2 bolt LS6 manifold leaking?
08-29-2011, 10:00 AM
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2 bolt LS6 manifold leaking? I'm looking for some advice on my twin turbo CTS-V hot side setup.
Lately I have been hearing what I think is an exhaust leak but after pulling my manifolds off I cant find any signs of a leak. All the gaskets look to be holding up and there is no black soot anywhere on the flange.
I have read on the forums that a 2 bolt style manifolds doesn't provide enough clamping force and will eventually leak..... but like I mentioned earlier, no signs of leaking. My car does have a mild cam in it, maybe I am mistaking valve train "clatter" for an exhaust leak.
What do you guys think, should i weld a 2.5" V band flange to be safe? Or am I imagining the exhaust leak and modifying my setup for a V band would be a waste of my time.
Lately I have been hearing what I think is an exhaust leak but after pulling my manifolds off I cant find any signs of a leak. All the gaskets look to be holding up and there is no black soot anywhere on the flange.
I have read on the forums that a 2 bolt style manifolds doesn't provide enough clamping force and will eventually leak..... but like I mentioned earlier, no signs of leaking. My car does have a mild cam in it, maybe I am mistaking valve train "clatter" for an exhaust leak.
What do you guys think, should i weld a 2.5" V band flange to be safe? Or am I imagining the exhaust leak and modifying my setup for a V band would be a waste of my time.
