Date:         Tue, 22 Jan 2008 17:52:52 -0800
Reply-To:     Dave Brune <davebtranch@YAHOO.COM>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Dave Brune <davebtranch@YAHOO.COM>
Subject:      Re: LED to tell when fan is on.
In-Reply-To:  <755933.39679.qm@web45102.mail.sp1.yahoo.com>
Content-Type: text/plain; charset=iso-8859-1

Will p-mail pic's.
Jake, your e-mail gets bounced. try to p-mail for pic's.

Dave


<Sorry,
I meant to list the parts I used. Both units are made by Perma-Cool, the fan and adjustable control kit.  I always use (summitracing.com) as I sell them their plastics and prototype systems for their Trick Flow division. The Fan is part # PRM-19008 and was $95.95. The Fan control kit is part #  PRM-18905.  and was $51.95. Go to their web site they even have pics.

The modifications to the metal shroud were pretty simple. I wanted the fan as close to the radiator as possible. The shroud has a small tube that comes off that the original fan sits in the middle of. It ranges in length of about an inch at the bottom to a couple at the top. To keep the same angle of attack for the fan, and shorten the tube, I took 1" masking tape and went around the tube at the outer edges. I then took a cut off wheel and went around the inside of tape . You end up with a 1" thick round ring. Then I grounded and smoothed out the edges.
The fan has 4 mounting tabs that are thin metal with holes that can be bent to match the angle of the shroud. I just shimmed the fan blade away from the shroud far enough so the Blades and ring would not make contact. Then you just mark your holes and drill. I used 4 - 1/4-20 s.s.bolts with lock nuts to attach.
The fan control has only around 12" or so from probe to control box. I drilled a hole just to the left side, behind the glove box and ran the probe through the wall with rubber grommet and silicone sealant. I then hooked everything up and added a lighted toggle switch in the dash for the override. It is cool when you are running at highway speeds, the fan is free wheeling and the motor puts current back into the <system and will start illuminating the lighted switch.

Malcolm Stebbins <mwstebbins@yahoo.com> wrote: Yes.  Pictures and part numbers Please.  malcolm

----- Original Message ----

On Jan 22, 2008 5:10 PM, Dave Brune <davebtranch@yahoo.com> wrote:

> This was a post, I made back in march of last year.
> It was my upgrade for this fan situation.
>
>
> I would have to put myself in the aluminum camp. Last spring when I
> replaced my radiator in my 83 diesel, I went with the newer Alum.  It  seemed
> very strong, and looked just like the original at 30% the weight.   Aluminum
> has a much better heat transfer coefficient than any of the yellow  metals
> to.
> Anyways when I pulled the radiator, I took out the fan shroud to  clean,
> inspect, and repaint.  Looking at this fan I just though technology  has come
> along way with these electric fans since 83. So I started to do some
> research.
> I seems there were two fan types. The 83-85 all used the 2 speed fan.  The
> low speed ran about 200 watts or 16.6 amps. The high speed is around  300
> watts or 25 amps. The other fan went into any 86 and later with A/C,  this
> was a switched 3 speed that draws 450 watts or 37 AMPS!
> After researching the new fans. I decided on a 12" Diameter, 10 blade
> pancake style that pulls 1650 Cfm and draws only 7.5 Amps or around  90
> watts.  Then I cut off the 3 supports that held the old fan on  leaving and
> perfect mounting area.  After a little trimming and 4 -1/4" S.S.  bolts my
> fan was mounted.  This fan tucks perfectly under the shroud tunnel.
> The next step was controlling the fan. I went with a adjustable fan
> control kit. This uses a sending unit that is a radiator probe, that  just
> gets pushed into the fins in the middle and around 4" down.  This has  a
> control box that I mounted inside behind the glove box for easy  access.  The
> control knob adjusts to turn the fan on any where between (170 - 210  F)
>  This way you can change settings from summer and winter. The control  unit
> also comes with and override switch. I always use these so if you are
> pulling a big hill you can flick on the fan and get ahead of the  curve.
> The other advantages are that is much more quiet,  weighs less, pulls  more
> air, as the blades span the whole shroud opening. Plus it uses about  30% of
> juice than a stock fan!  Pretty COOL!
> I can take pic of fan installed if anyone wants.
>
> Dave
>
> BTW
> I still have part #s and pic's.
>
> Dave





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