Generator exhaust

[j.lawrence]

I am new to this forum, and the new owner of a 1985 PT 36. My coach is in great condition with only a few minor things that need work.
The previous owner had the generator serviced just prior to the sale. The shop removed it from the tray and installed new seals and gaskets. After getting home with the coach, I discovered that a portion of the generator's exhaust is missing.
I have the original Perkins/ Kohler unit. Everything to the rear of the slide out tray is in a fixed position. From the manifold on the engine, the exhaust goes to the rear about twelve inches, turns down about twelve inches, and then turns to the rear for about twelve more inches where there is a male threaded flange. Then nothing until a slightly flared part bolted to a portion of the frame. Past this to the rear is the rest of the pipe and muffler. When the tray is in the out position there are about twenty four inches between these two parts and less than two inches when the tray is closed. I initially thought a portion of pipe was meant to slide into the flared part to the rear of the tray, but the pipe turns up and over the steering tie rod about ten inches to the rear of the flared part.
I would greatly appreciate any help and/or direction to a thread on the forum where this might have already been discussed.
Thanks!