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4.9L can’t align new water pump

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Old May 23, 2025 | 11:25 AM
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Default 4.9L can’t align new water pump

I posted in the drivetrain thread, but thought it might get more responses here.

I’m trying to fit a new water pump on my 1992 4.9L F150. The brass pipe that attaches to the heater line is getting in the way, getting blocked by this housing surrounding the alternator. I can’t get the bolt holes to line up. Has anyone run into this problem?
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Old May 23, 2025 | 03:44 PM
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Can you possibly turn that brass pipe that is in the way? I remember having to turn a pipe when installing the water pump in my '88 with the 4.9 engine.
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Old May 23, 2025 | 04:11 PM
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Originally Posted by RagnarRagnarsson
I posted in the drivetrain thread, but thought it might get more responses here.

I’m trying to fit a new water pump on my 1992 4.9L F150. The brass pipe that attaches to the heater line is getting in the way, getting blocked by this housing surrounding the alternator. I can’t get the bolt holes to line up. Has anyone run into this problem?
I have had to bend the pipe to fit but never had a problem with any bolts not lining up.You may want to try another brand pump.

Last edited by raski; May 23, 2025 at 04:21 PM.
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Old May 23, 2025 | 06:28 PM
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Originally Posted by 88xlt
Can you possibly turn that brass pipe that is in the way? I remember having to turn a pipe when installing the water pump in my '88 with the 4.9 engine.
Would that wreck the seal? How is the heater pipe sealed? I already wrecked one replacement pump trying to bend and turn the pipe. Just in case i tried it out, and it did leak after i beat it up too much.
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Old May 23, 2025 | 06:29 PM
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Originally Posted by raski
I have had to bend the pipe to fit but never had a problem with any bolts not lining up.You may want to try another brand pump.
What did you use to bend it?
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Old May 24, 2025 | 01:35 AM
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Originally Posted by RagnarRagnarsson
Would that wreck the seal? How is the heater pipe sealed? I already wrecked one replacement pump trying to bend and turn the pipe. Just in case i tried it out, and it did leak after i beat it up too much.
By just turning the pipe it certainly could break the seal and cause a leak. I was worried my new water pump might leak but I got lucky and mine didn't.. I never had to bend my pipe, just turn it.

I just grabbed the pump tightly and turned it by hand.
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Old May 24, 2025 | 01:37 AM
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Originally Posted by RagnarRagnarsson
What did you use to bend it?
I seem to remember putting something like a very large screw driver in the pipe and applying pressure to bend it.
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Old May 24, 2025 | 09:34 AM
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how much is clearance requiring? 1 inch? 2 inches? cut it off and flare the remaining stub, use a new hose (might need one anyway)
Otherwise you can buy the right waterpump you may be using one from a 94+ with a different bracket and fan
Youll know if you have th right year range if your fan clutch will thread on (if original)


Last edited by AuroraGirlFromMars; May 25, 2025 at 11:21 PM.
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Old May 24, 2025 | 09:36 AM
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[img alt="my 1996 came from autozone in like 2016 or 17 or 18
And it wasnt pricy or anything(the pulley runs out of round.. dont recommend) "]https://cimg3.ibsrv.net/gimg/www.f150forum.com-vbulletin/1349x1095/image_174e687cbfdefd401fe77bd289b5da45ac86402a.png[/img]
my 1996 came from autozone in like 2016 or 17 or 18 And it wasnt pricy or anything(the pulley runs out of round.. dont recommend)
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Old May 25, 2025 | 04:40 AM
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You could also try a remanufactured pump. Atleast you know that it once fit and worked before being remanufactured.
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