Thermostatic Fan Clutch Removal ??
#1
Thermostatic Fan Clutch Removal ??
This morning I tried to install the Underdog underdrive crank pulley, but could not remove the fan and thermostatic clutch assembly to install the harmonic balancer puller.
The shaft is hex shaped so I suspect it unscrews from the water pump hub.
Has anyone removed the thermostatic clutch and fan assembly before?
If this were my Jeep Cherokee.... I would not be posting this question...., but working on the Ranger is always a learning curve....
This vehicle is the truck in my signature below.
Thanks for your assistance.... and early Merry Christmas.
OR 4x4
The shaft is hex shaped so I suspect it unscrews from the water pump hub.
Has anyone removed the thermostatic clutch and fan assembly before?
If this were my Jeep Cherokee.... I would not be posting this question...., but working on the Ranger is always a learning curve....
This vehicle is the truck in my signature below.
Thanks for your assistance.... and early Merry Christmas.
OR 4x4
#2
It does. I'm not sure about the 4.0 OHV. The 3.0 has a reverse thread on the clutch, and the 4.0 SOHC has a normally threaded fan clutch thread.
So, I guess #1 is knowing which way it goes.
The way I took mine off, when I went to an electric fan, was to use a chisel and a hammer. You can use the chisel to strike the hex obliquely and it works like an impact wrench -- you break loose the thread without having to worry about slipping of the belt.
Still, you need to know which way to go. I'll pull out one of the service CD's for that year and see what it says and post back.
So, I guess #1 is knowing which way it goes.
The way I took mine off, when I went to an electric fan, was to use a chisel and a hammer. You can use the chisel to strike the hex obliquely and it works like an impact wrench -- you break loose the thread without having to worry about slipping of the belt.
Still, you need to know which way to go. I'll pull out one of the service CD's for that year and see what it says and post back.
#3
#4
#5
Okay, verifying from the manual that the 4.0 SOHC and 4.0 OHV are the same. Both have a fan clutch that is threaded on with a "normal", right hand thread.
Rand's right, there is a special tool. But if you're ditching the clutch especially, the chisel method works fine. I don't know why so many folks have cringed when I've spoken of it though, lol.
Rand's right, there is a special tool. But if you're ditching the clutch especially, the chisel method works fine. I don't know why so many folks have cringed when I've spoken of it though, lol.
#6
Originally Posted by OffRoad 4x4
John,
Thanks for your assistance.
I measured the hex and it appears to be 1.5" or 38mm.
The service manual CD I have is so VAGUE.... it is almost useless !!!!
Just says you need a couple special tools, but says nothing about the hex size or what direction to turn it.
OR 4x4
Thanks for your assistance.
I measured the hex and it appears to be 1.5" or 38mm.
The service manual CD I have is so VAGUE.... it is almost useless !!!!
Just says you need a couple special tools, but says nothing about the hex size or what direction to turn it.
OR 4x4
#7
#8
#10
Originally Posted by OffRoad 4x4
John,
In you first post you said the threads are right hand thread and then in your last post you state the OHC and OHV are the same; left hand threads. Am I reading one of these wrong ???
OR 4x4
In you first post you said the threads are right hand thread and then in your last post you state the OHC and OHV are the same; left hand threads. Am I reading one of these wrong ???
OR 4x4
Correction: 4.0 - right hand (standard); 3.0 - left hand (reverse)
My inattentiveness, sorry!
#11
Tried again this evening to remove the clutch fan... Looks like I am need to locate the special tools.... While I can use a 1.5" open end wrench on the hex shaft I could not locate anything to stop the water pump pulley from spinning. Unless the clutch fan can be removed.... there is not enough room to remove the harmonic balancer.
So close and yet so far......
OR4x4
So close and yet so far......
OR4x4
#12
Originally Posted by OffRoad 4x4
Tried again this evening to remove the clutch fan... Looks like I am need to locate the special tools.... While I can use a 1.5" open end wrench on the hex shaft I could not locate anything to stop the water pump pulley from spinning. Unless the clutch fan can be removed.... there is not enough room to remove the harmonic balancer.
So close and yet so far......
OR4x4
So close and yet so far......
OR4x4
#14
It Is Installed......
Today after eating Christmas lunch... I decided to try removing the fan clutch !!!
First I removed the K&N FIPK air tube and the factory fan belt.
Using a rubber strap wrench to hold the waterpump pulley I used a 1.5" wrench on the clutch fan hex shaft and tapped on the wrench lightly with a ballpean hammer.... VVVWHALA the shaft was loose.
Next came the crankshaft pulley... the bolts that came in the ASP kit for removal were TOO long..... Needed to locate (2) 8x1.25x100mm bolts, screwed them into the crankshaft pulley and used a harmonic balancer puller and it too was removed.
Removed oil seal from the factory pulley, installed the factory oil seal on the ASP pulley, applied a small dab of RTV to the hub key, warmed up the ASP pulley hub and put a little synthetic grease on the crank hub, pressed the ASP pulley on half way with the provided ASP bolt and the remainder of the way with the factory bolt.
Installed a new Gatorback POLY-V belt 6PK2195 (4606865) which is exactly 1.9" shorter than the factory belt.
There is quite a noticable difference in acceleration..... Time will tell if there is any increase in MPG.
OR 4x4
First I removed the K&N FIPK air tube and the factory fan belt.
Using a rubber strap wrench to hold the waterpump pulley I used a 1.5" wrench on the clutch fan hex shaft and tapped on the wrench lightly with a ballpean hammer.... VVVWHALA the shaft was loose.
Next came the crankshaft pulley... the bolts that came in the ASP kit for removal were TOO long..... Needed to locate (2) 8x1.25x100mm bolts, screwed them into the crankshaft pulley and used a harmonic balancer puller and it too was removed.
Removed oil seal from the factory pulley, installed the factory oil seal on the ASP pulley, applied a small dab of RTV to the hub key, warmed up the ASP pulley hub and put a little synthetic grease on the crank hub, pressed the ASP pulley on half way with the provided ASP bolt and the remainder of the way with the factory bolt.
Installed a new Gatorback POLY-V belt 6PK2195 (4606865) which is exactly 1.9" shorter than the factory belt.
There is quite a noticable difference in acceleration..... Time will tell if there is any increase in MPG.
OR 4x4
#18
#19
Here is how you can hold the waterpump still without damaging it. Just take a 2" pipe (fence pipe is what I used), smash it flat, and drill / grind the end such that it fits over the hex clearing it. Then unbolt two of the pulley screws and bolt on the pipe. Now you have a huge lever that you can use to hold the pump still and NOT damage or scratch the pumps pulley.
Rich
Rich
#21
Unregistered User
Posts: n/a
Originally Posted by n3elz
The way I took mine off, when I went to an electric fan, was to use a chisel and a hammer.
they make a special tool(s) for getting the fan clutch off
www.matcotools.com
Thread
Thread Starter
Forum
Replies
Last Post
Want to Buy: 3.0l Good Clutch-Fan or E-Fan setup.
Skuce
OLD - Engine & Drivetrain
6
09-08-2009 09:46 PM
CaptainScarlet
General Technical & Electrical
19
03-19-2006 04:08 AM
Ranger1
General Ford Ranger Discussion
10
12-27-2005 11:15 AM
n3elz
2.9L & 3.0L V6 Tech
38
11-01-2005 04:34 PM