I've tried mine on my 1.9. I can't move it by myself, I think I would need a
vacuum pump along with my vacuum gauge.
Then again I could not draw air freely through the hose, so my diaphram is
still intact I would think.
The advance works when I use my light, I haven't checked it too thourghly
yet though (i.e. mark pulley in degrees to see total advance).

Mark Ingalls

>From: Bradley Flubacher <flubach@HOME.COM>
>Reply-To: Bradley Flubacher <flubach@HOME.COM>
>To: vanagon@GERRY.VANAGON.COM
>Subject: vacuum advance/retard control unit
>Date: Mon, 2 Oct 2000 22:14:28 -0400
>
>Hi,  I just got off the phone with a fellow enthusiast.  He said that if I
>disconnect the vacuum hose from the throttle valve that runs to the vacuum
>unit on the distributor, and suck on it, I should be able to see the rotor
>retard... or at least move.
>
>I did this, and I couldn't notice any movement in the rotor.  Might my
>vacuum advance/retard unit be defective?
>
>'84 1.9L
>
>Bradley Flubacher
>State College, PA

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