If you look at the PET catalog on illustration #301-00, pt.#8, "clutch housing", and yes, I normally call it the bellhousing, but since I specified the drawing, which calls it the "clutch housing", I did not want to mix things up.
I can look at the back of my engine,from the top, where the...bellhousing meets the engine, and next to where the pulse sender mounts to the bellhousing, there is, at least on my car, an open, square or slightly rectangular hole that I can observe the clutch plate or pressure plate rotating. Seems that should have some sort of cover or rubber plug over it.
Just wondering if anyone has noticed this.