LUCAS Alternators: Overhaul: Testing: Stator

Connect 12-volt battery and 36-watt test lamp to 2 of the stator connections. Repeat test using any other combination of 2 of the 3 connections. If lamp fails to light in either test, stator has an open coil. Using 110-volt/15-watt test lamp, check for insulation between any one of the 3 stator connections and stator laminations. If lamp lights, stator should be replaced.