Date:         Fri, 28 Jun 2013 20:54:18 -0700
Reply-To:     mark drillock <mdrillock@COX.NET>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         mark drillock <mdrillock@COX.NET>
Subject:      Re: Radiator Fan
Comments: To: Karl Wolz <wolzphoto@Q.COM>
In-Reply-To:  <u0m11l00r08X5Fr010m3tB>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed

The physical wiring is different in that it needs to carry more current.
The basic wiring diagram for the new setup would be like what is shown
on Bentley 97.200 of the later Bentley. One could build that wiring
easily enough. The big fan motor needs a dedicated battery power feed
wire, to feed the 50 amp fuse.

The best thing would probably be to get the complete 450watt fan harness
from an 86+ with A/C. Then you would need to run a new power feed wire
from the battery to the dash area to power the new harness. There will
be a few connections to figure out, a couple wires not needed and some
mods to the new harness. The hew harness would not need to connect to
the existing dash wiring at all. You won't need to remove or modify your
original fan wiring, just leave it aside.

Mark


Karl Wolz wrote:
> I've considered going to the larger motor ('85).  How big a job is it to change the wiring?
>
> Karl Wolz
> Sent from my electronic umbilicus
>
> On Jun 28, 2013, at 4:55 PM, mark drillock <mdrillock@COX.NET> wrote:
>
>> For replacement purposes there are only 2 rad fan assemblies.
>> A small motor 200/300 watt and a large motor 450 watt. You need to use
>> the right version for your wiring. The fan shroud is also different to
>> match the motor size. The fan blades are the same diameter, the motor is
>> different and the wiring is very different.
>>
>> 82-85 200/300 watt small motor.
>> 86-91 2wd not with factory A/C 200/300 watt small motor.
>>
>> 86-91 with factory A/C 450 watt large motor.
>> All Syncros use 450 watt large motor.
>>
>> Mark
>>
>> Jim Ogul wrote:
>>> Anyone ever replaced their's on an 85 Westy with automatic.  I look at the
>>> various sellers and they list one for 86-91 but not for an 85.
>>>
>>> Jim
>>> 85 Westy
>>>
>