alternator wires - The 1947 - Present Chevrolet & GMC Truck Message Board Network

mnunn454 · 07-12-2007, 06:44 PM

In layman's terms, the heavy red wire connects to the alternator's output. It's probably a AWG 10 diameter if memory serves. It gets bolted to the big (#12-32?) single pole threaded terminal sticking out of the alternator.

Little brown wire (about a #18 or 20 AWG) goes to the plug in terminal and excites the alternator's field so the alternator will know how much amperage to produce.

No, the alternator doesn't need grounding. It already is by virtue of the engine brackets its bolted to.

There's also some decent threads with pictures on this if you'll use the "search this forum" button.

07-12-2007, 06:44 PM	#2
mnunn454 Registered User Join Date: Dec 2006 Location: Rhode Island Posts: 602	Re: alternator wires In layman's terms, the heavy red wire connects to the alternator's output. It's probably a AWG 10 diameter if memory serves. It gets bolted to the big (#12-32?) single pole threaded terminal sticking out of the alternator. Little brown wire (about a #18 or 20 AWG) goes to the plug in terminal and excites the alternator's field so the alternator will know how much amperage to produce. No, the alternator doesn't need grounding. It already is by virtue of the engine brackets its bolted to. There's also some decent threads with pictures on this if you'll use the "search this forum" button. __________________ 69 C-10 SWB Fleetside 454/TH400 (For Sale) http://67-72chevytrucks.com/vboard/c...ct=1299&cat=12 70 El Camino 454 TH700 29 Model A 4-DR Sedan Deluxe Last edited by mnunn454; 07-12-2007 at 06:45 PM.



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