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Discussion Starter · #1 ·
68 convertible: While everything in the dash was apart, I noticed that with the ignition in the "ON" position, and the parking brake on, the generator light was much dimmer than the brake warning light. Both were using brand new 1895 bulbs. I checked and the generator socket was reading 7V, while the brake warning light was getting 12V. Why?

The generator light and brake light both are double wire.. i. e. they are grounded at the firewall (I think) so the fact that the gauges were not installed or grounded should not matter.

I noticed a couple other slight oddities: When the ignition is turned to ACCesories, the generator and brake light both come on very VERY dim. Only a couple of volts. Otherwise all the lights work fine.
 

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The brake warning light grounds, completes the circuit, either at the parking brake switch or the distribution block. Either one is an extremely low resistance ground. The gen light grounds through a resistor on the regulator then through the field winding of the alternator. The increased resistance of the gen light circuit is the reason the light is not as bright.
 

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Discussion Starter · #3 ·
Thanks Elree.
 
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