The RPM's do come up to speed a little bit faster but I need to run it for
several tank-fulls before saying anything else. (I haven't really noticed
any performance improvements with the exception of the rpm's.)
> -----Original Message-----
> From: owner-dakota-truck@buffnet4.buffnet.net
> [mailto:owner-dakota-truck@buffnet4.buffnet.net]On Behalf Of
> bnich@bellatlantic.net
> Sent: Thursday, February 25, 1999 6:29 PM
> To: dakota-truck@buffnet.net
> Subject: Re: DML: Electric Fan Installation (And Part#'s)
>
>
> Bernd D. Ratsch wrote:
> >
> > Alright...I broke down again and decided to convert my '97 Dak
> from Viscous
> > to Electric Cooling.
> >
> > I've already tried it (severely) in rush hour traffic (Austin
> people should
> > know about Mopac direction Round Rock) and it didn't even come
> close to the
> > 210 mark on the temp gauge. Here's the setup and installation notes:
> >
> > Hayden 16" Electric Fan ("Pusher"): Part# 3710
> > Hayden Adjustable Fan Control (160-210): Part# 3647
> > About 24 inches of 14ga. RED wire (For ACC line into cab)
> > Small Saw, Shears, Makita, whatever...something to cut the
> Plastic on the
> > Fan Shroud
> >
> > The removal of the fan clutch was a @#$@! considering I didn't
> have a 34mm
> > wrench...had to use a screw driver and a very BIG crescent
> wrench. (Worked
> > fine though...) Since the fan is a "Push" style and not a "Pull", I
> > contacted Hayden and found out that you can reverse the
> polarity without any
> > problems (also made sure it doesn't affect the Fan Control Relay).
> >
> > (1) Back off two screws on the Water Pump Pulley (just about
> 1/2 inch) for a
> > pry bar to hold it while you undo the Fan Clutch Nut. (Turn Counter
> > Clockwise)
> > (2) Unscrew all four bolts holding the Fan Shroud (10mm)
> > (3) Move the Fan Shroud forward enough to allow you to finish
> unscrewing the
> > Fan/Clutch assembly and pull it out of the truck.
> > (4) Remove the Fan Shroud from the Truck
> > (5) Draw an imaginary line from the center of the waterpump to
> the radiator
> > (This is where the center of the fan motor should sit)
> > (6) Remove the top radiator mounting screws and move the
> radiator forward
> > enough to get your hands/arm down into the area.
> > (6) Attach the Hayden Fan onto the radiator with the supplied straps (I
> > modified mine to attach the fan with 6 straps...not the supplied 4)
> > (7) Put the radiator back into place and replace/tighten the screws back
> > down
> > (8) There is a great ground location next to the radiator
> (looking down from
> > the top, it's on the right hand side) where you can attach the
> Ground Wire
> > from the Fan. (Normally it's Black but since I reversed the
> polarity, I used
> > the Blue.) - It requires a 13mm socket to get to it.
> > (9) Remove the battery and bolt the Fan Control Relay to the small plate
> > next to (and underneath) the Upper Radiator Hose. (I removed
> the battery
> > since the Makita wouldn't fit in the 3" space) Use Self-Drilling Sheet
> > Metal Screws.
> > (10) Connect the Orange and Blue wires from the Relay to the
> Positive lead
> > from the Fan and run the wire(s) underneath the shroud mounting plate.
> > (11) Connect the Green wire from the Relay to the Blue/Yellow
> Stripe wire on
> > the A/C Clutch Switch (It's right behind the connector laying on the
> > Driver-Side of the engine right in the middle of the engine...strip away
> > about 1/2" of the factory tape to get enough wire for the wire clamp.)
> > (12) Run the yellow wire along the inside of the Driver-Side
> Fender all the
> > way into the cab (There's a rubber grommet where you can punch
> a small hole
> > and run the wire into the Cab) and put a spade connector on the end.
> > (13) Open your Fuse Panel and find the Accessory plug (or any
> open connector
> > that ONLY powers up when the engine is ON). Put the yellow
> wire into that
> > plug. (I had to use some extra wire since the initial length
> wasn't long
> > enough. This is where the RED wire is used)
> > (14) Connect the Red wire from the Relay to the Left Terminal
> underneath the
> > outside Relay Box (Next to the battery)
> > (15) Connect the Black Wire from the Relay to the Neg. Battery Post.
> > (16) Insert the Temp Sensor from the Relay into the radiator,
> right next to
> > the Upper Radiator Hose. (This give the best reading) You can use the
> > supplied foam pads but I used just a small dab of Clear Silicon on both
> > sides to keep it from falling out.
> > (17) Don't forget to tighten the Water Pump bolts before going
> any farther.
> > (I did this late last night and forgot...I purchased a new belt this
> > morning...OOPS!)
> >
> > Here's where I cut the bottom of the Fan Shroud to allow me to
> easily slip
> > it back into place. Cut a 3"x8" "Cutout" on the bottom
> "Radiator Side" of
> > the fan shroud (Center it and the 9" is lengthwise). Cut a
> 2"x5" "Cutout"
> > on the bottom of the Fan Shroud on the opposite side where the
> Water Pump
> > pulley will touch on installation. You don't have to do this
> but it made it
> > much easier to reinstall the shroud.
> >
> > (18) Reinstall the Fan Shroud (and if you did it right, the Electric Fan
> > will be perfectly centered in the opening).
> > (19) Now this depends on the Thermostat that you have installed in your
> > truck. (I have a 180 so I set the Relay to turn the fan on at about
> > 190-195) Turn the little screw on the relay (with the screw on
> the right
> > side) Counter Clockwise until it stops. Then, back it off about
> 3 notches
> > (they're on the outer rim).
> > (20) Reinstall the battery and your all set.
> >
> > Please keep in mind that my Dak has a "mildly modified"
> V6...not a V8 and
> > this fan may not be enough for the "Big Boys"...(You're welcome
> R/T owners)
> > :) I haven't tested it with towing since I don't have anything
> really big to
> > tow...at this time.
> >
> > I'll have some pictures up later on next week on my site for
> you to see the
> > finish installation.
> >
> > Bernd D. Ratsch
> > Pflugerville, TX
> > bernd@texas.net
> > http://lonestar.texas.net/~bernd
> > 1997 Dakota SLT-CC (3.9L)
> > License Plate Frame: "Don't Follow Me...I'm Trolling for Toyota's"
> > Song for the Day: "Gonna buy me a Dodge Truck and blow those
> Fords off the
> > road....."
>
> Bernd, Nice directions, So does it run any better? Bob
>
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