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  #1  
Old 07-21-2007, 10:49 AM
 
Join Date: Jun 2007
Posts: 41
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Default Clutch Fan Hell

Ok I have a problem you guys and gals might be able to help me with

Truck is a 96 s-10 blazer LT, 4.3 Vortec...

Now my problem is as the title says, i am in clutch fan hell... I need to replace the waterpump and for some god awful reason, I can get the clutch fan off to get the the damn pump...

there were 4 10mm bolts that connected the pulley for the serpintine to the pump itself that i took off and was able to move the pulley, yet no go on the moveing the clutch fan off of it... there seems to be a center shaft i would say is 1 1/2 inch hexed that connects to the pump and for the life of me i have no clue from here on in how to get it off...

Suggestions and or a good wreckingball are welcome
  #2  
Old 07-21-2007, 01:58 PM
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Default RE: Clutch Fan Hell

Does this help?


[hr]



Fan Clutch Replacement
Removal Procedure
Caution
Do not use or attempt to repair a damaged cooling fan assembly. Replace damaged fans with new assemblies. An unbalanced cooling fan could fly apart causing personal injury and property damage.

1.Remove the upper fan shroud. Refer to Fan Shroud Replacement .

[IMG]local://upfiles/4800/C177B58E81744B78A6C9887424B02AE6.gif[/IMG]



2.Remove the fan clutch to the coolant pump drive pulley attaching nuts usingJ-41240 fan clutch wrench.
3.Separate the fan clutch assembly from the coolant pump drive pulley.
4.Remove the fan and the fan clutch as an assembly.

[IMG]local://upfiles/4800/D7DDDD2F57C4482AA12AA2BE619DA108.gif[/IMG]


5.Remove the fan-to-fan clutch mounting screws (2.2L w/o AC).

[IMG]local://upfiles/4800/889ABA5C583C4C3B95D23E9E8F9570AD.gif[/IMG]


6.Remove the fan to fan clutch mounting screws (4.3L all and 2.2L w/AC).
7.Remove the fan from the clutch.
Installation Procedure

[IMG]local://upfiles/4800/B9B0A3FE582B428D9B9630DB54D935DF.gif[/IMG]


1.Install the fan to the fan clutch mounting (2.2L w/o AC).

[IMG]local://upfiles/4800/9972DC8297ED4CCBA72A878A06445F66.gif[/IMG]

2.Install the fan to the fan clutch mounting (4.3L all and 2.2L w/AC).
3.Install the upper fan shroud. Refer to Fan Shroud Replacement .




4.Install the fan clutch to the coolant pump pulley using the J-41240 fan clutchwrench.
5.Install the attaching nuts.
6.Attach the fan to the clutch with the attaching screws. Tighten the screws to 33 N·m (24 lb ft).

Important
To maintain a balanced fan assembly, align the yellow paint mark on the fan clutch hub with the yellow paint mark on the water pump hub.


Tighten the nuts to 24 N·m (17 lb ft).








  #3  
Old 07-21-2007, 02:39 PM
 
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Default RE: Clutch Fan Hell

tyvm
  #4  
Old 07-21-2007, 04:16 PM
 
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Default RE: Clutch Fan Hell

Also the thread for the clutch fan mounting nut is a left hand thread....
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  #6  
Old 06-11-2009, 03:15 AM
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Quote:
Originally Posted by rriddle3 View Post
Does this help?


[hr]



Fan Clutch Replacement
Removal Procedure
Caution
Do not use or attempt to repair a damaged cooling fan assembly. Replace damaged fans with new assemblies. An unbalanced cooling fan could fly apart causing personal injury and property damage.

1.Remove the upper fan shroud. Refer to Fan Shroud Replacement .

[IMG]local://upfiles/4800/C177B58E81744B78A6C9887424B02AE6.gif[/IMG]



2.Remove the fan clutch to the coolant pump drive pulley attaching nuts usingJ-41240 fan clutch wrench.
3.Separate the fan clutch assembly from the coolant pump drive pulley.
4.Remove the fan and the fan clutch as an assembly.

[IMG]local://upfiles/4800/D7DDDD2F57C4482AA12AA2BE619DA108.gif[/IMG]


5.Remove the fan-to-fan clutch mounting screws (2.2L w/o AC).

[IMG]local://upfiles/4800/889ABA5C583C4C3B95D23E9E8F9570AD.gif[/IMG]


6.Remove the fan to fan clutch mounting screws (4.3L all and 2.2L w/AC).
7.Remove the fan from the clutch.
Installation Procedure

[IMG]local://upfiles/4800/B9B0A3FE582B428D9B9630DB54D935DF.gif[/IMG]


1.Install the fan to the fan clutch mounting (2.2L w/o AC).

[IMG]local://upfiles/4800/9972DC8297ED4CCBA72A878A06445F66.gif[/IMG]

2.Install the fan to the fan clutch mounting (4.3L all and 2.2L w/AC).
3.Install the upper fan shroud. Refer to Fan Shroud Replacement .




4.Install the fan clutch to the coolant pump pulley using the J-41240 fan clutchwrench.
5.Install the attaching nuts.
6.Attach the fan to the clutch with the attaching screws. Tighten the screws to 33 N·m (24 lb ft).

Important
To maintain a balanced fan assembly, align the yellow paint mark on the fan clutch hub with the yellow paint mark on the water pump hub.


Tighten the nuts to 24 N·m (17 lb ft).
Do you know where I can find a 41240 fan clutch wrench?
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  #7  
Old 06-11-2009, 11:12 AM
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Default

I used a strap wrench on the water pump pulley and a large enough size crescent wrench on the nut but I think the actual size is 38mm. Just did this to a 98 Blazer LS 4WD myself and the nut was right-handed.

Also, can get the "special tools" at NAPA.
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Last edited by rriddle3; 06-11-2009 at 11:35 AM. Reason: CONSECUTIVE POSTS
  #8  
Old 06-11-2009, 07:36 PM
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This is digging one up from the grave...

As spelled out in quite a few other threads on the subject, you can do it without special tools. But you can also "rent" the tools from your local Autozone and I am sure others...
Old 06-11-2009, 07:36 PM
 
 
 
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Tags
1995, 2000, 22, 43, blazer, bolt, chev, chevy, clutch, fan, removal, remove, removing, replacement, s10, size


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