<VV> Fuel return line on a 140

[steven at sashimi.org]

Thanks Frank,

Parts just ordered and should arrive for a weekend repair.   

Incidentally, last night (with a tubing cutter) I cut off the distal 3" of
the return line which was crimped and mangled, and put on a tight cap. 
During this operation the fuel kept dripping from the line and there were
air bubbles indicating to me that there was some pressure in the line. 
Sure enough, I opened the gas cap and air rushed out (and dripping
stopped).  I thought that the system was supposed to vent through the cap.
It seems to me that pressure in the tank would defeat the purpose of the
return line, depending on the relative pressures (tank versus pump-to-carb
lines).  The cap looked almost new but I ordered a new one anyway, just in
case it wasn't the correct cap.    

- Steve Brown


Original Message:
-----------------
From: Frank DuVal corvairduval at cox.net
Date: Wed, 09 Jan 2008 08:04:07 -0500
To: virtualvairs at corvair.org
Subject: Re: <VV> Fuel return line on a 140


I agree with Matt, take the plug out and reconnect the return line. It 
can really help deter vapor lock.

And the answer you really want: There are no downsides to using a return 
line.

Frank DuVal

steven at sashimi.org wrote:

>Original Message:
>-----------------
>From:  PatioMatt at aol.com
>Date: Tue, 8 Jan 2008 15:52:12 EST
>To: virtualvairs at corvair.org
>Subject: Re: <VV> Fuel return line on a 140
>
>Matt wrote: 
>"Why not re connect it?  it's just a special "T"  off the fuel  pump....
>will 
>prevent that Vaporlock if it does get real hot...and gets shut  down for a 
>short while.."
> 
>Steve writes:
>
>Yup, the special "T" is there.  If there's no reason not to, I figured on
>replacing the missing line. (hence my question which you have just
>answered, thanks :)   
>
>- Steve  
>
>
>  
>
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