How do you remove the fan from 1998 f150 4.2 liter
How do you remove the fan and fan clutch from 1998 f150 4.2 liter engine. i am trying to replace the water pump but i cannot get the fan to break loose . i cannot figure how to stop pump from turning while trying to loosen the bolt or nut that holds the fan clutch on the water pump shaft .
Re: how do you remove the fan from 1998 f150 4.2 liter
How do you remove the fan and fan clutch from 1998 f150 4.2 liter engine. i am trying to replace the water pump but i cannot get the fan to break loose . i cannot figure how to stop pump from turning while trying to loosen the bolt or nut that holds the fan clutch on the water pump shaft . is there a special tool to help me with this
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4 bolts hold the shroud on. 2 on bottom,2 on top. Leave on in on the top until you remove the clutch fan. Clutch fans are a pain to get off with out the right tools. Once off, remove the bolt from the shroud and pull them out together. Remove the serpentine belt. Remove the pump.
when engine over heating to keep from doing engine damage determine how long you drive vechicle if you stopped in time.replace thermostat, radiator pressure cap and replace radiator if it has holes in it and leaking replace top and bottom radiator hoses.check your engine oil on oil dip stick if dip stick look like milk shake you could blowed head gasket if you did drive too long when truck over heated.check your radiator cooling clutch fan should when engine cold turn clutch fan by hand should drag when engine get hotter then clutch fan should be more harder to turn by hand.if clutch fan feel loose and spin easily free wheel clutch fan need replacing it will cause engine to overheat.
A Clutch FAN Requires the 4 Nuts/Bolts @ the Pully Bunched up in the Center Behind the FAN & In Front of Water Pump, Once Assmbly is Removed there are 4 BOLTS that Fasten the (FAN) to the CLUTCH assembly. It is Wise th REPLACE BOTH FAN & FAN CLUTCH ASSEMBLY AS A SET
You will need a special holding wrench made by "LISLE TOOLS" or "OTC", most tools stores stock it
its fairly cheap, looks like a long thin como wrench, and might com in two pcs, one for fan clutch.
When I do those I find it's easier to get some of the stuff out of the way. Fan shroud, Alternator, AC compressor(don't remove AC hoses just swing it over to the side) and the AC/alternator mount bracket. If you don't have the special hose clamp plyers they are worth buying. (those clamps are difficult with regular plyers) The fan clutch has a special wrench which is thinner. When you start the job break loose the fan clutch before you remove the belt. It keeps tension on the pulley. The nut is normal threading and usually comes loose with a sharp rap of the hammer on the fan clutch wrench.
Here is an illustration of the water pump bolts. I hope this helps you out. let me know how it goes.
There is a special tool that is required to hold the fan clutch. Then the fan screws out of the clutch. The tool can be bought or rented at your friendly parts store like autozone, etc. It will look something like this:
Normally, the fan will not spin at the same RPM as the engine. This is
the purpose of the fan clutch. On the fan clutch sits a little thermal
spring that engages the clutch to spin the fan at the same rpm as the
motor when the motor gets hotter than normal.
Being able to hold onto the fan while the motor is running, is normal (not recommended, but normal).
You can test the clutch by heating it and then trying to spin the fan
while the motor is off. If it is still easy to spin, you could have a
bad fan clutch, or you didn't heat it enough. It is kind of a crappy
way to test.
You not having cooling issues leads me to guess that your clutch is
alright. But I don't know what type of climate you live it, nor do I
know in what condition your clutch is.
They can actually be difficult to replace. Easy theory, but actually
doing the job may be harder than you think. They are threaded onto the
water pump pulley (just one big threaded stud). To remove you need to
either be really crafty, or you need a wrench designed to hold the
pulley in place while you loosen the clutch and fan assembly. No, the
pulley drive belt is not enough to keep the pulley from turning (it
will either slip or you will turn the crank of the motor).
Usually they are on there pretty tight! When I replaced my water pump
on my truck, I could not remove the fand and clutch from the water pump
while in the truck (I had to remove my radiator shroud and remove it
all in one piece) then I had to weld the old water pump impeller to the
casting to keep it from spinning then broke it loose with a 2ft breaker
Once you get the old one off, remove the fan and bolt it to your new clutch unit. Then thread it on the water pump.
well if i remember correctly that fan clutch is reverse threads so in other words to loosen it you'll have to turn your wrench clockwise. they do this cuz the rotation of the fan will tighten itself onto the water pump. anyway what i do is leave the serpentine belt on the the pulleys and that will kinda hold them steady whilst you put the "special" wrench on the clutch and pop it loose you'll prolly need a cheater bar to make things easier but not too much or you'll overcome the traction of the belt and it will just slip.