<VV> Dim lights at idle

[FrankCB at aol.com]

James, that does NOT make sense.  If you have a 0.4 (FOUR  TENTHS) ohm 
resistance between the positive battery terminal and the clamp  that goes around 
it, then trying to "pull" 100 amps from the battery through  that 
connection to work the starter will cause a FORTY volt drop ( E =  I x R or voltage 
drop = current flow x resistance).  Even a 0.04 ohm  resistance would cause a 
FOUR volt drop leaving only 8 volts to work the  starter.
It's very difficult to DIRECTLY measure these very low resistances.   It's 
generally better to measure the voltage drop across the connection when a  
high current (like running the starter) flows through the connection.  Or,  
even better, measure the voltage ON the starter terminal to check out the  
resistance of the entire circuit going to the starter.
If you're NOT having starting problems, then get a new voltage  regulator.
Frank Burkhard
Boonton, NJ
      
 
 
In a message dated 2/19/2012 11:33:39 A.M. Eastern Standard Time,  
cooperj123 at msn.com writes:


Yep,  .4 Ohm on each.
From: HallGrenn at aol.com
Date: Sun, 19 Feb 2012 11:30:00  -0500
Subject: Re: <VV> Dim lights at idle
To: cooperj123 at msn.com;  virtualvairs at corvair.org








Did you check  differences from top of the battery posts to the cable 
clamp.   Corrosion at the inside surface of the clamp is a common 
problem.  If  the readings aren't the same then clean the posts and  
clamps.

Bob


In a message dated 2/19/2012 11:26:39 A.M.  Eastern Standard Time, 
cooperj123 at msn.com writes:
Cables 
ohm  out ok.                    
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