Has anyone had any experiences with copper header gaskets? I had a slight header leak on one side. I replaced the old Hooker paper/fiber gasket with a copper gasket. I torqued the &*#! out of the bolts, but now I have a bigger leak. This is at the flange/heads. Do they need to get hot and retorque them afterwards? These are 6901's. Seth
I have the copper exhaust gaskets on my stallion. Sounds like you crushed the gasket. Once crushed, they are junk and need to be replaced.They need to be snugged, and rechecked often, but over tightening ruins them. Dan
I've got one on my old 84 pickup. It was bad about blowing the gasket about every six months. Put it on that side and it's been there a couple of years now, got to get around to replacing the other side one of these days. I just tightened it up normally, nothing extra.