Water pump: O-ring and gasket or just o-ring?

Technical info on the Pontiac Vibe and Toyota Matrix including do-it-yourself info
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Averjoe
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Joined: Fri Sep 03, 2021 12:00 pm

Water pump: O-ring and gasket or just o-ring?

Post by Averjoe » Sun Sep 12, 2021 3:22 pm

I have a 2007 Vibe that I need to replace the water pump on. I've watched several videos on the process, but I am confused because in about half the videos, they used the o-ring and a gasket, but in the others they only used the o-ring alone with no other gasket or sealant. So, which is correct? Does it matter? Is there some advantage to doing it one way or the other?

zbyers
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Re: Water pump: O-ring and gasket or just o-ring?

Post by zbyers » Mon Sep 13, 2021 2:20 am

I have not replaced it on a 1ZZ, but I am pretty sure it's just an o-ring
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andrewclaus
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Re: Water pump: O-ring and gasket or just o-ring?

Post by andrewclaus » Mon Sep 13, 2021 4:45 am

I just checked on the Toyota parts website and there's only on O-ring listed.

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cptnsolo77
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Re: Water pump: O-ring and gasket or just o-ring?

Post by cptnsolo77 » Mon Sep 13, 2021 5:58 pm

I replaced my 3 years ago and I dont recall a gasket. Just O ring.
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joatmon
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Re: Water pump: O-ring and gasket or just o-ring?

Post by joatmon » Tue Sep 14, 2021 7:46 am

The 03 Matrix service manual only mentions an O ring, no gasket
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03 Toyota 1ZZ water pump replacement procedure
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