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Scott Novak
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Joined: October 12, 2004
Posts: 1586
Location: Minneapolis, Minnesota
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PostPosted: Tue Oct 27, 2015 11:13 pm    Post subject: Reply with quote

If you are going to add a diode, use a higher voltage diode. There can sometimes be high voltage spikes when starting the engine.

I'd use a diode with at least a 200V rating.

Scott Novak
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Dale M.
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Joined: April 12, 2006
Posts: 20379
Location: Just a tiny bit west of Yosemite Valley
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PostPosted: Wed Oct 28, 2015 7:35 am    Post subject: Reply with quote

Aerindel wrote:
Yep. The idiot light isn't just a light, its a resistor that sets up the field charge to make the alternator work. It also has to be a 'real' light bulb, an LED won't cut it.


A LED can work if done properly....

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Dale
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All suggestions and advice are purely my own opinion. You are free to ignore them if you wish ...
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