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Thread: Exhaust Woes

  1. #1
    Davsinq's Avatar
    Reverse Gear

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    Mar 2013
    Portree, Isle of Skye, West Coast Scotland

    Exhaust Woes

    Hi All, I have a BFB engine in a 1.8t Quattro that's just had a new turbo, cat fitted. Over the last few days I hear a Leak on acceleration from the exhaust. If I rev the engine slowly there is no noise but if I rev it hard there sounds like a leak in the exhaust. The noise goes away when the engine stops rocking with the power at about 4k and isn't there when the revs drop. I thought it was a leak at the flexi pipe but it sounds further up and if I get someone to rev it I can't feel any leak at any of the joins. Any Ideas anyone on what to check next?
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  3. #2
    Audi Doodah's Avatar
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    Sep 2012
    Try sticking a rag over the end of the exhaust while it's running. This should highlight a leak. Careful not to burn yourself!
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