<VV> Dim lights at idle

[Mark Durham]

Jim, I'm running a two wire alt system in my em, and the regulator is
adjustable. You may have to drill out the two rivets holding the cover
on, when off, you will find a set of points that creates a charging
circuit when one way, and lowers voltage when the other. As voltage
increases, the magnetic field of the coil underneath the points pulls
the circuit open, so there is a fight between the magnetic pull, and a
spring trying to move the point arm the other way, so at the adjusted
voltage the point spring and magnetic pull cycle in amounts we normally
do not see on a meter, but it's at the correct voltage. You adjust the
voltage up or down by changing the spring tension.
Some have a screw for this, most you bend the arm ..
Your points may have stuck in the charge position. If you can get it
apart, file the point surfaces smooth, the readjust to about 13.5 to 14
volts. Mark Durham


Sent from my Windows Phone
From: James Cooper
Sent: 2/19/2012 11:26
To: frankcb at aol.com; virtualvairs at corvair.org
Subject: Re: <VV> Dim lights at idle

I'm surprised it hasn't burnt out bulbs already.  I'm in the process
of ordering a new regulator now.Jim
 > From: FrankCB at aol.com
> Date: Sun, 19 Feb 2012 11:32:25 -0500
> To: cooperj123 at msn.com; virtualvairs at corvair.org
> Subject: Re: <VV> Dim lights at idle
>
> James, 17.5 volts will burn out your light bulbs and WAY overcharge your
> battery!  Get a new voltage regulator before that happens.
> Frank Burkhard
> Boonton, NJ
>
>
> In a message dated 2/19/2012 11:26:39 A.M. Eastern Standard Time,
> cooperj123 at msn.com writes:
>
>
> The  dash ground seems to be ok.   I put a meter on the car and it was
> 12.7 volts before running and then running with the alternator loaded up the
> voltage is high - reading 17.5 volts. Yikes!     Cables ohm out  ok.  Voltage
> regulator maybe stuck?Jim
> Date: Sun, 19 Feb 2012 07:23:52  -0700
> Subject: Re: <VV> Dim lights at idle
> From:  vair65 at sisna.com
> To: cooperj123 at msn.com
>
> check the dash ground screw  along the steering column. it's a known
> problem with lm's-mike  mann
>
>
> On Sat, Feb 18, 2012 at 8:55 PM, James Cooper  <cooperj123 at msn.com> wrote:
>
>
>
>
>
> Hello All,  We  took our '65 Monza sedan out for a bit of driving after
> dark tonight and I  noticed something I had not before.  When at a stop light
> at idle and  especially with the PG transmission in drive, the dash lights
> get really  dim.  I don't really notice the headlights getting dim but the
> dash  lights sure do, almost to dark.  And then when driving away and the
> engine revving up the dash lights come back to normal, but not  instantly.  I
> will  put a voltmeter on the car tomorrow and check it  out but I wanted to
> see if this was a common thing with LM Corvairs.  I  remember getting low
> output from the earlies with a generator.   I  would expect some voltage drop at
> idle but I'm not sure why it is so bad at  the dash lights-  because of the
> dimmer circuit?The battery in the car is  a new one and the wiring I
> checked was good.  Maybe I have a weak  alternator and its time for a fresh one
> and new regulator.  I don't know  the age of what is in the car  now.Jim
>
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