fan removal
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Freshman User
Joined: Jul 2003
Posts: 26
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From: Sacramento, CA
fan removal
Sorry for such a basic question here but Im having trouble removing my fan. 87 6.9 cant get the fan removed. Do they have reversed threads? Whats the best wrench to use. I have been using a pipe wrench with a cheater bar but the pulleys slip and Ive removed a yard of hide from my knuckles. Hopefully someone (probly dave S with his engine pulling experience) has a quick easy suggestion that im over lokking.
Thanks for your help
Thanks for your help
Senior User
Joined: Dec 2003
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From: Grosse Ile Mi.
You can buy the tools lot of places on line and tool supplies the threads are left handed.. reverse.. one wrench goes around the 4 bolts that hole the pully on the other goes on the fan nut..
Posting Guru
Joined: Aug 2006
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From: Kent WA
If you're trying to remove it clutch and all (BIG nut between the fan clutch and water pump) the nut turns clockwise to remove it. I used a 15" crescent wrench to get mine off.
If you are trying to remove just the fan (4 or 5 bolts holding fan to clutch) those are normal thread and turn counter clockwise to remove.
If you are trying to remove just the fan (4 or 5 bolts holding fan to clutch) those are normal thread and turn counter clockwise to remove.
Freshman User
Joined: Feb 2006
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I have the tools but I find that they really don't work well in the engine bay. I have done two so far and both of them could not be freed attached to the engine.
The one tool surrounds the 4 bolts that hold the pulley onto the water pump, the other goes over the big nut of the clutch fan. There is too much play on the pulley, and I would assume that the nut has seized on making the job impossible.
You could try torching the nut, but you run the risk of damaging the clutch fluid, unless it is seized, in which you wont care. Once cooled try penetrating oil to loosen it. There usually is lock-tite applied so the heat helps break the seal, then the oil might help.
In my case, I have never been able to do it. I had to take out the rad, then the whole fan-clutch, and water pump out. Then on the bench where two people can work together, break it free. It is a left hand thread (just a reminder). It's a real pain!
Good luck.
Das Ungetum.
The one tool surrounds the 4 bolts that hold the pulley onto the water pump, the other goes over the big nut of the clutch fan. There is too much play on the pulley, and I would assume that the nut has seized on making the job impossible.
You could try torching the nut, but you run the risk of damaging the clutch fluid, unless it is seized, in which you wont care. Once cooled try penetrating oil to loosen it. There usually is lock-tite applied so the heat helps break the seal, then the oil might help.
In my case, I have never been able to do it. I had to take out the rad, then the whole fan-clutch, and water pump out. Then on the bench where two people can work together, break it free. It is a left hand thread (just a reminder). It's a real pain!
Good luck.
Das Ungetum.
Posting Guru
Joined: Aug 2006
Posts: 2,175
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From: Kent WA
Originally Posted by Das Ungetum
I have the tools but I find that they really don't work well in the engine bay. I have done two so far and both of them could not be freed attached to the engine.
The one tool surrounds the 4 bolts that hold the pulley onto the water pump, the other goes over the big nut of the clutch fan. There is too much play on the pulley, and I would assume that the nut has seized on making the job impossible.
You could try torching the nut, but you run the risk of damaging the clutch fluid, unless it is seized, in which you wont care. Once cooled try penetrating oil to loosen it. There usually is lock-tite applied so the heat helps break the seal, then the oil might help.
In my case, I have never been able to do it. I had to take out the rad, then the whole fan-clutch, and water pump out. Then on the bench where two people can work together, break it free. It is a left hand thread (just a reminder). It's a real pain!
Good luck.
Das Ungetum.
The one tool surrounds the 4 bolts that hold the pulley onto the water pump, the other goes over the big nut of the clutch fan. There is too much play on the pulley, and I would assume that the nut has seized on making the job impossible.
You could try torching the nut, but you run the risk of damaging the clutch fluid, unless it is seized, in which you wont care. Once cooled try penetrating oil to loosen it. There usually is lock-tite applied so the heat helps break the seal, then the oil might help.
In my case, I have never been able to do it. I had to take out the rad, then the whole fan-clutch, and water pump out. Then on the bench where two people can work together, break it free. It is a left hand thread (just a reminder). It's a real pain!
Good luck.
Das Ungetum.
I did forget to mention that I had to unbolt the fan from the clutch to get it out with the radiator and fan shroud in place. I decided that was easier than removing the fan shroud - since I was replacing the clutch and had to unbolt it from the fan anyway.
Last edited by CheaperJeeper; Jan 18, 2007 at 12:29 PM.
Posting Guru
Joined: Aug 2006
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From: Kent WA
Originally Posted by DNewton
when i did mine, i believe i used a 1-7/8" wrench, put it on, then whacked it with my 4 lbs sledge, took a couple trys, but it came off! Dustin
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More Turbo
Joined: May 2006
Posts: 504
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From: Cameron, Ok
When I did mine, I had to use a brass drift and a 3# hammer to firmly tap the nut on the right side of the flat, several times around the diameter of the nut. It finally broke loose and was easy to finish taking off.
i ain't rite
Joined: Mar 2005
Posts: 65,569
Likes: 5,606
From: Marlboro Mental Hospital.
i guess i got lucky when i found the snap-on fan clutch wrench set at a yard sale, new in the sealed box, for $45.
it works great, and has saved the live of many knuckles, and small animals from getting hit by thrown wrenches and the like when those saved knuckles did not get mashed into something.
it works great, and has saved the live of many knuckles, and small animals from getting hit by thrown wrenches and the like when those saved knuckles did not get mashed into something.
