 Quote:
Originally Posted by Tifosi
Book here (for 55 amp internal regulator) says 3000rpm no load should produce 13.7 - 14.7V.
Full load (lights and everything going) should not drop below 12V.
It doesn't give any spec for idle speed output, but I can offer that mine puts out just about 14V with no load at idle, (Bosch 65 amp internal regulator), and never drops below 12 1/4V when things are turned on.
Book also suggests testing voltage at battery terminals rather than anywhere else as that's where the voltage has to get to when it's all said and done. (I've got a gauge hooked up in the conventional fashion too BTW)
How's your ground wire/strap and alternator junction contacts?
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Well I made progress on one thing last night ( couldn't get the Jeep's 02 sensor done though ). Even though the Alfa's ground strap connection  looked good on the frame, I took the bolt off . What I found in that when they painted the frame, they didn't scrape the paint off where the ground strap attached. So I had ground only on the bolt threads going into the body. After I corrected that faux paux, I started the car. I then tested voltage at the battery and it was 14.2  . The Voltmeter installed in the car hooked to an unused (mystery) wire under the dash was reading about 3/4 volt less (I will eventially hook the connection direct to the battery). I immediately noticed when I put the lights on that the voltmeter in the car hardly moved  . It stayed above 12 (meaning then close to 13 at the battery) with all lights on including the brights. . Tifosi, you are just so  
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Loud pipes save lives.
1973 GTV - bought 3/06, intend to keep forever
1969 GTV, #AR1530021 - sold 10/72, guess didn't intend to keep forever
Current project: '69 Corvette bought in '73, DD '73 - '80, in storage 1989-2002, now apart
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