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Alternator Testing

To: spitfires@autox.team.net
Subject: Alternator Testing
From: Alan.McEachran@anixter.com
Date: Mon, 5 Jul 2004 10:12:03 -0400
My 78 Spitfire with the Lucas alternator has totally failed to keep my
battery charged.  I had a "no start" fail the other dya with no lights left
on from the previous ride.  She has never had any such issues in the past 4
years that I have owned her.  Now, when boosted and running, the engine
ticks over just fine, but turn signals, headlights, virtually all
electricals are literally dim.

I suspect the alternator as my problem.  My Haynes says I can do a rough
check on it by connecting an Ampmeter in series between the brown wire from
the alternator and the starter.  I'm no electrical whiz, but I do have a
nice Fluke Digital Multimeter that I'm sure I could fry if I fought the
need for advice.

Assume that I have never seen either an alternator or a multimeter before.
Does anyone have a procedure for dummies I could follow?

Alan
78 Spitfire 1500
Mississauga, Ontario





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