The clutch fan operates based on a thermostatic bimetallic spring coil
that's located on the front face of the fan drive. If the radiator
discharge air temperature rises above a certain point the fan will engage.
This will continue until that coil senses that the temperature has dropped
below that point. What happens to you in the mornings is due to your engine
being at operating temperatures the night before when you shut it off.
There was no more cooling so the air temperatures went up under the hood.
That set the switch to engage the fan. When you start your truck in the
morning and that spring coil has had enough time to react to the air
temperature around it the fan should disengage. It shouldn't take but a
couple seconds.
Ron
00 PB SLT QC 4X2 5.9 46RE 3.92 LSD
For modifications see my DML Profile (URL follows)
http://www.twistedbits.net/WWWProfile/dakota/Kw9pV1EkFeOYY
-----Original Message-----
From: owner-dakota-truck@buffnet.net
[mailto:owner-dakota-truck@buffnet.net]On Behalf Of Arnoldo Silva
Sent: Saturday, March 24, 2001 8:02 AM
To: dakota-truck@buffnet.net
Subject: Re: DML: Black Magic fan in 97+ Dak
why is it that the fan roars in the morning or when truck has been siting a
while i cant understand this none of my other vehicles do this.
arnold
----- Original Message -----
From: "Andy Levy" <andylevy@bigfoot.com>
To: <dakota-truck-moderator@bent.twistedbits.net>
Sent: Saturday, March 24, 2001 9:32 AM
Subject: Re: DML: Black Magic fan in 97+ Dak
> The engine definitely winds up faster without all that extra drag on it,
> and on cold mornings I actually have power, instead of the fan roar.
>
> Anytime the a/c compressor is running, the fan runs. Which is a little
> odd when I have the defroster on early in the morning, as it'll kick on
> and off every few seconds.
>
> TJ Goettner wrote:
> >
> > Did you happen to notice any power increases?? Doesnt that one come on
> > constant also when you have the AC on? Not that it matters, I never use
my
> > AC... even though Im in south GA.
> >
> > TJ
> > 1992 Dodge Dakota 4X4
> > Long Bed, 318, Auto Trans
> > DT Headers, Functional RamAir Hood
> > K&N FIPK, Flowmaster Muffler
> > Custom Throttle Body
> > ----- Original Message -----
> > From: "Andy Levy" <andylevy@bigfoot.com>
> > To: <dakota-truck-moderator@bent.twistedbits.net>
> > Sent: Friday, March 23, 2001 5:37 PM
> > Subject: Re: DML: Black Magic fan in 97+ Dak
> >
> > > Mine's mounted vertically, the clamps on the top and bottom of the
> > > radiator. I don't think the brackets were modified, but I got mine
> > > secondhand. I'll try to check tomorrow which wire it is, and whether
> > > the brakcet was modified or not.
> > >
> > > -andy
> > >
> > > John_Neff@Dell.com wrote:
> > > >
> > > > Does anyone have any hints on installing a Black Magic fan in a 97+
Dak?
> > I
> > > > just received mine yesterday and it looks pretty straight forward.
But,
> > I do
> > > > have a couple of quick questions. How did you mount the fan? Did you
do
> > so
> > > > vertically, or horizontally? Did you need to modify the included
> > brackets
> > > > any? Which wire on the A/C compressor is +?
> > > >
> > > > Thanks in advance,
> > > > John
> > > > 98 Dak 4X4 CC Sport, 5.2L, Auto, Mopar headers and computer, F&B TB,
> > Gibson
> > > > cat back, MSD 6A and Blaster SS coil, Superior Transmissions shift
kit,
> > soon
> > > > to be installed Black Magic fan.
>
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