Well...well...well. Seems I made a rookie mistake when I rebuilt my OS105 last time. While I was installing the wrist pin retainers, I damages one of them (bent it a little) and caused it to not seat 100% correctly. The result was the retainer coming out and getting into the piston liner...not a good day...LOL. It did a LOT of damage, and resulted in a pretty large repair bill.
I knew I should have changed the retainer out, but I didn`t, and my engine payed the price. Live and learn, I guess. I have the parts ordered, and it shouldn`t be long before my engine it back to normal.