Bow Tie Omega:
...I have shattered the piston rings in the #2 and #1 cylinders in the last 7 running hours, #3 were still intact. Both times, I have been on the stretch of river between Laughlin and Needles...Well...since I don't know anything about those rings, all I can suggest is staying away from the area between Laughlin & Needles...
Please let me know if I can be of any further assistance...