Exhaust leak
Thread Starter
Race Director
Joined: Jul 2000
Posts: 16,496
Likes: 2,381
From: Out Where the Buses Don't Run, Eglin AFB/ Niceville FL
2025 C8 Z06/7/E-Ray of the Year Finalist - Unmodified
2022 Corvette of the Year Finalist -- Modified
2021 C6 of the Year Winner - Modified
2020 C7 of the Year Finalist -- Modified
2020 C6 of the Year Finalist - Modified
Exhaust leak
I need the all knowing help from C3 Tech again. I have an exhaust leak on the left side of my 82. I need to know if there's a way to detect where exactly it's coming from. It's definitely in the engine compartment but I don't know if it's coming from the manifold, the doughnut gasket, or the emissions tubing. The tick is annoying at idle. I don't hear it at speed. I want to get it fixed as it makes the car sound bad. I don't want to have to pull the exhaust manifold unless I have to. I have the skills to fix it, I just want to isolate it first. Thanks.
Le Mans Master
Joined: Feb 2011
Posts: 5,943
Likes: 61
From: Southern NH
on my '81, the flange where it mates to the exhaust pipe broke at the welds. there's no donut gasket on the left side, the manifold exit is shaped like a donut, buts its all one piece. I replaced mine with a set of headers
Le Mans Master
Joined: Mar 2008
Posts: 5,948
Likes: 72
From: Oxford MA-----You just lost the game!!!!
If you take a piece of hose, doesn't really matter what kind, and stick one end in your ear, you will be able to use the other end to isolate exhaust leaks, any kind of weird noises.
Scott
Scott
Thread Starter
Race Director
Joined: Jul 2000
Posts: 16,496
Likes: 2,381
From: Out Where the Buses Don't Run, Eglin AFB/ Niceville FL
2025 C8 Z06/7/E-Ray of the Year Finalist - Unmodified
2022 Corvette of the Year Finalist -- Modified
2021 C6 of the Year Winner - Modified
2020 C7 of the Year Finalist -- Modified
2020 C6 of the Year Finalist - Modified
Thanks for all of the tips. As soon as TS Lee passes out of here I'll put these to the test.
So far not much wind just a steady rain. The worst should come through tonight and tomorrow morning. I really feel bad for the tourists that wanted to spend the last weekend of the summer on our snow white beaches.
So far not much wind just a steady rain. The worst should come through tonight and tomorrow morning. I really feel bad for the tourists that wanted to spend the last weekend of the summer on our snow white beaches.
Burning Brakes
Joined: Mar 2010
Posts: 938
Likes: 15
From: Valdosta Georgia
I had the same issue on my 82, only it was on the passenger side. It turned out to be a split air tube on the inside of the #4 cylinder, split right where the tube met the exhaust manifold. I went with headers (it was a good excuse for me). I used a mechanic's mirror to find it.
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