Home » feeler-gauges » How do you set distributor points with a feeler gauge? How do you set distributor points with a feeler gauge? Chris 29th February 2020 How to set distributor points with a feeler gauge Shop for Feeler Gauges Step 1 – Insert feeler gauge Insert the feeler gauge between the two contact points. Step 2 – Set air gap The air gap between the contact point and stationary contact point should be set so that the voltage is able to jump across when the points align. See the manufacturer’s recommendations for actual air gap size. Step 3 – Set rubbing block The rubbing block should be set at the high point (resting on a corner) of one of the distributor cam lobes before measuring. Step 4 – Use gauge to measure new gap To adjust, move the stationary point out by tightening (not too tight) or loosening the holding screw. Use your feeler gauge to measure the newly set distributor point gap.