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

[Andrew Sego]

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