Author Topic: Hot resistance wire  (Read 241 times)

myblue67

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Hot resistance wire
« on: September 11, 2017, 10:46:37 PM »
So tuning up car after new points etc and engine died. Was doing other things and forgot to turn key off for maybe 5 minutes when I noticed wiring harness melting... Damn I said! The resistance wire was super hot? I know what it's supposed to do but wouldn't think it would get that hot no matter how long key left on. Any thoughts?

L78 steve

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Re: Hot resistance wire
« Reply #1 on: September 12, 2017, 04:21:52 PM »
Key on, points open, not a problem. Key on, points closed (making contact) makes the + wire hot.
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myblue67

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Re: Hot resistance wire
« Reply #2 on: September 12, 2017, 11:53:19 PM »
Thanks Steve, makes sense but seems a bit risky way to design a circuit. Seems like a a fuse or breaker should kill it before it catches the car on fire.