Distributor installation
angeldust72
If you need to check the air gap on the reluctor, make it easy on yourself and check it with the distributor out of the engine. It's a whole lot easier to do at a work bench where you can really get at it and get a clear picture of what you're doing. Once it's set, it won't change after the distributor is installed back in the engine. If the distributor is new, it should be already set, but there's no harm in checking it to be sure. You 'll need a brass or non mettallic gauge to check it as the reluctor acts as a magnet and will grab a metal gauge.