I also have an '86 2wd Westi with air conditioning and it did not come
equipped with any pressure cutout switches in the refrigerant lines.  I
know this because I pulled out all the refrigerant hoses last summer and
replaced them with barrier type hoses while I was adding an in-the-dash
second AC evaporator unit and changing to R-134a.  There were no
switches.  This is contrary to what is described in Bentley but this is
what I found.

Ed McLean
'86 Westi w/dual AC
North Carolina

Darrell Boehler wrote:
Have an  86 2wd westy....Does this unit have a high side cutout
switch???   If so where should it be located???  My unit has none.  The
bentley book shows a pipe with a high pressure and a low pressure cutout
switches.