Hi -

The throttle valve switch has failed on my 85 Westy.  This switch is located
under the throttle rather than above the throttle body as shown in the
Bentley Manual.  There are no switches on top of my throttle.  The part
number is 025 906 017.  This number is on the plastic plate that holds the
actual switch.  The actual switch has the following: Hartmann Serie 506 4A
250V~.  The switch is open all the time, so I am unable to know whether it
should be NO or NC.  There is a little cam on the throttle shaft with two
bumps, one that is supposed to actuate the switch at idle and another that
actuates the switch at full throttle.

If anyone knows where I can get a good replacement switch I would be glad.

Alternatively, I can get a new microswitch and adapt it to the existing
holder.  If anyone would care to give me an opinion as to whether it is a NO
or NC switch I would like to hear from you.  I know the 84 switches on top
are NO.

Coming out of closet, I am an Engineer engaged in small company startup.
Currently living in East Tennessee near the Great Smokey Mountain National Park.

  http://www.phenotypescreening.com/

I have owned several 356A Porsches, bugs, a Karmann Ghia, Alfa Romero, a
Brazilian Bus, a South African bug, a 78 Van and now two Westies, 84 and 85.
 Also motorcycles, a Renault 6 and a Peugeot 504.  While I never owned a
Land Rover, I have driven them extensively.  My daily driver is a 94 Buick.
 Coming back from Chattanooga on the afternoon of Christmas Eve, I noticed
that while I was just keeping up with traffic on I-75N the 85 MPH
speedometer on the Buick was pegged.  I can't do that in a Vanagon – yet.
My 84 is a prime candidate for a Subaru engine transplant.

Ron