Ferrari Mailing List: Re: Alternator idiot light

[Martin Stark (MStark]

About 25mv AC measured at the battery.  I looked at the wiring diagram, 
but it is of the "block" style - not much detail.

Charles Perry wrote:

> Two thoughts:
>
> 1. Could also be one or more diodes failing. You might put an AC
> voltmeter on it to see if there is a significant AC component.
> 2. I don't have my TR wiring diagram here, but it is common to have more
> than one feed from the alternator. For example, you could have a direct
> connection to the battery and a secondary connection to the
> fuse/distribution panel. If those feeds have different feeds/fusible
> links, you could pop one while still having the other intact. This has
> happened to me before on my Corvette.
>
> Good luck!
>
> -- charles
>
>
>
>
> -----Original Message-----
> From: Martin Stark [mailto:MStark [at] Copper.net] 
> Sent: Friday, June 13, 2008 2:17 PM
> To: Charles Perry
> Cc: The FerrariList
> Subject: [Ferrari] Alternator idiot light
>
> The alt idiot light is staying brightly lit on my '87 tr.  The weird
> part is that voltages as measured at the battery appear normal (about
> 13.5v) under light or heavy load.  I'm thinking failed regulator.  Any
> thoughts???
> _________________________________________________________________
> To unsubscribe or modify your subscription options, please visit:
> http://lists.ferrarilist.com/mailman/options/ferrari/charles%40carolina-
> sound.com
>
> Sponsored by BidNip.com eBay Auction Sniper http://www.BidNip.com/ and
> F1 Headlines http://www.F1Headlines.com/
>
>