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Unread 04-20-2013, 10:57 AM   #1
freeman2692
Registered User
 
Join Date: Apr 2013
Location: wildwood crest, New Jersey
Posts: 4
exhaust leak

hey, everyone
I think I have a small exhaust leak was wondering whats the best way to fix it and also does it have any major effect to having it other then the sound
Thanks for the help, Josh

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Unread 04-20-2013, 03:48 PM   #2
NonRubicon
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1990 YJ Wrangler 
 
Join Date: Nov 2009
Location: The southern armpit of California
Posts: 2,087
An exhaust leak that occurs upstream of an O2 sensor will produce a false O2 reading and mess with the fuel delivery. If carbureted and not using an O2 sensor then it won't have too much effect on fuel delivery, but maybe a little on backpressure and low end torque.

Cast iron exhaust manifolds are tricky to weld up properly and probably just easier to replace because cracks usually end up warping the manifold. Stainless steel can be welded if you know what you are doing.
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Unread 04-20-2013, 04:56 PM   #3
Chrisnvegas
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1992 YJ Wrangler 
 
Join Date: Dec 2012
Location: Las Vegas, Nv
Posts: 1,135
Fill in your profile. We don't know if your Jeep is a four banger or a six.

Six bangers have a defective exhaust manifold. Mine just cracked while at the dunes a few weeks ago. I could weld it but it would just crack somewhere else. They sell a replacement with expansion joints for around a hundred bucks or so.

If you have a four banger, I'm sure other people know about them.
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Unread 04-22-2013, 10:31 AM   #4
Flajeeper1
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1987 YJ Wrangler 
 
Join Date: Oct 2009
Location: Lakeland, FL
Posts: 726
Let's start with where the exhaust leak is. Exhaust manifold to engine, downpipe connection to the exhaust manifold?
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