Distributor Shaft & Bushing Wear Test

1. Remove distributor from vehicle and clamp distributor in a vise. Use extreme caution not to damage distributor.
2. Attach a dial indicator to housing so plunger rests against reluctor sleeve.
3. Place a wire loop around reluctor sleeve and hook a spring scale on the other end of the loop. Apply a 1-1/2 lb. pull toward dial indicator. Apply a 1 lb. pull away from dial indicator and read movement on indicator.
4. Movement must not exceed .006 inch. If movement exceeds limit, replace either housing or shaft to bring movement back within tolerance.