Exhaust Leak, Slight smell of fumes in the cabin Options

[Britain Smith]

I went through the painful process of replacing both rear wheel bearings and CV joints this last weekend and to do this I decided to remove the heat exchangers. It was actually a lot less painful to remove the heat exchangers that I thought it would be, however I now think I may have an exhaust leak. I was surprised that when I removed my heat exchangers, there were no copper gaskets or anything. They did have copper exhaust nuts however, which probably is the reason they came off so easily.

So, should I order up some copper exhaust gaskets and install them with some new copper exhaust nuts? Do orignal 1.7L motors supposed to have the copper gaskets there? What does and exhaust leak on these motors sound like exactly? If I have one, it is very slight cause I can hear something but it is hard to distinguish over the valve ticking.

Any assistance?

-Britain