After I got my SOR stainless EGR J/Pipe all installed to the best of my ability and I was done with it, the pipe most definitely did not have a hermetically airtight perfect seal inside the EGR cooler. I think I never did get the furrel situation perfected. I know the big cooler nut didn’t clamp down tight on the furrel and lock the pipe in place.
Even with that less than stellar interface at the cooler junction, I never heard a EGR leak again or saw evidence on the pipe (exhaust soot) that there was any visible leaking.
My conclusion- the new J-pipe to cooler connection doesn’t have to be perfect for the contraption to work as desired.
The ultra annoying exhaust leak sound sputtering from the old EGR pipe is primarily caused at the flange interface at the manifold with the original lame flanged pipe.
Even with that less than stellar interface at the cooler junction, I never heard a EGR leak again or saw evidence on the pipe (exhaust soot) that there was any visible leaking.
My conclusion- the new J-pipe to cooler connection doesn’t have to be perfect for the contraption to work as desired.
The ultra annoying exhaust leak sound sputtering from the old EGR pipe is primarily caused at the flange interface at the manifold with the original lame flanged pipe.