Air Gap

Using a flat, non-magnetic feeler gauge, check air gap between pick-up coil and reluctor. See Fig 1 and Fig 2 . Air gap should be within .008-.016" (.20-.40 mm).
If air gap is incorrect, remove ignition coil (if equipped) and replace distributor assembly. On the Pickup/4Runner (22R, carbureted engine), replace pick-up coil assembly.

Fig 1: Checking Pick-Up Coil Air Gap, Pickup/4Runner (4-Cyl.)

Fig 2: Checking Pick-Up Coil Air Gap, Pickup/4Runner (V-6)