Water Pump Puked!
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Senior User
Joined: Apr 2008
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From: Roanoke, TX
Water Pump Puked!
My water pump puked, or at least I think it was the pump. Coolant reservoir tank is empty and coolant was running down the front of the block. The thing that worries me is that the fan and belt slung something dark all over the front of the engine, kind of looks like oil but I don't think it is. It almost looks like some "stop leak" but I never used it and have changed the coolant and pump since I bought the truck. Any ideas on the mysterious brown stuff?
Fortunately, I got a pump with a "lifetime warranty" so I just have the pain of changing the pump. I will probably rent the fan clutch tool, but if I were to buy one, does anyone know what size the nut is?
I think I just threw in the thermostat that the book called for, but is there a better choice?
Is there any "while I'm at it... I might as well..." while I have the pump off?
Fortunately, I got a pump with a "lifetime warranty" so I just have the pain of changing the pump. I will probably rent the fan clutch tool, but if I were to buy one, does anyone know what size the nut is?
I think I just threw in the thermostat that the book called for, but is there a better choice?
Is there any "while I'm at it... I might as well..." while I have the pump off?
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Joined: Nov 2004
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From: Lancaster County PA
Many put in a 203 degree thermostat to bring the engine operating pressure up a little bit. If you search 203 degree thermostat, I am sure you'll find several threads with all the info you need. I believe it may require a different housing. I did the mod several years ago. Bought the stuff online for a very reasonable price. Something like $30 for the new neck and 'stat, if I recall.
My water pump quit on me a couple of months ago. I had to bite it and let my garage replace it as I don't have a garage nor the time at this time of year to do it myself. It was cold outside when it happened, and I am past the age where I am willing to do that kind of stuff outdoors freezing my fingers off.
My water pump quit on me a couple of months ago. I had to bite it and let my garage replace it as I don't have a garage nor the time at this time of year to do it myself. It was cold outside when it happened, and I am past the age where I am willing to do that kind of stuff outdoors freezing my fingers off.
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Joined: Apr 2008
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From: Roanoke, TX
It was, for sure, pump failure.
Which 203* thermostat do I need to get?
I don't remember if I need to use any sealant on the mating surface. If so what to use?
One last thing, for now, what is the sensor on the top of the pump. I stripped it trying to remove it so will have to get a new one.
Which 203* thermostat do I need to get?
I don't remember if I need to use any sealant on the mating surface. If so what to use?
One last thing, for now, what is the sensor on the top of the pump. I stripped it trying to remove it so will have to get a new one.
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Joined: Feb 2009
Posts: 8,773
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From: Texas Coast
The new pump should come with some sealant. Make sure that the motor boss fit side is cleaned of material and has no corrosion. Then with the new pump put some of the sealant in the gasket channel, put it at several locations at every cross gasket section and some on the top long gasket curved area. Enough to hold the gasket in place while you stab it. You should not need more sealant if there is no corrosion on the moter seal side. I used a long straight pry bar and a couple of rapid hits on the right hand side of the nut to bust it loose. It takes about 3 hits. The shroud is a pain. See my post on the radiator shroud pull its the same deal just about except the radiator stays and the pump comes out. Cover your raditor to ensure that you dont poke a hole in it if you drop the fan and the clutch. New pump will have a different neck on it.
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Senior User
Joined: Apr 2008
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From: Roanoke, TX
The new pump should come with some sealant. Make sure that the motor boss fit side is cleaned of material and has no corrosion. Then with the new pump put some of the sealant in the gasket channel, put it at several locations at every cross gasket section and some on the top long gasket curved area. Enough to hold the gasket in place while you stab it. You should not need more sealant if there is no corrosion on the moter seal side. I used a long straight pry bar and a couple of rapid hits on the right hand side of the nut to bust it loose. It takes about 3 hits. The shroud is a pain. See my post on the radiator shroud pull its the same deal just about except the radiator stays and the pump comes out. Cover your raditor to ensure that you dont poke a hole in it if you drop the fan and the clutch. New pump will have a different neck on it.
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Joined: Jul 2005
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From: Lake Worth, Fla.
I'm not sure what size the nut is, but the easiest way to get it off and back on is with eight air chisel. Just a couple of hits, with the air chisel, and it will come right off. When you do it take the fan shroud and fan to gather. It's a lot easier.
Post Fiend
Joined: Feb 2009
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From: Texas Coast
Dont use a air chisle to put it back on you can use some large channel locks or just snug it up some the natural rotation will help to tighten it over time.
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From: Lake Worth, Fla.
Rocky
It just needs a couple taps, going back on. Don't go crazy, centrifugal force will tighten it because I believe it is reversed threat. This is to the original person who started the threat. Thank you very much.
It just needs a couple taps, going back on. Don't go crazy, centrifugal force will tighten it because I believe it is reversed threat. This is to the original person who started the threat. Thank you very much.
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Post Fiend
Joined: Feb 2009
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From: Texas Coast
ditto
FOREIGN GURU
Joined: Jul 2006
Posts: 7,655
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From: Celaya, Gto. MX
pretty hard to get a torque wrench on it though. I just tighten it a much as I can pull the wrenches
Who understand the ford engineers
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Joined: Apr 2008
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From: Roanoke, TX
Thanks for the suggestions. I got the fan off no trouble. I Used the tool kit I rented from O'Reilly's. I don't remember the direction of the threads. Now I'm looking for suggestions for sealant for the gasket.
Also. I can't remember the brand of coolant treatment I got at the International dealer, but O'Reilly's sells Wix cool, will that work?
Also. I can't remember the brand of coolant treatment I got at the International dealer, but O'Reilly's sells Wix cool, will that work?
Post Fiend
Joined: Feb 2009
Posts: 8,773
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From: Texas Coast
Thread Starter
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Senior User
Joined: Apr 2008
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From: Roanoke, TX
Got everything tightened up this afternoon. No leaks. I used a 205* thermostat. Looked for a 203* but O'Reilly's didn't list a 203*, just a 205*. I've never seen it run that hot, right in the middle of the "Normal." It didn't even get that hot when the pump failed. I couldn't tell any "seat of the pants" increase in power like some of the 203* threads mention.
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