[FC] gen light

[Andy .]

Does the light come on with the motor off and the key in the run position?  If not, your problem isn't back with the alt/regulator at all.  The bulb has 2 leads going to it : 12v from the ignition switch and a lead going back to the regulator.  The key one should be 12v or nothing... never grounded.  The one that goes to the regulator does the switching for the light.  When the alternator stops charging, that wire is grounded and supplies a ground to the light and it glows.  During normal charging, that wire is 12v (14v... battery voltage).  So the light is out when both leads are seeing +12v.  It almost sounds like you could have a short to ground somewhere in the ignition switch, the wire from the switch to the light, or possibly the bulb housing is grounded.  I don't have one in front of me to look at right now.  I assume they are mounted in plastic sockets or something to isolate the bulb from possible ground.  Something to look in to maybe.

 

> From: wern3 at juno.com
> Date: Tue, 25 Oct 2011 15:30:06 +0000
> To: corvanatics at corvair.org
> Subject: [FC] gen light
> 
> GentlemenI am still sorting out the red "GEN" light on Rampys dash.Last night i installed a brand new voltage regulator. After that I unwrapped the wire harness in the engine compartment to check each wire for any shorts and found none. I also replaced the plastic clip holding the blue and brown wire going into the alternator with two new female soldered - on spade connectors that have a sure grip on their respective connections.The former grey plastic plug with its 2 wires did not really fit the opening in the back of my alternator, it was slightly too large and stuck in the rectangular opening there.My reward for all the work is that now the red light seems brighter than before, and it no longer goes out when I rev the motor. I have seemingly made the problem worse.Next i will buy a voltmeter and follow the test procedures in the shop manual.I have lost pages 3&4 of the tech guide that I had followed in 2008 to convert the truck from generator - to - alternator, as I remove
> d that page from my 3 ring binder to take it under the hood.Could I ask anyone to email that page to me? I will be rechecking all the connections I made during that swap.ThanksTim W. '61 Rampy 140 4 -spd.
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