[Spridgets] Electrical help-Alternator conversion

[David G]

This is the best/clearest explanation of how it works that I've found. I think it will answer your questions.
Dave

http://www.madelectrical.com/electricaltech/remotevoltagesensing.shtml

http://www.madelectrical.com/electricaltech/onewire-threewire.shtml
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From: Spridgets <spridgets-bounces at autox.team.net> on behalf of Mark Haynes via Spridgets <spridgets at autox.team.net>
Sent: Friday, March 1, 2024 11:42 AM
To: Spridgets list <spridgets at autox.team.net>
Subject: [Spridgets] Electrical help-Alternator conversion

I'm sliding down this slippery slope of modification and need some help.
I'm trying to put a ND 3 wire alternator into my BE. It's already converted to Negative ground and I'm intending on rewiring the regulator per Barney Gaylord to just use it as a terminal block.
Here's the issue, the alternator has a Battery Positive Sense (S) terminal, a Keyed Battery Ignition (I) terminal and an Indicator Light (L) terminal.
I'm assuming that the S terminal should get the 'fat' brown wire that used to go to the D terminal on the regulator (new placement the A terminal after rewiring), and that the L terminal goes to the small yellow wire to feed power to shut off the charge light.
Do I need to wire the I terminal (Keyed battery ignition) so that it sees power when the ignition switch is on (the white wire at A1 of the regulator), or is this redundant and unnecessary?
TIA, the new engine/5 speed/speedhut tach & speedo are all coming together to drive this spring!
Mark Haynes
It only goes one way- Pay It Forward
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