If we're "talkin" about the same parts, the hinged flaps allow forced
air (when van is moving) to come in via the fresh air ram up front.

These flaps have a thin layer of foam on them

The heat exchange/fresh air box has to come out for the rebuild. (new
foam) This requires removing the dash.

Btw, I had read of one guy using felt instead of foam. Not sure if
this is longer lasting, (it may well be) but just tossing that idea in
for consideration.

My "knowledge" based upon the '81 heat/fresh air box design.

Batteries not included.

But DO collect $200 after passing "go".

;^)

Neil.

On Wed, Mar 5, 2008 at 7:31 PM, Jim Felder <jim.felder@gmail.com> wrote:
> All of the heater plenum rebuild information I've run across talks about the
>  bottom flaps that run heat out into the cabin when the AC is on.
>  Then there's a hinged pair that obviously close on some kind backflow.
>
>  Above that is another shaft with another set of flaps.
>
>  These look harder to get to. Do they need refurb, and, if so, how do you do
>  it?
>
>  Jim
>

--
Neil Nicholson. 1981 Air Cooled Westfalia - "Jaco"

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