Currently the joining of my inlet pipe and muffler is above the hood and it leaks, leaving exhaust residue on the hood. When I purchased the tractor, there was no clamp there. Thinking a clamp would stop the exhaust leak, I added one......to no avail. It still leaks. Having seen numerous make do repairs on this tractor from a previous owner, I suspect the muffler was changed out sometime in the last 8 years and fitted to a corroded inlet pipe only partially or that the inlet pipe is corroded through.Shouldn't this joint be under the hood?