water pump change

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Oct 7, 2003 | 08:06 AM

mrblue01

Thread Starter

Junior User

Joined: Mar 2001

Posts: 66

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From: Westland, MI

water pump change

Hey,

How diffeicult is it to change the water pump on my 90 F150 351w 4x4? I have recently found puddles underneath coming from the small hole in the bottom of the pump. I am going to do it myself, I am just looking for an estimated time it will take me. Any tips would be greatly appreciated as well.

Thanks!

Oct 7, 2003 | 09:49 AM

gatesj

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Joined: Dec 2002

Posts: 1,113

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From: Remsen, NY

I haven't done this but I hear the hardest parts are getting the fasteners loose from the block and getting the fan and clutch off the pump..

Oct 7, 2003 | 11:39 AM

Jack01

Senior User

Joined: Jul 2003

Posts: 299

Likes: 2

From: central valley California

I have change them other than the location of the bolts it is fairly simple. be sure to srape the gasket area very well and while your at it change the thermostat.

Oct 7, 2003 | 06:15 PM

ssap108

Junior User

Joined: Aug 2003

Posts: 58

Likes: 0

From: CA

sometimes water pump bolts get rusty,soak them with penetrating oil and loosen them carefully, its not fun to break off bolts.

Oct 7, 2003 | 06:26 PM

MunsterGarage

Junior User

Joined: Oct 2003

Posts: 89

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From: Central New York

snapped 3 bolts on my 89..........had to break off my timing cover to torch out the studs....if this happens and you dont have a stud remover, screw some nuts on the ends of the studs and weld, or have someone weld the nuts on....then heat up the bolts...............works pretty good.

Oct 8, 2003 | 06:40 AM

mrblue01

Thread Starter

Junior User

Joined: Mar 2001

Posts: 66

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From: Westland, MI

Well, I am half way done... I broke two bolts off. Luckily they both were left sticking out so I could use a pipe wrench to unscrew them after getting the pump off.

Now my question, What thermostat goes in here? I pulled out a 180*, but the parts store gave me a 160* to replace it.

thanks for the tips so far!

Oct 8, 2003 | 05:40 PM

ssap108

Junior User

Joined: Aug 2003

Posts: 58

Likes: 0

From: CA

i personally only use OEM stats on my vehicles.i dont have to guess at temps. they are an exact fit ,and they are much better quality than most aftermarket stats.they only cost maybe $5 more. steve

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Oct 11, 2003 | 11:42 AM

Hit Man X

Lead Driver

Joined: Sep 2002

Posts: 9,519

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From: North Texas

195* is waaaaay to hot for a nonintercooled supercharged vehicle. I'd go with the 160* for your S/C...I run a 180* in my N/A motor.

I had great luck replacing my water pump with a Flow Kooler (30% greater flow) pump...I hosed all the bolts down with PB and let them sit for a while.

Hardest part for me was getting the two acc bolts from the air compressor and power steering pump.