[FC] Replacing fuel tank 5/16" rubber line....and fuel gauge

[Ken Hand]

 When I first got my Van I also had a problem with vapor lock. I did everything I could think of using all the little tricks to cure it. I finally ended up putting an electric fuel pump up front and removing the mechanical pump.

Some of the things I tried was new rubber, repositioning the metal line in the engine compartment, insulating the same line, and replacing the fuel pump several times with new. 

The absolute cure for me was the electric pump. The FC lends it's self to the in-tank pump very well with the long pick-up tube but most opt for the external as it is easier to do. If anyone opts for the external, do not mount it to the body as the floor becomes a very large speaker and you will hear every click of the pump all the time. Just position the pump so it will hang on the rubber lines protected behind the bulkhead that is just behind the tank, then run a ground wire. You have an instant sound insulator.

 

Ken Hand
248-613-8586
www.corvairmechanic.com

http://s186.photobucket.com/albums/x118/vairmech/Viet%20Nam%20Pictures%201971/


 

 

-----Original Message-----
From: Andrew Sego <andrew_sego at yahoo.com>
To: corvanatics at corvair.org
Sent: Mon, Jul 25, 2011 10:30 am
Subject: [FC] Replacing fuel tank 5/16" rubber line....and fuel gauge


I'm been fighting vaporlock on my van recently.  Thinking that it may be sucking 

air I replaced the rubber line at the back and added a fuel filter.  Going to 
the front I can see that the line is somewhat swollen.  Also I can see that 
someone has either smeared grease on the floor above the gas tank, or fuel 
vapors are leaking up there and softening tar based undercoating.  It looks 
rather tight up in there.  Is it possible to replace that line without R&Ring 
the tank?

I have a spare front suspension and steering linkage that I tore down last week 
and is being dropped off at the blaster today.  If I need to drop the tank to 
replace the line, I'd like to wait a couple of weeks until the "new" suspension 
is ready to go back in.  This will allow me better access to clean the underside 

of the front floor and coat it for longevity.

Also my fuel gauge isn't working...always reads full I disconnected the ground 
wire and the gauge went full.  I cleaned up the connection and reattached.  Now 
it's empty again.  What next? Should I be looking at the gauge or the sender?  
BTW the gauge worked a few years ago when the van was new to me.  Hasn't been 
driven much since then until recently.

Thanks
Andrew
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