (0.30mm) thickness, and insert it into the pick-up air gap. The gauge should just touch either side of the gap. The permissible range is 0.008-0.016 in. (0.20-0.40mm) except for 1989-90 Land Cruisers. These vehicles require only that the gap be greater than 0.001 in. (0.2mm).