Geza Polony wrote:
  > The wrinkle: I pulled the thermostat a month ago and tested it in
boiling
> water. It was fully closed when I pulled it, and didn't START to open until
> 200*, almost boiling. It closed normally when I put it in the freezer, and
> opened again just fine.

Boy, does this sound familiar?

When I bought my '85 Westy it had all the symptoms of a thermostat that
stayed open.  It ran too cool, took forever to warm up, and had
driveability problems in cold weather.

I bought a new standard thermostat and replaced it over 4 years ago with
no problems since.  Oh, BTW, when I took the old one out it was closed
... and opened in almost boiling water.  Go figure.

Mike