Have you thought about getting a snorkel and sand trap out of a donor
Syncro? Comparing the Syncro intake and my 84 Westy intake, there is
much less dust with the Syncro snorkel. Maybe one of those K&N
washable filters that are coated with oil. I have no experience with
these permanent filters, but it's worth checking out. Perhaps there
are a few list members who offer their feedback on the K&N.

Keith O

On Tue, May 20, 2008 at 6:32 PM, Dave Yates <transparu@gmail.com> wrote:
> I've a Subi engine in my Vanagon and on recent trips in VERY dusty
> conditions found the air filter collected too much dust.  At present it is a
> cone type with a cleanable paper filter.
>
> Has anyone put their filter up through the panelwork that runs up the corner
> of the van to the air vent?  I can envisage some sort of a flexible hose,
> but I have trouble knowing what sort of filter to put up there, inside the
> vent, so that it doesn't change the appearance of the van.
>
> An alternative might be to shroud the existing filter somehow so that all
> its air comes from up in that cavity, but the last thing I want to do is
> reduce the air flow into the intake.
>
> Any comments anyone?
>
> Dave
> downunder
>