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Cat back flange leak

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Old 10-14-2012, 06:27 PM   #1
UNDEAD1153 [OP] UNDEAD1153 is offline
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Unhappy Cat back flange leak

I've been searching forever and can't find an answer. I had some exhaust work done yesterday and had the exhaust cutout that I had kept open taken out completely. Now that it's all going through the muffler, I can tell its not the cutout that was leaking, it's the cat back flange. I had ran a few days with the whole exhaust off from that flame back. The guy at the exhaust shop said that I had a gasket leak. I take it off and the gasket is not there. He said it was spring loaded but I have no spring of any kind. I picked up a donut gasket and threw it on but it's still leaking. Any ideas on what I might be missing or might need to do to fix it? I've lost a noticeable amount of power and it has no sound really, just sounds like air blowing. I'm running a borla xr-1 muffler which is supposed to be pretty deep and fairly loud but I'm getting something more quiet than the TRD exhaust, what I'm guessing stock would sound like.
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Old 10-14-2012, 06:31 PM   #2
With sufficient thrust, pigs fly just fine.
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Take everything apart again, clean the matting surfaces really good, use some copper RTV, and apply a thin layer on the new gasket, and seating surfaces. Then reassemble, and torque bolts to spec.
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Old 10-14-2012, 06:35 PM   #3
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Quote:
Originally Posted by chris4x4 View Post
Take everything apart again, clean the matting surfaces really good, use some copper RTV, and apply a thin layer on the new gasket, and seating surfaces. Then reassemble, and torque bolts to spec.
Will do, thank ya Chris! You and whipper seem to always be the first to help and are usually right well whipper usually shows up to give me a hard time and tell me I'm a stupid kid then offer advice haha
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