'larger hose' ...?
I just had an 84 tank in and out ..
and have done many 2WD vanagon fuel tanks.

normally I don't think there any 'large hoses.'
What is stock is a plastic line across the top, joining the plastic
gizmo's that plug into the grommets in top of the tank. That cross-over
vent/ evap line is about 5/8ths inch in diameter.

the plastic plug-in pieces often break.
there is also the largish plastic line coming down from the top of the
filler neck .

other than that there are 4 small hoses ..two per side, on top.
and the hoses on the bottom of course ..the two at the aft edges.

also ..curious about this later style filler with a ball something in it
( which I take to be for keeping fuel in the tank if the van flips ) ...
I have never had any problem getting fuel into the tank at the filler
neck, but get the impression that maybe you have, based on a post of yours .
???
thanx,
Scott

On 5/23/2012 5:09 PM, Bryan Feddish wrote:
> So I took the tank out again and replaced the grommets and gas lines.  I found a bad leak in one of the larger hoses http://www.feddishbasses.com/fillertube.html which was probably causing the really bad gas smell from the last 2 or so weeks.   The problem is I still smell gas.  I DID fill the tank until it was completely full so I am really hoping that by burning off a gallon or two will cure that.  If not I’m really close to repairing the gas leak with a match......*
>
> grrrrr
>
> Bryan
>
> * disclaimer, I’ve been breathing gas fumes in 88 degree heat for 6 hours...
>