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Old 08-28-2013, 06:31 AM   #1
aberg83
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Leak at floor drains

I just had a new exhaust installed. Since installation I've been noticing some black fluid on my driveway immediately below the round back seat floor drains. If I touch the drains there is black fluid on them. I also notice a burning smell sometimes after driving the car. I assumed it was just burn off from the new exhaust. Could heat from the exhaust be melting my undercoating? Anybody experienced this before? Anything I can spray there that it heat tolerant?
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Old 08-28-2013, 08:29 AM   #2
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you may be missing the required heat shields. it may not have come with them.
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Old 08-28-2013, 09:12 AM   #3
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Think the heat shields are there. The exhaust is not stock and is hanging a little lower than stock so heat may be radiating out and clearing the shields.
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Old 08-28-2013, 09:38 AM   #4
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Can you expand a little on this black fluid? Does it harden like tar or is it some kind of water and carbon mixture.
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Old 08-28-2013, 09:41 AM   #5
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It doesn't harden. I can easily wipe the drips off my driveway. It isn't very thick. Almost looks like oil but I know it can't be due to where the drips are occurring. It really looks to be dripping from the back seat floor drains. I'll take a picture later today.
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Old 08-28-2013, 01:07 PM   #6
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Here's some pics. And yes the condition of the drains is another issue altogether.




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Old 08-28-2013, 01:41 PM   #7
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It's probably just moisture + carbon coming from where the two sections of exhaust meet. I get some drips from my vbands once and a while too.
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Old 08-28-2013, 06:22 PM   #8
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I dunno. Pretty sure it's something melting because I often smell a burning smell.
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Old 08-28-2013, 07:48 PM   #9
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Also, how are people patching these plugs? Cut out and weld in sheet metal?
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