Hello everyone. I have installed an HEI distributor to my 350 engine. I connected my tach and it worked fine. Then I noticed the next day it was not working. The image you see is how I have it connected. The far left gray wire is for the bulb. The black wire to the right goes to the HEI (where it has a Tach connection). The lower right gray/yellow wire is my ground. The far right brown wire is connected to my fuse box. I have looked everything over and still can't figure out why it will not work again. I have used my indicator light to see if power is going to the Tach and it lights up. Could I have a bad ground connection? Can a tach get a short and stop working?
Hay Dave thanks for asking. I think mine is a generic made in America from Ebay. What i dont understand is why have a Tach indicator where i can connect my Tach, work fine one day and then stop working. Could it be the Tach connection for the HEI is now no good? I will have to take it apart and see. Any thoughts? Dave thanks for Responding