I have a '73 std beetle. Two small holes have appeared on the bottom of the heater box pipe just at the point it enters the muffler. One hole is maybe
3/16 diameter and the other is half that size. If the flange part on the muffler were straightened (instead of flared), both holes would be 90% covered. I have poked all around the pipe with a small screwdriver and have determined the rest of the metel to be acceptable in that area. The pipes are held together with an asbestos ring (loose fit). a metal washer, and a clamp. I believe this to be the source of exhaust smell when I open the heater vent. Is there a simple easy way to quickly seal this connection? I wondered if a thin metal might be squeezed into place over the holes and clamped?Bob