<VV> Baffled- Fuel Problem

[RoboMan91324 at aol.com]

Ray,

Is there a possibility that as the fuel was pulled from the tank in your 
initial 25 mile trip it created a vacuum in the tank?  If this was the case, 
topping off the tank may have solved the problem (temporarily) by releasing the 
vacuum, not the addition of a couple of gallons of fuel.  You will be able to 
prove or disprove this easily by driving around to see if the problem recurs and 
then removing the filler cap to see if the problem goes away.  Was there a 
hissing sound when you removed the cap the first time?

Just a thought.

Doc
~~~~~~~~~~~~~~~~~~
In a message dated 5/5/2005 8:05:50 AM Pacific Daylight Time, 
virtualvairs-request at corvair.org writes:

> Message: 3
> Date: Wed, 04 May 2005 08:59:41 -0500
> From: Ray Lough <rndracing at mebbs.com>
> Subject: <VV> baffled
> To: virtualvairs at corvair.org
> Message-ID: <6.0.0.22.1.20050504085057.02662560 at mail.mebbs.com>
> Content-Type: text/plain; charset="us-ascii"
> 
> Recently I purchased a 1969 Monza convertible with a 110 pg.  Last night I 
> was out for a cruise when it quit running.  I was able to determine it wasn't 
> getting fuel.  I changed fuel filters and fuel pump but still it would not 
> run.  I knew it wasn't out of gas because I filled the tank just 25 miles 
> earlier.  These miles were around town miles.  After scratching my head for some 
> time I went and got some gas and filled the tank until it reached the filler 
> neck.  It then started and ran fine.  Before filling the tank I unhooked a gas 
> line from a carb, loosened the pump, and tried pumping it up by hand but no 
> luck.  Neither a new fuel pump from Clark's or a good used one made any 
> difference.  With the pickup located in the bottom of the tank I don't see how 
> adding a couple of gallons to the top of the tank would make any difference.  
> Does anybody out there have any ideas?  Is it possessed?
> 
> Ray Lough
> President Iowa Corvair Enthusiasts
> 1969 Monza vert
> 1968 Monza vert
> 1966 Stinger