I did this a couple of years ago.  Pulled the tank after advice from
Wilford.  There are return lines which go bad, plastic pieces which break,
a crossover pipe, and various grommets.  Not wanting to do the job again, I
replaced everything.  You could see where the leak had been going for a
long time, beginning from a grommet on the top of the tank.  No more
problems after that, she was good as new.  I have the crossover pipe if you
want it.  It was still good.  There is a message in the archives with all
the part numbers.  Can't remember where the return line enters the tank,
but I don't think that is your problem.
hk

At 09:29 PM 3/13/01 -0500, jhlauterbach wrote:
>Has anyone had any experience with the fittings on top of the fuel tank
>leaking?  Where does the return line enter the tank?  I have chased down
>the gasoline smell to the front of the van.  Lines to vent tanks under
>front doors were replaced 2 years ago.  Gasoline smell appears to be
>coming in front air vents.
>
>John Lauterbach
>Macon, GA
>'84 DL

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