I actually asked what signs you saw, the rpms you were turning, piston skirt/cyl wall clearance and how you measured the qd...but it only left a ? instead.
Whew! Ummm, 25+ years ago... whew, well, what I remember is the tops of the pistons were deformed and had speckled spots of missing metal.
I do not know what "qd" is.
I can not answer anything else, sorry.