I have a 1950 Buick Roadmaster with a straight 8 and the exhaust manifold is leaking where it slides into the adjoining manifold, it is leaking and the vehicle is not much fun to drive due to the noise, I realize the they did this to allow for the expansion because the engine is so long. my question is what can I do to remedy the situation and get rid of the leak, the manual says to loosen the nuts the tighten to the specified torque but that dosent seem to work.
Any suggestions would be greatly appreciated