Horton Fan

[PCrable]

Dave,

I think I had one of the very early Horton's designed for the 24 valve engine. They did have a metal bracket that was used to hold the wiring harness as it went through the fan shroud and held the wires as they attached to the fan. I think since then that the metal bracket is no longer used. If so, it's a good thing since my fan managed to hit that metal bracket and drive it into the radiator. Luckily, a local dealer replaced the radiator and Horton fan since it was a Dodge part at that time.



I think they've re-designed that part now. If not, be very careful how much clearance you have between the fan blades and the bracket.



Also, the wiring to the fan makes it a little harder to put on a new fan belt... you'll have to unplug the fan to get a new belt past the wiring.



Lessons from the school of hard knocks...



--Phil

 

[Dave MacArthur]

OK next question. Where can I get the two wrenches needed to take the old fan off and install the new one? I need a 1-7/8" and 1-7/16" open end wrench. Also, someone mentioned a slotted socket used to install the thermoswitch. Who sells one? I guess I could get away with a wrench for the termoswitch but I would rather torque it.



Phil,

They still use the metal bracket for the wiring. I'll be sure to check the clearance carefully. By the way, it still comes as a Mopar part, with the Mopar manual and all.

 

[Old Man]

Keep us informed

Dave, keep us informed with the install. I going to go with the Horton fan myself. Thanks. O. M.

 

[Brandon]

if you would please post the part number for us it would help, and whether its 12 or 24



thank, B

 

[Dave MacArthur]

OK here are the part numbers and update.



Horton part number 996120 (Parts Kit). This is the wiring harness, switches, sensors etc.



Horton part number 996018 (EC450 clutch).



Horton part number 994168 (Fan).



This is for the 24V.



All I've done so far is install the wiring harness and cut a hole in my knee panel for the manual on/off switch. I used a dremel with a cutting bit to cut the hole in the knee panel. I've been very busy lately but the other reason is I still don't have the two wrenches needed for the fan clutches. Anyone have any advice on where to get them or if they are needed? I'm wondering if I can just use a large adjustable wrench to snug up the Horton clutch or if I really need the 1-7/8" open end to tighten it up. I know that every time the fan comes on it tightens the fan but I don't want it to freewheel off when it stops or anything.



Thanks,



Dave

 

[JohnMcIntyre]

Horton Installation was almost a breeze.....



OK, here's the electronic version of the Horton Installation Manual , which I got just over a year ago, when I completed the install on my 3500. If you search for some of my posts on Horton you'll get a good idea, why there have been problems reported back on the install. ( It's a PDF type of file, so you'll need the Adobe Acrobat Reader, which is a free utility off the Web. )



The problem is NOT with the install itself. The supporting paperwork is a bit ambiguous in a couple of places, which I documented in my earlier post in this forum on the TDR. As long as you're fully aware of the anomalies, you shouldn't have any problem... ... BTW truck bio in profile bottom left corner

 

[cscott]

Dave



The special wrenchs are a must. You might also need a strap or chain wrench as well.



A normal wrench is too thick.



The local auto parts store should have the wrenches but they cost.



If you know a mechanic you might be able to sweet talk into borrowing them.



I went and bought a made in china set for $75. 00 I figured it would be worth it and I have let several friends borrow it.



Good Luck



Craig

 

[Powder Extreme]

Dave,



I've installed a Horton fan a couple of times. I now have the exact kit you are using. You definetly want to install the A/C pressure switch, be extra careful when doing so, the factory fitting where the factory switch is that the new one tee's off of is very flimsy. The connectors at the end of the harness should reach the temp switch in the head no problem, and also reach the A/C switch. The harness runs along the back side of the engine against the firewall from the driver's side to the passenger side to reach the two temp switches. Don't worry about torquing the coolant temp switch, just snug it down moderately with an end wrench. The connector midway down the harness is used for a transmission temp sensor. Since you have an automatic, you may want this switch so the fan will come on when your transmission gets too hot. The 12v+ switched makes no difference where you get it from. If you choose not to use the setup from Horton with the 3 prong connector etc, you can purchase the necessary single pin round connector from Napa to mate up to the Horton harness. You do not need to use a wrench to tighten the new fan on. Manually engage the clutch, tighten the fan by hand till the hub slips in the belt, then with the fan off, start the motor, rev to 2500rpm or so, and engage the clutch. Do that a couple of times and I guarantee the fan will not come off. In fact you will have one h*ll of a time getting it off with a wrench if you ever need to. If you can't find a wrench that fits the stock clutch, go to Dodge and sweet talk a mechanic into loosening it for you. Then you can remove the fan right there in their parking lot in about 5 minutes, drive home fanless and install the Horton. Hope this helps!



Jerry



PS. To anyone on the fence comparing electrics to Hortons: The electrics may flow enough in most situations, but if you want the most cooling available, you cannot beat the Horton. Pop the hood and feel the air from the Horton at 1800rpm or higher, you will NEVER find electrics that will flow this much. I'm speaking from a "been there, done that" experience. I had the biggest dual electric fans I could find on my old pickup. I could hit 235* workin the p*ss outta it, with the Horton I couldn't top 215.

 

[JohnMcIntyre]

Originally posted by Powder Extreme

To anyone on the fence comparing electrics to Hortons: The electrics may flow enough in most situations, but if you want the most cooling available, you cannot beat the Horton.

I second what Jerry says earlier in this thread. No electric fan comes anywhere close to the cooling potential of the Horton set-up.





JMc