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Old 07-13-2003, 02:19 PM
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Idiot light ?

I have installed a new Haywire 14 circut kit in my Camstar with a 350/350 and the alternator (Delc Remy SI-10)has been hooked up by the heavy red with fusable link to the bat. side of the remote solenoid and the wire (white) with the added diodes (anti-engine run on) to the brown alternator wire from the fuse panel. The engine is not yet running but I would like to install an idiot light in the system and am wonder what would be involved as to type of light, location in circut and a circut diagram. Thanks for any help or leads.

Jim

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Old 07-13-2003, 05:06 PM
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Jim-
This is copied from the M.A.D. Enterprises Alternator Wiring Kit Manual.
www.madelectrical.com/index.shtml

A minature bulb, wired in-line (in series) between the ignition switch and the #1 terminal, will conduct sufficent current to switch the electronic voltage regulator ON. (GM equipped many cars with SI alternators using this wiring method.)

After the engine is started, and the alternator is producing output, electronics in the regulator will send 14 volts from the #1 terminal back toward the warning light. In this operation, the ignition switch will be sending 14 volts to one side of the light bulb, and the alternator will be sending 14 volts to the other side of the light bulb. With 14 volts at each side of the light bulb, no current will flow through the light bulb filament, and the light goes out.

Most types of defects that will keep the alternator from producing current will cause the #1 terninal to behave as a ground for the light bulb. In that case the ignition switch will supply power to one side of the light bulb, and the #1 terminal will ground the other side of the bulb, and then the bulb will light up to warn of a problem.

That sure explaned it to me in a way that even I could understand.
Hope it helps.
ED
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Old 07-13-2003, 11:31 PM
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Idiot lights

Thanks very much Ed! That is such a clear explanation. It makes a lot of sense to me once it is explained. As soon as I read your reply I understood it. It makes good sense. Thanks again.

Jim
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