Re: hph's 55 Clipper Project
Posted by HH56 On 2023/12/23 22:19:09
No relays involved in the BAT or OIL indicator light circuits. First check the instrument cluster fuse under the dash. The holders are particularly prone to oxidation. If fuse and holder is good then BAT light wiring is a direct run with one side spliced in the wire between the GEN (or ARM) terminals at regulator and generator, the other side going to the ign switch via the instrument cluster fuse.
Here is a somewhat generic simplified drawing of the BAT indicator light and how it fits into the overall charging system. The actual Packard circuit is not shown in the drawing but for 55-6 Packard has wire 25-pink connecting to the fuse and ultimately the ign sw while wire 3A-brown goes to the GEN terminal at the regulator/generator via a splice.
Bulb gets voltage from ign switch and is grounded thru the generator. As long as no voltage is being produced by the generator bulb burns bright. As the generator starts putting out voltage, once both sides match the bulb goes out. It can flicker at idle speeds when the cutout relay is turning on and off or be dim if the generator is still putting out at a low enough voltage that the potential difference is able to have current flow.
Attach file:
Charging Circuit.JPG (419.28 KB)
Here is a somewhat generic simplified drawing of the BAT indicator light and how it fits into the overall charging system. The actual Packard circuit is not shown in the drawing but for 55-6 Packard has wire 25-pink connecting to the fuse and ultimately the ign sw while wire 3A-brown goes to the GEN terminal at the regulator/generator via a splice.
Bulb gets voltage from ign switch and is grounded thru the generator. As long as no voltage is being produced by the generator bulb burns bright. As the generator starts putting out voltage, once both sides match the bulb goes out. It can flicker at idle speeds when the cutout relay is turning on and off or be dim if the generator is still putting out at a low enough voltage that the potential difference is able to have current flow.
Attach file:
Charging Circuit.JPG (419.28 KB)
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