Hi Patrick,

You're dealing with two different animals here.

The gauge sending unit screws into the low pressure outlet (.3bar).  The
1.8/.9 bar switch screws into the high pressure outlet, which is located to
the left of the main pulley and under the water pump.  Installing the gauge
unit will not make your buzzer stop.  You need to pick up a .9bar sender and
replace the 1.8 bar with it.

Karl Wolz

----- Original Message -----
From: "clerkin" <clerkin@STUDENTS.UIUC.EDU>
To: <vanagon@GERRY.VANAGON.COM>
Sent: Monday, July 09, 2001 4:34 PM
Subject: 86 vanagon Oil Pressure Switch

> I have a 1986 vanagon with an oil pressure light and buzzer which comes on
> when the vehicle is warmed up and is above 2000 rpm.  It will also go out
> around 3500 rpm.  The engine was rebuilt about 30k ago and the light came
on
> immediately.  When the mechanic was called about the problem, he said that
he
> must have put the wrong oil pressure switch in.  It has been run like this
for
> 30k without any problems, but I want to fix the problem (better late than
> never.)  I decided to upgrade to a VDO guage and sender from the Bus
Depot,
> but the guy I talked to on the phone didn't seem like he had any idea what
was
> going on.  He told me that they did not sell the stock switch, and that
the
> only thing they had was the VDO switch and guage.  He also told me that
their
> VDO guage is not the dual guage (allowing both the idiot light and guage
to
> operate) which is in contradiction to their website.  In checking their
> website I have found both of these statements to be false, but in their
> defense, the man said Ron was gone and would return in a few days.  He
said I
> should call him about any specific questions.  Since I am still unable to
get
> any answers at the Bus Depot I thought I would try the list.
>
> 1.  Is the dual VDO guage set at .9 or 1.8 bar?
> 2.  Is it normal for an engine with the improper switch to flash it's
idiot
>    light?
>
>
> Thanks,
> Patrick
>