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Username Post: Killing alternator with a relay        (Topic#357916)
Senior Member
Posts: 405

Loc: San Diego, California
Reg: 02-19-01
09-02-19 07:10 PM - Post#2774709    

I've got a two post kill switch mounted on my rear bumper and when I turn it off the car continues to run...I knew this phenomenon when I installed it. I don't really want to run the alternator wire all the way back to the switch. I experimented a little and found that when I disconnect the exciter wire on the alt after I turn the kill switch off it will stop the motor immediately. So I was wondering if I could use a regular relay that will turn on with the ignition yet turn off when I throw the cut off switch. And if so will I damage the alt in any way.


Ultra Senior Member
Posts: 11288
Reg: 03-25-05
09-03-19 06:13 AM - Post#2774727    
    In response to Marcus

Did you try opening the exciter circuit above idle speed? The exciter may not kill the alternator output above idle speed.

66 Corvair (driving)
57 2dr HT (driving)
56 2dr HT (waiting to be restored)

Senior Member
Posts: 405

Loc: San Diego, California
Reg: 02-19-01
09-03-19 11:57 AM - Post#2774744    
    In response to acardon

Ah...I did not...good point. Ill try it when i get home tonight. Thanks so much.


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