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Can't get fan clutch loose
http://www.lostjeeps.com/forum/phpBB3/viewtopic.php?f=5&t=54867		 Page 1 of 1
Author:  TJ2 [ Wed Aug 11, 2010 4:54 pm ]
Post subject:  Can't get fan clutch loose
Have tried the adjustable wrench smacked with small sledge approach. . . for over an hour. I did what GDE suggested and put some penetrating lube on the nut. That was a mistake. It simply lubed the belt to pulley surface making it turn even more easily.

I tried wedging a pry bar behind the pulley. I tried driving a piece of hardwood behind it.

The location doesn't seem like a good place to apply heat.

Any suggestions?
Author:  tjkj2002 [ Wed Aug 11, 2010 6:48 pm ]
Post subject:  Re: Can't get fan clutch loose
Image



Use with a air hammer,takes seconds to loosen or tighten,works wonders and worth the $160 for the kit.
Author:  KJ 119 [ Wed Aug 11, 2010 6:55 pm ]
Post subject:  Re: Can't get fan clutch loose
tjkj2002 wrote:
Image



Use with a air hammer,takes seconds to loosen or tighten,works wonders and worth the $160 for the kit.


Napa?
Author:  tjkj2002 [ Wed Aug 11, 2010 7:31 pm ]
Post subject:  Re: Can't get fan clutch loose
KJ 119 wrote:
tjkj2002 wrote:
Image



Use with a air hammer,takes seconds to loosen or tighten,works wonders and worth the $160 for the kit.


Napa?

http://www.toolsource.com/pneumatic-clutch-wrench-p-89963.html

There are other kits that use a holder instead of a air hammer also,some cheaper and some more expensive.If you know what size the clucth nut is you can get that one size and the holder for less the $75.
Author:  BlackLibertyCRD [ Thu Aug 12, 2010 1:17 am ]
Post subject:  Re: Can't get fan clutch loose
Some auto parts store have a tool loaner program. Get it loose and give it back. Never tried the air hammer one. One slip and you can be through the radiator or worst. :dizzy: The fan clutch kit is 2 wrench deal, one to hold the pulley and another to break loose the nut. You can even use a long 1/2 breaker bar on the end of the wrench.
Author:  tjkj2002 [ Thu Aug 12, 2010 1:22 am ]
Post subject:  Re: Can't get fan clutch loose
BlackLibertyCRD wrote:
Some auto parts store have a tool loaner program. Get it loose and give it back. Never tried the air hammer one. One slip and you can be through the radiator or worst. :dizzy: The fan clutch kit is 2 wrench deal, one to hold the pulley and another to break loose the nut. You can even use a long 1/2 breaker bar on the end of the wrench.

Can't slip with the air hammer attachment ones,your more prone to slipping with the 2 wrench manual kind and 10x's the work.
Author:  KJ 119 [ Fri Aug 13, 2010 3:46 pm ]
Post subject:  Re: Can't get fan clutch loose
tjkj2002 wrote:
Use with a air hammer,takes seconds to loosen or tighten.


I'm not sure you could fit an air hammer in a CRD.I can barely get my hands in there.
Author:  kdlewis1975 [ Fri Aug 13, 2010 4:44 pm ]
Post subject:  Re: Can't get fan clutch loose
TJ2 wrote:
Have tried the adjustable wrench smacked with small sledge approach. . . for over an hour. I did what GDE suggested and put some penetrating lube on the nut. That was a mistake. It simply lubed the belt to pulley surface making it turn even more easily.

I tried wedging a pry bar behind the pulley. I tried driving a piece of hardwood behind it.

The location doesn't seem like a good place to apply heat.

Any suggestions?


I'm right there with ya brother. I did find that you can force a long screw driver...the 12" Craftsman variety with the 1/4" slot tip and have it pinned by the engine lift point. I gave up on the project for now as I am at my parents' house 400 miles from my residence. I decided I'd be better off to break it up there than down here wher I'd have to borrow a vehicle and then come back and get it.

I also tried jamming a piece of wood or a sufficiently small/large socket between the fan pulley and idler pully. With my belt already being lubricated, it didn't do much to hold it.
Author:  jeepdan [ Fri Aug 13, 2010 5:21 pm ]
Post subject:  Re: Can't get fan clutch loose
I had to make both wrenches. Could not find a pinned spanner to buy or rent to hold the pulley as shown in the FSM, so I made that one. Then I rented a Clutch Fan wrench set from Advanced Auto and the thinly made wrench just sprung open, so I had to make that wrench out of 3/8" steel with a long bar handle on it so I could strike it with a hammer to loosen the clutch.
Geeze, if an air hammer will fit that would be great, but you still need to hold the pulley. It was tight! Oh yea, I had to buy the damaged wrench set.
Author:  tjkj2002 [ Fri Aug 13, 2010 9:00 pm ]
Post subject:  Re: Can't get fan clutch loose
[quote="jeepdan]Geeze, if an air hammer will fit that would be great, but you still need to hold the pulley. It was tight! Oh yea, I had to buy the damaged wrench set.[/quote]


It will fit,that main bar is about 15" long.
Author:  kdlewis1975 [ Fri Aug 13, 2010 11:32 pm ]
Post subject:  Re: Can't get fan clutch loose
If anyone is wondering, a 1-7/16" wrench fits the nut. It was probably intended to be metric, and this could be one of the sizes that overlaps.

And I came to the same conclusion...gonna have to build that special wrench to hold the pulley so that can I wail on fan nut.

I'm planning on leaving the thing off. But if I put it back on, it's going to have a good layer of anti-sieze applied to make disassembly easier in the future.
Author:  kapalczynski [ Sat Aug 14, 2010 12:35 am ]
Post subject:  Re: Can't get fan clutch loose
kdlewis1975 wrote:
If anyone is wondering, a 1-7/16" wrench fits the nut. It was probably intended to be metric, and this could be one of the sizes that overlaps.

And I came to the same conclusion...gonna have to build that special wrench to hold the pulley so that can I wail on fan nut.

I'm planning on leaving the thing off. But if I put it back on, it's going to have a good layer of anti-sieze applied to make disassembly easier in the future.


Good luck on getting that off man!!! I'm rooting for you! :rockon:

Once you do, there is an alternative to leaving it off...should you like to have a fan just in case you need to drive up hills or tow anything...i

Fixed Flex Fan (FFF).

P.S. you can unscrew the 4 bolts on the adapter to remove the fan w/o having to unscrew the big nut part if you have the Fixed Flex Fan mod. Not to mention the fixed fan will never go out like a fan clutch. :) Far superior cooling, easy maintenance.

- Mark
Author:  racertracer [ Sat Aug 14, 2010 5:52 am ]
Post subject:  Re: Can't get fan clutch loose
A flex fan modification makes sense and is in my future mod.
Author:  DOC4444 [ Sat Aug 14, 2010 3:55 pm ]
Post subject:  Re: Can't get fan clutch loose
Check out this recent thread: viewtopic.php?f=5&t=53955
No reason to buy any tools. The right box wrench, bolt and nut is all you need (plus a big crescent wrench and a big hammer).

DOC
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