Interesting.   My 85 2wd westy also cuts out when it gets too hot, but
"too hot" seems to be about 85 to 95 degrees ambient.  It has cut out
when the radiator fan is not on the turbo high speed.  I think my
coolant is bled & topped off, and I have a newish radiator.   It is a
R134 conversion, so I was suspecting pressure issues, but it sounds
like there is no pressure cutout.

Any ideas then as to why my AC cuts out in moderate but not extreme
heat?   Where is the temp. sensor located?  I'm wondering if my system
were not 100% bled and there was an inch or two of vapor at the top of
the radiator, would that trigger a false "over temp" signal?

On May 5, 2008, at 12:25 PM, Mike Miller wrote:
> Hmm. My '85 2 wheel drive Westy had that switch or at least a switch
> that
> cut out the AC when things got too hot.
>
> Found out in Phoenix, in June, at 114 degrees.
>
> Mike
>
>
> On 5/5/08 10:54 AM, "Bill Collins" <wb6otg@INTREX.NET> wrote:
>
>>> I have a vague memory of someone saying there was an over-
>>> pressure cutout on the AC system...?
>>
>> Possibly on '86 and newer, but not on the older ones.
>>
>> Bill