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Correct orientation of OEM intake manifold gasket? 5S-FE 2.2 Liter

Old Apr 24, 2020 | 04:37 PM
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PACNOR-RUNNER's Avatar
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Default Correct orientation of OEM intake manifold gasket? 5S-FE 2.2 Liter

One side has very small ridge encircling each hole. As a result the other side has a dip encircling each hole. Which side faces the manifold? Does it matter?
 
Old May 30, 2023 | 02:41 AM
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I just installed a fantastic Mahle gasket on my '98 Celica and it occured to me that the embossing is mostly a structural addition to prevent sagging in the middle since on the 5S-FE it hangs by the ends until pressed. I chose to place the peaks against the manifold. The factory service manual has no instruction regarding this.
 

Last edited by CardiganB; May 30, 2023 at 02:55 AM.
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