removing water pump
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Laughing Gas
Joined: Mar 2009
Posts: 1,028
Likes: 0
From: long island
removing water pump
i am trying to replace the water pump on a 92 f150 i6 and i cant get the fan off. i tried turning the nut but the fan bell just spins against the belt. i beat the **** out of the nut with a screwdriver and a hammer since 3:30 today and made no progress. i packed it in since it got dark, but i need to get this truck fixed. how do i get this fan off? its not opposite threads, is it?
Post Fiend
Joined: May 2004
Posts: 11,289
Likes: 6
From: Lakewood, Ohio
you need a clutch removal tool set from auto parts store.
you can rent them.
righty tighty unless marked on fan shroud.
the belt will not hold it.
do a search on fan clutch removal for more tips.
you can rent them.
righty tighty unless marked on fan shroud.
the belt will not hold it.
do a search on fan clutch removal for more tips.
Tuned
Joined: Jun 2005
Posts: 288
Likes: 0
From: Okanagan
If it's the 4 bolt flange I am thinking it is... use a prybar against the other bolt heads, wedged between the bolt heads and the fan mounting flange. Then use your wrench to crack all 4 bolts before removing them.
Excuse my speed drawing...
Excuse my speed drawing...
Last edited by Elderstarr; Nov 20, 2009 at 08:30 PM. Reason: pic
Thread Starter
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Laughing Gas
Joined: Mar 2009
Posts: 1,028
Likes: 0
From: long island
i actually removed those 4 bolts first and i think it worked against me. now whenever i make any progress turning the fan nut, the belt "drum" turns without the actual water pump. it sounds weird but if you have done this before you will get what i am saying. i can use a clutch removal tool with the fan still in the motor and in front of the radiator?
More Turbo
Joined: Sep 2003
Posts: 630
Likes: 4
From: Northeast
i actually removed those 4 bolts first and i think it worked against me. now whenever i make any progress turning the fan nut, the belt "drum" turns without the actual water pump. it sounds weird but if you have done this before you will get what i am saying. i can use a clutch removal tool with the fan still in the motor and in front of the radiator?
What are you referring to when you say "fan bell" (in your first post) and "belt drum" (above)?
Fleet Owner
Joined: Jan 2008
Posts: 26,898
Likes: 3
From: southern md
the i-6 has the single nut spin on types fan if I'm not mistaken -the fan doesn't bolt on per say-it has it's own built on correct? I usually smack em with a cold chisel and a hammer on the edge of the big built on nut to loosen em -and I'm thinking some of em may be a reverse direction-it's late and my memory is bad 
Mountain Pass
Joined: Nov 2004
Posts: 215
Likes: 0
From: nj
fan
nappa sells a set for removing the fan it has a tool that hooks the bolts on the pully so you can hold that and the wrench to spin the fan nut
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Post Fiend
Joined: May 2004
Posts: 11,289
Likes: 6
From: Lakewood, Ohio
the i-6 has the single nut spin on types fan if I'm not mistaken -the fan doesn't bolt on per say-it has it's own built on correct? I usually smack em with a cold chisel and a hammer on the edge of the big built on nut to loosen em -and I'm thinking some of em may be a reverse direction-it's late and my memory is bad
to o.p. put those 4 bolts back in.
you can use a strap wrench on pulley and an open end wrench on nut.
hope you are protecting the radiator with cardboard.
very easy to have wrench slip off into radiator.
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Thread Starter
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Laughing Gas
Joined: Mar 2009
Posts: 1,028
Likes: 0
From: long island
i think i might use an air hammer to shake that nut loose. when i said "fan bell" and "belt drum", i was talking about the pulley. i couldnt think of the name. i really appreciate the help so far.
Fleet Mechanic
Joined: Nov 2011
Posts: 1,823
Likes: 43
From: New York
I've got a '91 4.9 that I want to get the fan & clutch removed from. What size wrench do I need to get that nut loosened? I see a couple references that indicate 40mm, but I'm also finding indications that the 40mm size only applies to '93+ applications.
Reading some more before posting this - looks like mine may be 36mm, yes?
Reading some more before posting this - looks like mine may be 36mm, yes?
Fleet Mechanic
Joined: Nov 2011
Posts: 1,823
Likes: 43
From: New York
Answering my own question, just confirmed with the caliper that it's 36mm. Looks to me like I can get a full size open-end wrench in there rather than one of those thin specialty wrenches. I'll go buy a 36mm wrench if that's the case - anyone know for sure if it'll get in there?
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jordan150
Ford Inline Six, 200, 250, 4.9L / 300
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Dec 19, 2007 02:14 PM
