C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

1990 Exhaust Leak

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Old Mar 12, 2014 | 05:05 PM
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MrStiggy
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Default 1990 Exhaust Leak

I have a '90 Corvette with and exhaust leak that apparently is a little more complicated than expected. I've been told the air tube is welded to the manifold and air tube has a crack where the weld is. Problem is, I'm having trouble just finding this air tube and and exhaust manifold (passenger side) I've found complete systems that have everything (which are obviously very expensive) but not the individual parts that I need.

Does anyone know where I can find just an air tube and passenger exhaust manifold? Thanks!

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Old Mar 12, 2014 | 06:06 PM
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I'm not sure about the availability of the EGR pipe, since I abandoned my EGR system years ago, but can you have your existing one repaired. A little welding could probably make it serviceable.
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Old Mar 12, 2014 | 06:31 PM
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IIRC the egr tube is attached to the manifold in the same mannor as it does tto the intake. The gasket is what usaly gives way. There are pleanty of manifold out there and probley the tubes also. Check with See4parts in the parts section. He is a super guy and cannot beat his prices or sercice
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Old Mar 12, 2014 | 06:33 PM
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Originally Posted by TA
I'm not sure about the availability of the EGR pipe, since I abandoned my EGR system years ago, but can you have your existing one repaired. A little welding could probably make it serviceable.
I was told that was an option, but that it likely wouldn't last. I was told I was better off buying a new one and having it installed.

And so the proper name for the part is an "EGR pipe?" I was wondering, I figured "air tube" likely wasn't the proper name.
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Old Mar 12, 2014 | 06:33 PM
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Originally Posted by hooked073
IIRC the egr tube is attached to the manifold in the same mannor as it does tto the intake. The gasket is what usaly gives way. There are pleanty of manifold out there and probley the tubes also. Check with See4parts in the parts section. He is a super guy and cannot beat his prices or sercice
Thanks! I'll check that out.
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