I spoke too fast here.  The normal condition at high temps would be for
both sections of the thermo-switch to be closed; hence you need to jumper
all three pins together to duplicate that.  I don't know for sure whether
it makes a practical difference.  Fan wiring (and the fan itself) varies
between years and depending on the presence of A/C.  Some arrangements use
two windings on the motor, some apparently do not.  All arrangements except
non-AC 1.9l appear to use a relay to control the high speed, so you won't
be jumpering 50 amps at the thermo-switch.

david

At 12:34 PM 5/10/2001, David Beierl wrote:
>At 12:17 PM 5/10/2001, Steven Johnson wrote:
>>my '91 Westy.  I haven't heard the higher fan speed
>>come on yet and I think that's because it probably
>>needs a new resistor....
>
>More likely that it's never needed to...but you can test it by jumpering
>the thermo-switch on the radiator.  Bridge between any two pins -- you
>can't hurt it.  Use a hefty wire though, a paperclip will probably burn you
>on the high speed.
>
>david
>
>
>David Beierl - Providence, RI
>  http://pws.prserv.net/synergy/Vanagon/
>'84 Westy "Dutiful Passage"
>'85 GL "Poor Relation"

David Beierl - Providence, RI
  http://pws.prserv.net/synergy/Vanagon/
'84 Westy "Dutiful Passage"
'85 GL "Poor Relation"