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How to fix exhaust V Band Clamp leaks 2002 Jeep Liberty 3.7

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2002 Jeep Liberty 3.7L 4×4 sport. I installed a new passenger side, front, catalytic converter. The problem is a leak at the V Band clamp where the converter and manifold meet. I reused the old band clamp. What is the proper install method and can I reuse the old clamp? Am I missing a gasket? I could tighten it down more but I’m wary of damaging the converter and the manifold. Thank you very much.


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    Normally, a V-clamp should tighten itself without a gasket if the flanges are good. Some V-flanges do have a gasket, and if it’s used you should replace it with a new one.

    Check for any dirt on the flanges.

    You do also have to make sure that the pipes are straight when tightening the clamp.

    If the flanges are slightly damaged and it’s a small leak. You can use an exhaust sealer paste to make it sealed. Example: Permatex 80335 Muffler and Tailpipe Sealer, 3 oz.


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