What is name of this piece on exhaust manifold?
Joined: Sep 2005
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Car: Yes
Engine: Usually
Transmission: Sometimes
Axle/Gears: Behind me somewhere
Re: What is name of this piece on exhaust manifold?
Check valve
A "pneumatic diode ", if you will.
It allows fresh air to go into the exhaust, but prevents exhaust from backing up into the AIR pump.
A "pneumatic diode ", if you will.
It allows fresh air to go into the exhaust, but prevents exhaust from backing up into the AIR pump.
Joined: Dec 2004
Posts: 16,892
Likes: 1,013
From: Mile High Country !!!
Car: 1967 Camaro, 91 z28
Engine: Lb9
Transmission: M20
Axle/Gears: J65 pbr on stock posi 10bolt
Re: What is name of this piece on exhaust manifold?
Thread Starter
Junior Member
Joined: Sep 2007
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Re: What is name of this piece on exhaust manifold?
Thanks Tuned, that is perfect! And after further review, I am going to need the piece that it threads onto. That is what has threads broke off, but the valve has the broken threads in it, impossible to remove.
Joined: Dec 2004
Posts: 16,892
Likes: 1,013
From: Mile High Country !!!
Car: 1967 Camaro, 91 z28
Engine: Lb9
Transmission: M20
Axle/Gears: J65 pbr on stock posi 10bolt
Re: What is name of this piece on exhaust manifold?
I looked up 1990 you might want to double check they should be the same.
https://www.rockauto.com/en/catalog/...tion+pipe,4904
Use a line wrench and pb blaster to help remove the air tubes from the manifold.
https://www.rockauto.com/en/catalog/...tion+pipe,4904
Use a line wrench and pb blaster to help remove the air tubes from the manifold.