NoPistons -Mazda Rx7 & Rx8 Rotary Forum

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-   -   Exhaust manifold removal (https://www.nopistons.com/2nd-generation-specific-17/exhaust-manifold-removal-3988/)

Rotorboy317 07-23-2002 01:30 PM

Is it physically possible to remove the exhaust manifold without removing the engine? Thinking about replacing the gasket there, and wanna know how much work its going to take.



thanks

-dave

ILUVMY88CABRIO 07-23-2002 01:34 PM

Yep! it's held on by 4 nuts (14mm I think).

13BAce 07-23-2002 02:31 PM


Originally Posted by Rotorboy317' date='Jul 23 2002, 04:30 PM
Is it physically possible to remove the exhaust manifold without removing the engine? Thinking about replacing the gasket there, and wanna know how much work its going to take.



thanks

-dave

You'll have to remove the heat shield to get to the 2 bottom nuts. Removing both the air control valve and intake tube will give you alot more room to work with.

Rotorboy317 07-23-2002 04:38 PM

Thanks guys, that helps alot.

The reason I'm asking is because I think that there may be a problem with my manifold, either that or the gasket there is gone.



I re-installed the exhaust the other night, and for some reason it barely idles now. Its all straight through, too, thats whats confusing. It idles strong @ 1k without exhaust (manifold back), but once I put it back on it struggles.



Oh, and I've either got 2 defective AFMs or its not the problem.



Thanks again!

-dave


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