I have gotten some to work again by applying power and giving them a good whack at the same time (coil gets stuck and won't vibrate). I know that is not a very precise way to troubleshoot though! I have also ended up tossing some (or letting them sit in my shop for 15 years thinking one day I will learn something more and fix it!)


Mike
1955 Chevy 6400 ex-flatbed (no bed now!) sold September 2023
In the Stovebolt Gallery
1958 Chevy 6400 flatbed W/dump
In the Stovebolt Gallery
1959 Chevy Suburban Owned for almost 20 years, Daily Driver -- sold May 2016
In the Stovebolt Gallery

Sufficient unto the day is the evil thereof