exhaust leak at header
exhaust leak at header Having a problem with an exhaust leak at the header on my c5. I have mls gaskets on there now and its leaking at the bottom portion of all 4 ports. I purchased new ones and they arent sealing either, so the next idea is to put some copper rtv on there. I may also loosen where it slips into the x pipe and see if it will slide in a little more maybe causing flange to sit flatter against the head. Anyone else ever had this problem because its really starting to **** me off.
the only time i've had a problem similar to that is because something was in the way of the primaries not letting the header swing over and sit where it needs to. this might be your xpipe or exhaust or whatever..i dunno, not there to see it.
I had the same problem when I installed my headers, they were leaking very bad from the gasket at the head. I was using the revised gm 13mm bolts and I don't know if it was them or the flange thickness difference from the stock manifolds but they were bottoming out without fully tightening the header. I put a washer and lock washer on each bolt to shorten them up a little and haven't had a problem since.
I had the same problem when I installed my headers, they were leaking very bad from the gasket at the head. I was using the revised gm 13mm bolts and I don't know if it was them or the flange thickness difference from the stock manifolds but they were bottoming out without fully tightening the header. I put a washer and lock washer on each bolt to shorten them up a little and haven't had a problem since.
