I had this same problem in my 1982 vanagon, I solved it by adding an 8 guage ground wire from the case of the alternator directly to the unibody in the engine bay. Be sure to clean off the paint first on the unibody and I dabed a bit of antisieze under the wire on both ends to prevent future corosion. The old grounds were just not working well enough. Problem solved. I just dont think the VW engineers designed the grounds to work so well after 20 years of corosion. David 1982 Westy
ate: Sat, 17 Jan 2004 00:13:10 -0500 From: Dennis Haynes <dhaynes@OPTONLINE.NET> Subject: Re: voltage over battery: 12.5-13.1 Not too good. Proper charging voltage is 13.8 volts. Does it go higher when the engine is revved? Dennis
-----Original Message----- From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of Wesley Alden Pegden Sent: Friday, January 16, 2004 11:46 PM To: vanagon@GERRY.VANAGON.COM Subject: voltage over battery: 12.5-13.1 Hey guys, I've been having some dying battery issues lately. Anyways, I replaced my battery under my autozone warranty. At an idle, with no headlights or heaters or anything on, I'm reading something like 13.1V over the termainals. Turn on some headlights, the heater fan, and maybe the rear windshield defroster, and its closer to 12.5V or 12.6V. Are these numbers about right? The alternator's new (rebuilt) as well, as of just before christmas. thanks, wes '84 vanagon
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