I did not know where to post this, so giving this place a shot. I bought a reproduction Hood tachometer of this site. Never used in original unopened box. It is good for both hei and points. I connected it and it will work for another five minutes then stop working. The lights still work and all. If I shut it off, wait a couple of minutes, restart car. Tachometer will work for another few minutes then shut off. My in dash tachometer works great, with no issues. Any suggestions as way could be issue or how I can fix it? Thanks
People on here have mentioned someone that repairs them. Maybe someone can offer up his contact info and talk to the guy about some insight or how much he would charge to repair if that is the case.
Scott Moody (87GN_70GS) repairs all kinds of Tachometers. Send him a PM. https://v8buick.com/index.php?members/87gn_70gs.1236/