At 12:44 AM 7/29/2002, John Clavin wrote:
>The auxilliary air regulator on my 1985 Vanagon GL appears to have bit the
>dust. I cannot detect any idle speed changes when squeezing the hoses per
>Bentley test. This is the old style regulator that mounts on top of the
>engine beneath the air cleaner.
>
>I took the unit off and when "cold" it passes air easily. However, when I
>connect it to 12 volts and let it heat up it never completely closes. At
>best, I would estimate the flow is never less than one half the "cold"
>state flow. Is this normal? Anybody have any experience with this unit? I
>couldn't find much in the archives except about the newer style cylidical
>unit that buzzes.

These statements are inconsistent -- if it stays open you should get a
difference any time you pinch the hose.

Device may not close completely electrically (also, it will be expecting
around 13.5 volts) -- it depends partially on head from the head to close
it.  Also make sure airflow is in correct direction, it only seals one way.

Note -- photos in Bosch FI book show one straight from the freezer, covered
in frost, with disk about half-plus open.  Then they show one "warm" with
it almost closed.

david

--
David Beierl - Providence, RI
  http://pws.prserv.net/synergy/Vanagon/
'84 Westy "Dutiful Passage"
'85 GL "Poor Relation"