From: <daveleonard@cox.net>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Subject: Re: [FlyRotary] Alternator - again
Date: Wed, 24 Mar 2004 19:19:15 -0500
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> Guys,
> I'm getting really frustrated with my (stock 3rd gen) alternator. I'm 
seeing
> 13.2v on the buss when the engine is running, but the charge 
light is still
> on (even with the diode).
> 
> Answers to two questions might help me debug it:
> 
> 1. What voltage should I see on the buss with the engine 
running?
> 
> 2. The picture on the schematic seems backwards to the actual 
alternator,
> and there are no markings on the connector. Is there a way to 
test which
> terminal is the sensor (direct to battery) and which is the idiot 
light?
> 
> Note: The alternator tested fine a few weeks back, but I guess I 
could have
> fried the internal regulator since.
> 
> John Slade (coming down to the wire)
> 

John, I am seeing 14.2 volts with the alternator on.  Dont forget, 
however, that some main busses have a diode that robs you a a 
volt.

Dave leonard