On 05/05/2012 07:36 PM, David Beierl wrote:

"[...] I just don't think those particular flaps need to have any [foam]
at all, [...]"

Perhaps a minority opinion, but one that makes sense to me.

--
Jack "Rocket j Squirrel" Elliott
Bend, Ore.
1984 Westfalia. A poor but proud people.
1971 "Ladybug"-brand utility trailer ca. 1972 from a defunct company in
San Clemente, Calif., now repurposed as The Westrailia.

On 05/05/2012 07:36 PM, David Beierl wrote:
> At 10:29 PM 5/5/2012, Alistair Bell wrote:
>> yeah, I agree. But... sometimes you find all the foam has degraded
>> almost completely. Just like some loud speaker foam
>
> Right. I just don't think those particular flaps need to have any at
> all, that its major function is to make them quieter when they slam
> shut. Anyway, I didn't notice any loss of flow or any whistling
> noises after firmly rubbing all the loose residue off at least two
> sets of them. But the slapping noise when you suddenly turned the
> fan to max might have been a bit more pronounced. Which was fine
> with me, I like being able to hear them when I want to.
>
> :)
> d