CRG Discussion Forum

Camaro Research Group Discussion => General Discussion => Topic started by: hotrod68 on April 25, 2014, 06:00:48 AM

Title: 1968 speed warning indicator
Post by: hotrod68 on April 25, 2014, 06:00:48 AM
  Hi folks. Can anyone explain how the electrical part of the speed warning indicator works on a 1968 Camaro? I've gotten an aftermarket speedometer with the needle and cable, and the wiring harness. But I can't find a buzzer except on Ebay, and all of those have 3 terminals on them. The speedometer itself has black and brown wires, the harness has a pink and a white wire. Is the black speedometer wire a ground? It looks to me as if the black wire grounds to the cluster and the harness wires are both hot. Is the needle the switch that connects the 2 hot wires so that the buzzer goes off? That would explain the 3rd terminal on the buzzer, where the wire from the speedometer would plug in. If not, what makes it trigger when the speedometer indicator needle eclipses the speed warning needle? Also, when the speedometer needle gets to the preset speed, is it supposed to stop where the warning needle is set? Anything to help me understand this system would be greatly appreciated. Thanks!
Title: Re: 1968 speed warning indicator
Post by: ZLP955 on April 25, 2014, 09:58:27 AM
Although it's related to the 69 model year, this thread over at Team Camaro explains how the system functions, and why the buzzer has 3 terminals:
http://www.camaros.net/forums/showthread.php?t=267681
Title: Re: 1968 speed warning indicator
Post by: bertfam on April 26, 2014, 07:40:10 PM
Kurt asked me to post this. I drew it up a few weeks ago when I was working on mine.

Ed

Title: Re: 1968 speed warning indicator
Post by: ZLP955 on April 28, 2014, 01:05:31 PM
Nice work Ed!