Viscous Fan Clutch wrenches - Defender Source
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  #1  
Old July 17th, 2015, 05:02 PM
chuckc4
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chuck b
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Viscous Fan Clutch wrenches

Anyone near Albany NY, whom I can borrow the two wrenches I need to replace my viscous fan and water pump from?

Thanks,

Chuck
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  #2  
Old July 18th, 2015, 07:54 AM
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I use a large C wrench & a hammer. Works all the time.
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  #3  
Old July 18th, 2015, 09:20 AM
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I exhausted all suggested methods and finally removed it as a unit with the water pump, then cut it off. Now, all methods work .

You can borrow the 32/36 mm thin spanner from most auto parts stores if nearby...definitely try the method suggested above first.
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  #4  
Old July 18th, 2015, 09:27 AM
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Worth just buying the wrench in case it ever has to be done again.
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  #5  
Old July 18th, 2015, 10:08 AM
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1 1/4 inch open end and a hammer works well for me every time.
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  #6  
Old July 18th, 2015, 11:09 AM
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get the wrenches. 80% of the DIY jobs you do require that fan to come off. That's the first special tool anybody should have.
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  #7  
Old July 18th, 2015, 11:33 AM
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Brett Fritzler
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If its never been off it can be a real pain and smacking a wrench with a hammer may not get it. Ive used a free rental tool from Pep Boys to hold the viscous clutch while turning the nut.
Once you get it off slap some antiseize on there and the hammer smacking trick will work every time from there on out.
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  #8  
Old July 18th, 2015, 02:08 PM
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It's a tight fit for conventional wrenches. I went and bought a slim wrench for bikes. 32mm isn't it? Only cost me $12
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  #9  
Old July 18th, 2015, 02:14 PM
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Quote:
Originally Posted by SMac View Post
I exhausted all suggested methods and finally removed it as a unit with the water pump, then cut it off. Now, all methods work .
Lmao....

You left out one other method! Using a chisel to turn the nut.

Get the proper tool. punch it in amazon and its 40 or so. Same size nut as many BMWs so the tool is common and cheap. Less than 10 seconds and its off, you dont damage the water pump, your fingers, engine bay or the nut itself. When putting the fan cluch back on make sure tye threads are clean and apply a tiny bit of anti seize so it'll come off without any possible issues in the future.
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  #10  
Old July 18th, 2015, 02:43 PM
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Quote:
Originally Posted by Overlander View Post
get the wrenches. 80% of the DIY jobs you do require that fan to come off. That's the first special tool anybody should have.
That and a hub nut socket/wrench...
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  #11  
Old July 18th, 2015, 03:17 PM
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Quote:
Originally Posted by Departing90 View Post
Lmao.... You left out one other method! Using a chisel to turn the nut. Get the proper tool. punch it in amazon and its 40 or so. Same size nut as many BMWs so the tool is common and cheap. Less than 10 seconds and its off, you dont damage the water pump, your fingers, engine bay or the nut itself. When putting the fan cluch back on make sure tye threads are clean and apply a tiny bit of anti seize so it'll come off without any possible issues in the future.
36 for 4.0 GEMS IIRC. 180k and it was frozen solid. As I stated, I tried every method...including your chisel. And I whacked that sucker without regard for the WP...
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  #12  
Old July 18th, 2015, 06:10 PM
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  #13  
Old July 18th, 2015, 07:37 PM
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Seems to me this is what happens when you bang on a C wrench.....
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  #14  
Old July 18th, 2015, 09:08 PM
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I love wenches....
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  #15  
Old July 18th, 2015, 09:23 PM
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is there a photo of these spanners? are we talking about just a big open end wrench or is this thing special in some way?

I plan on pulling my VC and fan tomorrow.
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  #16  
Old July 18th, 2015, 09:36 PM
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They're also skinny oscar to allow you to slip in from the top. They're also long handled spanners.

http://pages.ebay.com/motors/link/?n...00618&alt=web*

I can measure how thick my fan spanner is in a few days or so
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  #17  
Old July 18th, 2015, 10:09 PM
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http://www.mec.ca/product/5010-729/f...10/50002+50530

28.5 canadian loonies for the double whammy. 32 for the diesel fans, and 36 for the v8?

As far as thickness, about 3/16" as I recall. Away from home so can't measure mine.
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  #18  
Old July 18th, 2015, 10:31 PM
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Yes, they ar skinny. And, they don't look like they are worth $100 US for the set from a certain rover parts supplier. they look like they are worth $10
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  #19  
Old July 18th, 2015, 11:06 PM
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Amazon has a craftsman set with the 36mm for $22
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  #20  
Old July 18th, 2015, 11:19 PM
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I bought the set I posted that's on ebay for $100 for $49 from Amazon a few years ago.

Great having the right tool.
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