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    #1

    Mk VIII Fan & Car Craft mag...

    I picked a fan out of a MkVIII a few weeks ago. It has a 3 wire cn, but the harness turns to 2 wire (?).
    I was wondering how to wire it up.
    What amp fuse, What amp relay, what temp sensor etc...<br><br>
    The Nov. ish of C.C. has an article about it, they use aftermarket harnesses for it.<br><br>
    http://www.hollisterroad.com/proddetail.asp?prod=MarkVIII

    I have a Moroso elec water pump/fan on one of my cars, a digital Temp gauge/controller runs it through a relay. It has worked well for many years. I don't want a bunch of gauges in the CV CS.<br><br>
    I wonder how you guys have wired them up?



    87 Ford LTD Crown Victoria Country Squire Station Wagon. 4.10's, Repacked Trac Loc, Boxed LCA's, Explorer Intake, 65mm T-body, 'Stang Cam, 'Stang Air tube, K&N, GT-40X Heads, 1" Spacer, 1 5/8 BBK's, 2.5" Pypes X-pipe w/high flow cats, Single Chamber Thunderbolts, B&M 'vertor, Po-lice Swaybars.

    91 Mercury Grand Marquis Colony Park Station Wagon. K-Code, 4.10's, Repacked Trac Loc, MK VII LSC Engine, 'Stang Upper Intake, Stang Air Tube, K&N, 65 mm T-Body, 'Stang Headers, 'Stang Cat Pipe,'Stang Torque Convertor, 2 Chamber Thunderbolts.
    Tags: None
    #2
    "Turns to 2 wire"? Figuring a wire is broken off inside the convulsive tubing.

    The '90s Ford fans appear to work like this: one ground, two hots. I used a spare battery to identify the terminals, concluding that the correct ground made the fan run in the right direction.

    Anyway, the smaller hot is for low speed, and for high speed you shut that off and energize the large hot. I have two relays running my Taurus fan, a 40A diode-protected as a SPST to switch it on and off and a 40/30A diode-protected as a SPDT to switch speeds (low to normally-closed, high to normally-open). Protection is a 40A fuse. I have a cheapie adjustable temp switch for on/off and currently have high speed wired to the A/C wiring. A better solution might be to use two temp switches, but I've also contemplated a simple logic circuit using either a transistor or a third relay that'd engage low for the temp switch OR the A/C, and high only when both the temp switch and A/C are on.

    Some guys spring for the nice DCC (?) variable-speed controllers and wire that to the high-speed side only.
    Last edited by 1987cp; 09-02-2011, 03:32 AM.
    2012 Mazda5 Touring | Finally working on the LTD again!

    Comment

      #3
      Originally posted by 1987cp View Post
      ...engage low for the temp switch OR the A/C, and high only when both the temp switch and A/C are on.
      or and.... Mr. Bool would be proud LOL.

      Thanks for the good info.



      87 Ford LTD Crown Victoria Country Squire Station Wagon. 4.10's, Repacked Trac Loc, Boxed LCA's, Explorer Intake, 65mm T-body, 'Stang Cam, 'Stang Air tube, K&N, GT-40X Heads, 1" Spacer, 1 5/8 BBK's, 2.5" Pypes X-pipe w/high flow cats, Single Chamber Thunderbolts, B&M 'vertor, Po-lice Swaybars.

      91 Mercury Grand Marquis Colony Park Station Wagon. K-Code, 4.10's, Repacked Trac Loc, MK VII LSC Engine, 'Stang Upper Intake, Stang Air Tube, K&N, 65 mm T-Body, 'Stang Headers, 'Stang Cat Pipe,'Stang Torque Convertor, 2 Chamber Thunderbolts.

      Comment

        #4
        Ah, as in Boolean variables ...

        Cool, looks like I remembered the name of the fancy controllers right: http://www.dccontrol.com/fancontrol.htm They have a two-speed controller, but I think it's the FK50 that I was told about. Supposedly the $150 gets you a much more reliable controller than the $100 models - and I see versions that control electric water pumps too.
        2012 Mazda5 Touring | Finally working on the LTD again!

        Comment

          #5
          Mark VIII fans are power whores. Don't be surprised if you start having issues with your electrical system with the Mark VIII fan.

          Comment

            #6
            Originally posted by 86VickyLX View Post
            Mark VIII fans are power whores. Don't be surprised if you start having issues with your electrical system with the MarkVIII fan.
            Installing big alt 1st...Congrats on the potm!



            87 Ford LTD Crown Victoria Country Squire Station Wagon. 4.10's, Repacked Trac Loc, Boxed LCA's, Explorer Intake, 65mm T-body, 'Stang Cam, 'Stang Air tube, K&N, GT-40X Heads, 1" Spacer, 1 5/8 BBK's, 2.5" Pypes X-pipe w/high flow cats, Single Chamber Thunderbolts, B&M 'vertor, Po-lice Swaybars.

