David,
   Isn't the rear blower motor the same size as the front one?

Larry A.

On Thu, Oct 21, 2010 at 3:23 PM, David Beierl <dbeierl@attglobal.net> wrote:
> At 11:36 AM 10/21/2010 �-0400, Jonathan Berg wrote:
>>
>> My first Westy (an 89) melted the switch on the #3 setting.
>
> I've said it before and no doubt I'll say it again: that switch is
> overloaded at the full-speed position. �I recommend using that
> position to control a relay that does the actual switching. �Saves
> having the body melt and the contact sink down so you can't switch
> the blower off.
>
> On the 1.9l the circuit is also overloaded, which is why the fuse
> cover is melted over that position. � For these vans I also recommend
> adding a separate fused circuit to actually power the high speed,
> which draws about twelve amps.
>
> To add a relay, use a standard 4-terminal automotive relay. �Hook the
> 30 (B+) terminal into the wire feeding the switch (or on a 1.9l add a
> fused circuit for the 30 terminal). �Ground the 85* terminal. �Cut
> the high-speed wire from switch to fan; hook the wire from the switch
> to the 86* terminal and the wire going to the fan to the 87 (load) terminal.
>
> * The 85 and 86 terminals are the control terminals. �It doesn't
> really matter which one you ground.
>
> And if you get a switch from a junkyard, make sure it's from the rear
> blower and not the front. �The rear blower doesn't overstress the switch.
>
> Yours,
> David
>