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New Exhaust Question

Is it normal for a new catback exhaust to drip a little water on startup where the flanges meet up?

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Old 04-13-2013, 09:29 PM   #1 (permalink)
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Default New Exhaust Question

Is it normal for a new catback exhaust to drip a little water on startup where the flanges meet up?
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Old 04-13-2013, 09:56 PM   #2 (permalink)
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I would say that may be indicative of a leak.
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Old 04-13-2013, 10:06 PM   #3 (permalink)
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May want to snug the bolts up a little.
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Old 04-14-2013, 04:37 AM   #4 (permalink)
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That's just it... If I snug them up anymore I'll probably snap something...
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Old 04-14-2013, 04:48 AM   #5 (permalink)
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Are you using a new gasket at each flange?
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Old 04-14-2013, 04:52 AM   #6 (permalink)
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Brand new. It's a new exhaust.
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Old 04-14-2013, 04:59 AM   #7 (permalink)
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Do all of the flanges drip? If they all do I would think they just aren't tightened enough... But then again you feel like you have them on there pretty good. If it is just one it might be a flange that's just a bit off allowing for a leak.
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Old 04-14-2013, 05:06 AM   #8 (permalink)
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Right now it looks like mostly the flanges that connect to the cats and then the upstream side of the x-pipe.
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Old 04-14-2013, 10:52 AM   #9 (permalink)
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Well I went and rechecked the bolts and they all are as tight as they are going to get. I think the max torque on these M10 1.25 bolts is around 70ft-lbs... well they are at least 65ft-lbs. Then I soap bubble tested all the joints and found no bubbles (bonus I would think that as the exhaust heated up, the metal would expand and seal better). Like I said before, the slight dripping only happens on cold startup, so I'm going to call it good unless someone has a good reason not to.

Thanks for all the replies!



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