Rice Over Wheat
15+ Year Contributor
- 1,959
- 5
- Jan 24, 2004
-
Winter Park,
Florida
I've been battling an exhaust leak from my O2 housing to dp seal and I can't fully eliminate it. The fitment is fine, the surfaces appear machined well, and I can fully torque the bolts down, but still some exhaust gas leaks through. I've tried standard metal layer composite gaskets but I blow them as the composite just burns away, leaving the metal layers and a small gap where the composite used to be. RTV can't hold up to the heat. I'm running bare no gasket now like many people do, but that's not getting me a perfect seal.
I've searched many vendors and I can't find any kind of crush gasket, like preferably a copper one since copper's melting point is 1083*C. I've considering a 5/16" universal steel flange, but I think that will just cause more problems because then I'll have two mating surfaces instead of one to worry about. Welding them together is out of the question...I really don't want to have to drop my O2 housing to get my exhaust off.
I'm using a Punishment O2 and a Megan dp, 2.5" at the flanges. How are you guys getting a good 100% seal at that joint? I'm open to any ideas because I'm stuck.
I've searched many vendors and I can't find any kind of crush gasket, like preferably a copper one since copper's melting point is 1083*C. I've considering a 5/16" universal steel flange, but I think that will just cause more problems because then I'll have two mating surfaces instead of one to worry about. Welding them together is out of the question...I really don't want to have to drop my O2 housing to get my exhaust off.
I'm using a Punishment O2 and a Megan dp, 2.5" at the flanges. How are you guys getting a good 100% seal at that joint? I'm open to any ideas because I'm stuck.