            91 Mercury Grand Marquis Colony Park Station Wagon. K-Code, 4.10's, Repacked Trac Loc, MK VII LSC Engine, 'Stang Upper Intake, Stang Air Tube, K&N, 65 mm T-Body, 'Stang Headers, 'Stang Cat Pipe,'Stang Torque Convertor, 2 Chamber Thunderbolts.

            Comment

              #7
              how much of a power whore are those fans? got any numbers?

              Only two things are infinite, the universe and human stupidity, and I'm not sure about the former. -- Albert Einstein
              rides: 93 Crown Vic LX (The Red Velvet Cake), 2000 Crown Vic base model (Sandy), 2003 Expedition (the vacation beast)

              Originally posted by gadget73
              ... and it should all work like magic and unicorns and stuff.

              Originally posted by dmccaig
              Overhead, some poor bastards are flying in airplanes.

              Comment

                #8
                Originally posted by mitymerc View Post
                Installing big alt 1st...Congrats on the potm!
                It's still gonna act retarded even with the 3g. Trust me

                Comment

                  #9
                  Originally posted by 86VickyLX View Post
                  It's still gonna act retarded even with the 3g. Trust me
                  Hope to go to the j\y tomorrow.... Taurus? What engine\year? Thanks



                  87 Ford LTD Crown Victoria Country Squire Station Wagon. 4.10's, Repacked Trac Loc, Boxed LCA's, Explorer Intake, 65mm T-body, 'Stang Cam, 'Stang Air tube, K&N, GT-40X Heads, 1" Spacer, 1 5/8 BBK's, 2.5" Pypes X-pipe w/high flow cats, Single Chamber Thunderbolts, B&M 'vertor, Po-lice Swaybars.

                  91 Mercury Grand Marquis Colony Park Station Wagon. K-Code, 4.10's, Repacked Trac Loc, MK VII LSC Engine, 'Stang Upper Intake, Stang Air Tube, K&N, 65 mm T-Body, 'Stang Headers, 'Stang Cat Pipe,'Stang Torque Convertor, 2 Chamber Thunderbolts.

                  Comment

                    #10
                    Taurus is the large-case 130A 3G, right?
                    2012 Mazda5 Touring | Finally working on the LTD again!

                    Comment

                      #11
                      Originally posted by 1987cp View Post
                      Taurus is the large-case 130A 3G, right?
                      Don't know what year, 3.0 look for one w\3 wire plug.. replaces standard alt inbox panther. Do you know which fan I should look for?



                      87 Ford LTD Crown Victoria Country Squire Station Wagon. 4.10's, Repacked Trac Loc, Boxed LCA's, Explorer Intake, 65mm T-body, 'Stang Cam, 'Stang Air tube, K&N, GT-40X Heads, 1" Spacer, 1 5/8 BBK's, 2.5" Pypes X-pipe w/high flow cats, Single Chamber Thunderbolts, B&M 'vertor, Po-lice Swaybars.

                      91 Mercury Grand Marquis Colony Park Station Wagon. K-Code, 4.10's, Repacked Trac Loc, MK VII LSC Engine, 'Stang Upper Intake, Stang Air Tube, K&N, 65 mm T-Body, 'Stang Headers, 'Stang Cat Pipe,'Stang Torque Convertor, 2 Chamber Thunderbolts.

                      Comment

                        #12
                        Definitely don't get the fan from a 3.0L car, get one from a 3.8L car if picking from a Tortoise. I have a 3.0L fan, and it's really pretty small.
                        2012 Mazda5 Touring | Finally working on the LTD again!

                        Comment

                          #13
                          3.0 get one with two holes in the case on the raised ribs in the front. See pic.

                          That's the 130 amp 3g small case. That will work in place of the stock 2G alternator. If you have a 1G, you'll need one from a 3.8. Both will most likely need the bottom hole drilled out a little to allow the lower bolt to fit through.

                          Comment

                            #14
                            How do you tell 1g from 2g?

                            Or more to the point does my 85 351 have a 1g?

                            85 4 door 351 Civi Crown Victoria - Summer daily driver, sleeper in the making, and wildly inappropriate autocross machine
                            160KMs 600cfm holley, shorty headers, 2.5" catted exhaust, 255/295 tires, cop shocks, cop swaybars, underdrive pulley, 2.73L gears.
                            waiting for install: 3.27's, Poly bushings, boxed rear arms, 2500 stall converter, ported e7's, etc

                            06 Mazda 3 hatch 2.3L 5AT (winter beater that cost more than my summer car)

                            Comment

                              #15
                              Originally posted by johnunit View Post
                              How do you tell 1g from 2g?

                              Or more to the point does my 85 351 have a 1g?
                              Your 351 most likely has a 1G. The way to tell is whether or not the voltage regulator is on the back of the alt (2g) or mounted remotely (1G)

                              Comment

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