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Stuck fan clutch nut

Discussion in 'Stock 1995 - 2001 Explorers' started by jtre, June 17, 2017.


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    1. jtre

      jtre Member

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      Anyone removed a fan clutch on a 5.0? Ive tried PB blaster and 2 hours or cussing and throwing wrenches and its not budging...any other way to get the thing off? Maybe possibly removing the belt and then removing the WP pulley and taking, the pulley, fan clutch and fan out as an assembly?
       
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    3. koda2000

      koda2000 Explorer Addict

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      I've removed 4-5 5.0 (and 4.0) fan nuts. They can be tough, but once they break free they can usually be removed with your fingers. I have found that the best tool to remove the fan nut is available from my local O'Reilly's as a loaner. It has a piece that holds the pulley by the bolts and a strong, well fitting wrench for the nut. With a helper holding the pulley, a few smacks on the wrench with my BFH has always broken the nut free. Do not bother with the tools that AutoZone and Advance lend/sell. They're made of soft steel and stretch the first time you use them (junk).

      Be sure you're attempting to turn the nut in the correct direction. All of mine were right hand thread, but I understand that some may be left hand thread. The correct direction to turn the nut should be embossed on your plastic fan shroud.

      I've read here that some have been able to break the nut loose with a large chisel, but I've never tried that approach.

      The fan nut must be removed to remove the fan and clutch. I know of no other method to remove the fan. The fan screws onto the water pump itself, not the pulley.
       
      Last edited: June 17, 2017
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    4. jtre

      jtre Member

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      unfortunately, I do not have an Oreilly near me, when I try to turn the nut the whole fan moves (but won't twist off). anyone have other suggestions? The one from AAP (powerbuilt) seems to slip on the nut. is it 36mm?
       
    5. Mickalo

      Mickalo Active Member

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      if i recall lisle makes a nice fan clutch tool set for about $50 I use to have one till my son-in-law borrowed it way back when. it worked great for my uses.
       
    6. jtre

      jtre Member

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      This thing isnt coming off, it is rusted solid and my wrench is starting to round out the nut. Will a blow torch on there work?
       
    7. koda2000

      koda2000 Explorer Addict

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      It seems like it's slipping because the open end of the is stretching.
       
    8. jtre

      jtre Member

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      so i need a better wrench? Do you happen to know the brand that you rent at Oreillys?
       
    9. koda2000

      koda2000 Explorer Addict

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    10. jtre

      jtre Member

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      would an air tool (i think leslie makes one) work for a seized nut? i dont want to risk buying another tool that may or may not work. Or, what will I need to do to take out the WP, fan and clutch as a unit?
       
    11. jtre

      jtre Member

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      how do people fit pipe and adjustable wrenches down there? has anyone done this? Im close to junking this truck over it because its not worth paying an arm and a leg at a mechanic
       
    12. XLTrunner

      XLTrunner Active Member

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      I own a cheap wrench set from Performance Parts and have never had a problem using it.

      .http://www.ebay.com/itm/Performance...834263?hash=item5b0ec54917:g:OEgAAOSweW5VVMuR

      For what it's worth, I have a spare water pump and fan/clutch ass'y for my '98 XLT and the nut would loosen by turning it counterclockwise as you're facing the front of the engine. I may be repeating the obvious, but you need to hold the belt pulley from turning by using the tool that straddles the bolts. Then, use the other open end wrench to turn the nut. The nut is actually attached to the end of the fan clutch shaft and, even when off the car, has resistance to turning. When I break the nut loose, I just turn the entire fan assembly to unscrew it all the way.
       
      Last edited: June 17, 2017
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    13. jtre

      jtre Member

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      yeah, the thing is pretty seized...the pulley holder that came with the tool works alright, but the wrench is junk. would it be safe to use heat on the nut?, also i believe (according to a video by a ford tech working on the same truck i have) it is 36mm
       
      Last edited: June 17, 2017
    14. jtre

      jtre Member

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      it is RH thread (so i guess that means turn it counter clock wise)
       
    15. jtre

      jtre Member

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      i officially give up, how much would a proper air hammer run me to take care of this thing? (i have access to a compressor)
       
    16. crunchie_frog

      crunchie_frog Active Member

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      Have you tried a long, large punch or chisel lined up at an angle on the nut and hit it with a big hammer? If the belt is still on, it will provide enough friction to hold the nut in place when you hit it. I have removed several this way.
       
    17. CDW6212R

      CDW6212R Elite Explorer

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      The WP shaft, and nut etc, is all tool steel, too hard to casually cut off. It's too tight in there to get at with anything but those special thin tools. I'd stop until you have the right tools that fit well. I hope the nut isn't rounded much, because the alternatives are much harder than the proper tool method. I wish the rented tools were all properly sized, my first encounter was with a bad tool set. I gave up and used a friend's huge Channel Lock pliers. That eventually worked, but getting it in there cracked the fan a bit. I would not do that again.
       
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    18. XLTrunner

      XLTrunner Active Member

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      Just to confirm...the nut is, in fact, a 36 mm (just measured the one on my spare).
       
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    19. koda2000

      koda2000 Explorer Addict

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      RH thread means standing in front of the truck you turn the fan nut counter-clockwise to remove it. Clockwise to tighten it.

      BTW: You don't say why you're removing the fan/clutch, but if you're planning on changing the 5.0L water pump, once the fan is out of the way your fun is just beginning. Changing a water pump on a 5.0L is usually one of the most miserable job you can do. This is because the long bolts tend to rust inside the water pump, seize and snap. I'm an avid DIY'er, but I now pay someone to do that job.
       
      Last edited: June 18, 2017 at 10:05 AM
    20. jtre

      jtre Member

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      this thing is seized. nothing shiny left on the nut or shaft, all rust. I have tried channel locks, the tool kit, a hammer and punch and an air chisel/punch. It seems like this thing has been off before and they put lock tite on it.
       
    21. jtre

      jtre Member

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      [​IMG]

      so here is the nut, does it look too rounded to you guys? I dont want to waste more money on a tool if it is too rounded to get off with a wrench. I measured the POS advance wrench opening and it is 40mm
       
    22. jtre

      jtre Member

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      im aware of those pitfalls, luckily I have snapped plenty of bolts and am used to dealing with those situations. unfortunately, this is not a piece that I can drill out or use an extractor kit or something and call it a day.
       
    23. Josh P

      Josh P Shaggin Wagon Elite Explorer

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      When I changed the clutch fan on my car I got a 36 mm wrench from napa. I used pliers made for removing oil filters to hold on the pulley, it destroyed the belt but I was replacing it anyway. A friend gave the wrench a few smacks with a hammer to break it free. I don't think that nut is too rounded off to be removed.
       
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    24. jtre

      jtre Member

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      FINALLY got it off with some big channel locks and a breaker bar on the pulley holder tool (with help from a buddy)...beer time
      before I tackle the rest of this wonderful job
       
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    25. koda2000

      koda2000 Explorer Addict

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      Personally, I would not reinstall that fan clutch, but you can probably get away with reusing it as long as you install it with the channel locks. The nut doesn't need to be super tight, as it tightens itself when the engine is running (don't put any thread locker on the threads).

      I'm betting that once you got the nut broken free the threads on the w/p didn't even have any rust on them?
       
    26. 96firephoenix

      96firephoenix Active Member

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