I am not aware of any change in fuel tanks over the generations of 2wds
other than filler holes.
I am aware that there were many coolant pipes, but almost any of them can be
made to fit. Heck, I'm running 3 of 4 sections of pipe (all my pipes are cut
in half) which are "left" pipes. And, they're from different years/models.
(one piece is from a diesel).
You can make anything work, and i'm unaware of any interference with the
tank. I would assume your tank to be bent (or your frame rails?).
Time for a hammer.

-Craig

On Mon, Jan 3, 2011 at 9:57 PM, mark drillock <mdrillock@cox.net> wrote:

> I learned it from personal experience with all those variations.
>
> There are only 2 outer diameters of pipe.
> All the metal are the same, ~ 1 1/4"
> All the plastic are the same, ~ 1 1/2"
>
> The 82 metal pipes are different at the engine end only, afaik.
>
> I don't know much about the early aircooled Vanagons. Since VW designed
> the Vanagon for watercooled engines from the start I assume the tanks
> are the same shape. Since diesels came out mid year in the 81 model
> production surely they planned for it beforehand with things like the
> fuel tank.
>
> Mark
>
>
>
> neil n wrote:
>
>> My goodness. Where do you find this info?   ;)
>>
>> Ok. So maybe the 70mm fill hole opening tank was designed to work with
>> the '82 diesel pipes and maybe they were a smaller OD.
>>
>> Neil.
>>
>>
>>