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Old 01-30-2008, 02:47 PM   #1
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I was just poking around the engine some checking things out, and I noticed that the underside of my FM heat shield has black soot on it, same color etc as the exhaust pipe. Car runs fine getting 4 to 5 pounds of boost. Is this normal or is it indicating an exhaust leak? Thanks
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Old 01-30-2008, 02:53 PM   #2
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Exhaust leak. Or it's burning oil (smoking).
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Old 01-30-2008, 02:53 PM   #3
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exhaust leak. im sure you hear a ticking noise in that area at idle?
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Old 01-30-2008, 02:57 PM   #4
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why would it tick if it was an exhaust leak?
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Old 01-30-2008, 02:59 PM   #5
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cause that's the noise that the exhaust will make when it escapes during exhaust pulses.
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Old 01-30-2008, 03:08 PM   #6
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doesnt burn oil leaks some but not burns. I just listened and I think I may hear a leak. Ill tighten everything up this weekend. I never have since I installed the Greddy 2 years ago.
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Old 01-30-2008, 04:06 PM   #7
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Take a look for a sheared bolt/stud on the the turbo->manifold flange. Don't just randomly go tighten stuff up, you might just end up with a fucked up manifold.
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Old 01-30-2008, 04:59 PM   #8
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Quote:
Originally Posted by jayc72 View Post
Take a look for a sheared bolt/stud on the the turbo->manifold flange. Don't just randomly go tighten stuff up, you might just end up with a fucked up manifold.
Thanks will do. Im also not a gorilla when it comes to tightening, havent broken a bolt in a long time
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Old 01-31-2008, 07:17 PM   #9
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Found it. Very obvious once I took the heat shield off and got a face full of air. The downpipe to turbo was loose. Thanks for the help
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