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Tools to remove viscous fan
http://www.lostjeeps.com/forum/phpBB3/viewtopic.php?f=5&t=64982		 Page 1 of 2
Author:  Phil121 [ Wed Feb 01, 2012 7:41 am ]
Post subject:  Tools to remove viscous fan
Hi All
I have noticed that removing the viscous fan has prompted several methods of attacking the job. I came across a couple of very inexpensive tools that make the job quick and simple, so thought I might share my find with you all.
Image

The 36mm spanner has a cranked handle to reach behind the fan. Available from e-bay shop, JGS 4X4 Land Rover Parts, at £4.49. They have them made specially.

Viscous fan hub holder made by Sealey tools available from Amazon at £13.

It’s always going to be cheaper to ram a metal rod of some form into the hub to secure it, but just thought this may be useful to some of you guys.
Author:  racertracer [ Wed Feb 01, 2012 8:15 am ]
Post subject:  Re: Tools to remove viscous fan
They look like excellent viscous fan removal tools.

Thanks for the heads up
Author:  ATXKJ [ Thu Feb 02, 2012 10:07 pm ]
Post subject:  Re: Tools to remove viscous fan
for the US - Northern Tools has a 36mm open/box end wrench for about $20 - cheap.

however nothing like that Sealy hub holder...
Author:  BlackLibertyCRD [ Fri Feb 03, 2012 12:56 am ]
Post subject:  Re: Tools to remove viscous fan
The fan pulley has a couple of holes in it for the proper holding tool. The holding tool and a 36mm wrench with a long breaker bar will loosen any fan unless it is welded. I haven't seen that yet. :-)r
Author:  Lancer [ Fri Feb 03, 2012 7:10 pm ]
Post subject:  Re: Tools to remove viscous fan
BlackLibertyCRD wrote:
The fan pulley has a couple of holes in it for the proper holding tool. The holding tool and a 36mm wrench with a long breaker bar will loosen any fan unless it is welded. I haven't seen that yet. :-)r

I'll bet money that I find they've have done it to mine when I come to replace the fan and clutch! :lol:
Author:  turbobill [ Sat Feb 04, 2012 12:55 pm ]
Post subject:  Re: Tools to remove viscous fan
When I pulled my fan I was very surprised what a small force was necessary to break the threads loose, once I had the hub locked. I am sure the fan had been on for 100K miles and 6 years. Maybe MOPAR used anti-seize when they initially installed the fan.
Author:  Phil121 [ Sat Feb 04, 2012 1:53 pm ]
Post subject:  Re: Tools to remove viscous fan
BlackLibertyCRD wrote:
The fan pulley has a couple of holes in it for the proper holding tool. The holding tool and a 36mm wrench with a long breaker bar will loosen any fan unless it is welded. I haven't seen that yet. :-)r



If you can find the proper new miller fan removal tool for less than £13 I'll buy it for you.
Author:  racertracer [ Sat Feb 04, 2012 1:56 pm ]
Post subject:  Re: Tools to remove viscous fan
Phil121 wrote:
If you can find the proper new miller fan removal tool for less than £13 I'll buy it for you.


x2
Author:  BlackLibertyCRD [ Sat Feb 04, 2012 6:39 pm ]
Post subject:  Re: Tools to remove viscous fan
Napa 41570
Be careful about questioning someone with 40 plus years automotive experience and already have the tools to do the job. This one is made by K-D and I don't care for one made by Miller. :dead:

This one is without buying the whole kit. Just send the money, I already have the wrenches.

http://www.ebay.com/itm/Napa-3pc-Fan-Cl ... 890wt_1037
Author:  racertracer [ Sat Feb 04, 2012 8:41 pm ]
Post subject:  Re: Tools to remove viscous fan
BlackLibertyCRD wrote:
Napa 41570
Be careful about questioning someone with 40 plus years automotive experience and already have the tools to do the job. This one is made by K-D and I don't care for one made by Miller. :dead:

This one is without buying the whole kit. Just send the money, I already have the wrenches.

http://www.ebay.com/itm/Napa-3pc-Fan-Cl ... 890wt_1037


Well that's a good one too.
Author:  TJ2 [ Sat Feb 04, 2012 10:06 pm ]
Post subject:  Re: Tools to remove viscous fan
racertracer wrote:
BlackLibertyCRD wrote:
Napa 41570
Be careful about questioning someone with 40 plus years automotive experience and already have the tools to do the job. This one is made by K-D and I don't care for one made by Miller. :dead:

This one is without buying the whole kit. Just send the money, I already have the wrenches.

http://www.ebay.com/itm/Napa-3pc-Fan-Cl ... 890wt_1037


Well that's a good one too.


