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Date:         Thu, 31 Jul 2003 08:52:42 -0400
Reply-To:     Jay L Snyder <Jay.L.Snyder@USA.DUPONT.COM>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Jay L Snyder <Jay.L.Snyder@USA.DUPONT.COM>
Subject:      Re: Alternator Charging Woes
Comments: To: "Barry E. Muller" <bmuller@UTOLEDO.EDU>
Content-Type: text/plain; charset=us-ascii

Check the voltage right on the alternator first? If it is good, problem is downstream wiring. Belt OK? Alternator would be grounded through the engine mounting points.

Jay

"Barry E. Muller" <bmuller@UTOLEDO.EDU>@gerry.vanagon.com> on 08/25/2035 12:39:31 AM

Please respond to "Barry E. Muller" <bmuller@UTOLEDO.EDU>

Sent by: Vanagon Mailing List <vanagon@gerry.vanagon.com>

To: vanagon@GERRY.VANAGON.COM cc: Subject: Alternator Charging Woes

Hello All,

I am having probs with my alternator charging. A short history:

1) Replaced my engine with a rebuild. 2) At 180 miles after the swap the engine dies - battery is obviously low as the flashers quit after about 20 minutes - and the van gets towed home. 3) Have battery recharged (trickle) and test to hold load - all OK according to the shop 4) Check voltage across battery at 2-3,000 RPM - 11 volts 5) Clean off voltage regulator 6) check voltage as above - same result 7) get new, rebuilt alternator - still no joy but does show a little increase to 12Volts at 3,000 RPM 8) suggestion made to check LED - does not turn on. 9) Get new LED - still no joy. 10) Finally (hey the van is a 91 - figure all those things may need to be replaced anyrate) check the Bently procedure to trouble shoot the LED and charging system (wow - considering all the omissions in that manual didn't dream that they'd have such a detailed description of this). 11) So grounding the D+ term causes the LED to light up when switching on the ignition. Of all the possibilities to resolve with that result to the test the only one that makes sense is that the alternator isn't grounded properly/well.

Question #1: can any one help describe where all the grounding straps are supposed to be? I have not been able to get that info out of the Bently. I have a smallish red wire that leads from the left head to the body just below the coil. Or is the ground through the negative terminal on the battery? Because that looks a little rusty (odd being in the van and all)

Question #2: Does anyone have another explantion/resolution to this problem?

Thanks in advance,

Barry Electrically clueless in Toledo.

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