Ok, I still have a cracked manifold and really don't want to take everything appart to replace it just so it can crack again. I tried using the Thermo-Steel stuff, and it worked for a while, but it eventually cracked appart. I even used some fine mesh to strengthen it, it held for a while, but it eventually cracked appart.
After using some high temp red RTV to seal a leak in the Magnaflow catback on my Eclipse (for some reason all but one of the pipe junctions use flanges, the other uses a clamp), I got to thinking. If I could find an RTV sealant that could withstand the 1200+ degree temps of the exhaust in the manifold, I could patch the crack with something flexible that wouldn't crack.
Is there any thing out there that will withstand the high temps of an exhaust manifold and still be flexible. Most stuff I find will dry hard, I think this is why the patches eventually fail.
Permatex has a muffler and tailpipe sealer, but I can't find out if it cures hard or not.
Does anyone know of any other products out there that might work.
After using some high temp red RTV to seal a leak in the Magnaflow catback on my Eclipse (for some reason all but one of the pipe junctions use flanges, the other uses a clamp), I got to thinking. If I could find an RTV sealant that could withstand the 1200+ degree temps of the exhaust in the manifold, I could patch the crack with something flexible that wouldn't crack.
Is there any thing out there that will withstand the high temps of an exhaust manifold and still be flexible. Most stuff I find will dry hard, I think this is why the patches eventually fail.
Permatex has a muffler and tailpipe sealer, but I can't find out if it cures hard or not.
Does anyone know of any other products out there that might work.