exhaust manifold replacement HELP?
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exhaust manifold replacement HELP?
I have a 92 civic hb and I am replacing the exhaust manifold and the gasket.
The new manifold I have has an o2 sensor on it but the one on my car doesnt?
do I need to replace the self locking nuts or can i reuse them?
The new manifold I have has an o2 sensor on it but the one on my car doesnt?
do I need to replace the self locking nuts or can i reuse them?
Honda-Tech Member
Joined: Oct 2010
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Re: exhaust manifold replacement HELP?
A spark plug has the same thread size as an O2 sensor.
And you can reuse the MLS sort of style gaskets for the exhaust, and the nuts can be reused. Just make sure you soak them with PB Blaster or your choice of penetrating oil. The nuts/bolts to the downpipe from the manifold tend to get very rusty and stubborn.
If you're taking it off, I suggest putting a header or at least the 4-2-1 style manifold off the EX/SI on. You won't gain much top end, but mid range is a little better.
And you can reuse the MLS sort of style gaskets for the exhaust, and the nuts can be reused. Just make sure you soak them with PB Blaster or your choice of penetrating oil. The nuts/bolts to the downpipe from the manifold tend to get very rusty and stubborn.
If you're taking it off, I suggest putting a header or at least the 4-2-1 style manifold off the EX/SI on. You won't gain much top end, but mid range is a little better.
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