<VV> Re: VirtualVairs Digest, Vol 27, Issue 131

[djtcz at comcast.net]

How much wiggle is there in the points cam/rotor shaft?  The dwell should respond to changes in points gap.  Too little dwell is too much gap.  How steady is your ignition timing mark at idle, and revved up?  I believe dwell meters do quite a bit of averaging, so they report one number no matter what is happening cylinder-to-cylinder or moment to moment.  A timing mark that jumps more than a few degrees is indicating an instability that is doing no good.

--
Dan Timberlake

-------------- Original message -------------- 
Message: 12
Date: Sun, 29 Apr 2007 21:49:07 -0400
From: "John McMahon" <latin81 at comcast.net>
Subject: <VV> Dwelling on dwell....
To: "Virtual Vairs" <virtualvairs at corvair.org>
Message-ID: <007301c78ac9$bdfafa70$84877d18 at MARYXMAS>
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Hi,

I've got a 1965 Monza with a 110 MT, and I'm a little confused about the 
dwell readings I'm getting.  I've varied the gap between .016 and .019, and 
my meter keeps telling me that I've got 27 degrees of dwell (should be 31 to 
34).  This is only the second vehicle I've worked on that has points, so I 
don't know if there's a problem with the ignition or a problem with me!  Any 
clues would be greatly appreciated.

Thanks,

John McMahon