Yes, thanks for both suggestions. I just went with the NAPA ebay tool. Much cheaper than NAPA online. My fan threads have anti-seize this time around. Tool and a seize should make it a different experience.
Author:  Phil121 [ Sun Feb 05, 2012 1:48 pm ]
Post subject:  Re: Tools to remove viscous fan
BlackLibertyCRD wrote:
Napa 41570
Be careful about questioning someone with 40 plus years automotive experience and already have the tools to do the job. This one is made by K-D and I don't care for one made by Miller. :dead:

This one is without buying the whole kit. Just send the money, I already have the wrenches.

http://www.ebay.com/itm/Napa-3pc-Fan-Cl ... 890wt_1037

40 years wow you dont get that for murder, nice set of NAPA tools so there is something positive in there. I would of course be pleased to buy you a set just pop round for the cash :lol:
Author:  jrsavoie [ Thu Dec 24, 2015 7:20 pm ]
Post subject:  Re: Tools to remove viscous fan
There are several people running without a fan.

When you run without a fan, do you just remover the fan or do you remove clutch and all?

This might be self explanatory if I had looked at it before asking. Actually thought I was going to do that earlier. But it didn't happen and I'm sure won't happen until Sunday or so now.
Author:  geordi [ Thu Dec 24, 2015 7:35 pm ]
Post subject:  Re: Tools to remove viscous fan
Just remove the fan and clutch, leave the pulley in place.

The problem with those non-adjustable flat wrenches is that the jaws weaken and open with repeated uses. My Napa wrench ($27) lasted about 20 uses or so.

You don't need anti-seize on the threads, in fact I would advise against that. The fan just needs to be snugged into place and will never unlock by accident... Unless the threads are really smooth from the paste. I had one fan that I didn't bump to secure that was spat off the engine the third time it was shut down. All secure ever since, by just lightly torquing.
Author:  craws010 [ Mon Dec 25, 2017 12:30 am ]
Post subject:  Re: Tools to remove viscous fan
I bought the NAPA SER 3900 pulley tool based on the reported success from other members who used this tool to remove the fan clutch. One of the pins broke on my first attempt to break the fan clutch loose. I found that replacing the included pins with 3/8 - 24 threaded bolts was a good solution. This is the same size and thread pitch as the pins that were included with the tool. Just thread them into the tool and they fit nicely into the two holes on the fan hub.
I found the not-so-common 24 thread pitch in 3/8 at O'Reilly Auto Parts after my unsuccessful search for them at Home Depot.
Author:  WWDiesel [ Mon Dec 25, 2017 11:21 am ]
Post subject:  Re: Tools to remove viscous fan
This is a neat little tool set for removing fan clutches if you have a pneumatic impact hammer!

Lisle 43300 pneumatic fan clutch wrench tool set

Image
Author:  tjkj2002 [ Mon Dec 25, 2017 1:02 pm ]
Post subject:  Re: Tools to remove viscous fan
WWDiesel wrote:
This is a neat little tool set for removing fan clutches if you have a pneumatic impact hammer!

Lisle 43300 pneumatic fan clutch wrench tool set

Image

What I use at work,takes seconds to loosen any fan clutch.

Glad I bought my set years ago when it was only $85,now most are $140-$160.
Author:  craws010 [ Mon Dec 25, 2017 1:54 pm ]
Post subject:  Re: Tools to remove viscous fan
WWDiesel wrote:
This is a neat little tool set for removing fan clutches if you have a pneumatic impact hammer!

Lisle 43300 pneumatic fan clutch wrench tool set


That’s pretty slick. Would certainly be easier than managing the holder and wrench.
Author:  geordi [ Mon Dec 25, 2017 4:20 pm ]
Post subject:  Re: Tools to remove viscous fan
tjkj2002 wrote:
WWDiesel wrote:
This is a neat little tool set for removing fan clutches if you have a pneumatic impact hammer!

Lisle 43300 pneumatic fan clutch wrench tool set

Image

What I use at work,takes seconds to loosen any fan clutch.

Glad I bought my set years ago when it was only $85,now most are $140-$160.


I have that set too - Tried with an SDS hammer and wasn't impressed, the action and the way it fits are still kinda goofy - and you still need a holding tool or something jammed in one of the holes to lock the pulley.

The trick is being able to hold (lock) the pulley and loosen the nut - but NOT drop the tool down the engine so if you have to get it a second time, you still have the tool to do it with.
I've had decent success with just a big honkin 15" C-wrench and dead blow mallet from Home Depot. One of these days I need to get the Napa wrench replaced, that had a socket wrench box in the end of the handle so you could make the wrench longer with that - worked great for leverage until the wrench jaws stretched.
Author:  tjkj2002 [ Mon Dec 25, 2017 6:21 pm ]
Post subject:  Re: Tools to remove viscous fan
geordi wrote:

I have that set too - Tried with an SDS hammer and wasn't impressed, the action and the way it fits are still kinda goofy - and you still need a holding tool or something jammed in one of the holes to lock the pulley.

.

A long barrel hammer works better.

Keep the belt on,the only holding required.

I use this kit on a almost daily basis and it works better then anything else on the market.I have not had a clutch not come loose in 2-3 seconds at most,most cases it breaks loose after 0.5 seconds.
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