Thread: No Ammeter
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Old 08-01-2018, 07:38 PM   #4
ray_mcavoy
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Join Date: Nov 2009
Location: Sherman, ME
Posts: 2,354
Re: No Ammeter

Yes, if you can find a suitable spot to add an ammeter to the instrument cluster, you can simply connect it to the 2 ammeter wires provided in the new harness. That should result in a connection like the diagram VetteVet posted.

Or, if you don't want to use an ammeter, you could splice the 2 wires together. If the wires are pre-terminated with ring terminals, a small machine screw with a nut & lock washer could be used to join them together. And no matter how you connect them, make sure the connection is well insulated (like with a couple layers of heat shrink tubing) to avoid a short circuit to ground. These wires are live all the time and prior to the mid 60's, the GM harnesses did not contain any fusible links or fuses to protect the main feed wire off the battery. Speaking of which, adding a fusible link (as shown in VetteVet's diagram) is a good idea if the new harness doesn't already have one.
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