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Date:         Tue, 11 May 2010 19:03:21 -0500
Reply-To:     Michael Sullivan <sandwichhead@GMAIL.COM>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Michael Sullivan <sandwichhead@GMAIL.COM>
Subject:      Re: Short Question
Comments: To: David Beierl <dbeierl@attglobal.net>
In-Reply-To:  <4be9ed12.1716e30a.576c.4e97@mx.google.com>
Content-Type: text/plain; charset=ISO-8859-1

Michael in San Antonio 91GL Weekender AT 2.1L 'Gringo' 73 Beetle

On Tue, May 11, 2010 at 6:43 PM, David Beierl <dbeierl@attglobal.net> wrote:

> Hey Michael, > > > > > > You need to establish two things to begin with -- a) is your alternator > putting out the right stuff, alt is putting out 13.75 at main battery per > 2 checks.and b) are your batteries ok. so, yes, I assume When you say > "dropped...after starting..." do you mean that the engine was still running? > I'm guessing you don't.Oh yes I do. keeps dropping while running. Drove > a block and came back home becuase got as low as 10.89. > > After you make sure the alt is charging, pull the ground on the starting > battery and drop a load across it -- some stoplight bulbs, headlight, > blower, something that draws ten amps or so. Run it for five or ten > minutes, watch what the voltage does while it's running and what it is after > you stop. I think your starting battery is bad.Will come back to this > later. > > As to the radio, I'm pretty sure you'll find if you measure that it's > actually hooked to the starting battery. William of Ockham won't lie quiet > in his grave until you've proved that one way or the other.I pulled the #3 > fuse and hardwired a .25 spade to the upper slot in the #3 socket and 20amp > in-line fuse then straight to aux battery power distribution post. > Batteries are seperated by 1315 and then a wire from positive of each > battery to SPDT switch tied to new cig lighter adapter for the voltage > meter. Let's me monitor both batteries by switching SPDT. Worked fine for > over a week. This sever drop started this morning at startup.

Thanks to you David.

> > > Yours, > David > > >


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