Did you run low on oil?? Glad you caught it in time. I ruined a main cap recently on my TR6 by not lining it up right...luckily not to hard to fix, line bore the journals...it's only money right? be careful with the dremel as you don't want any scratches or gouges perpendicular to the length of the rod. Any file or scratches are potential breakage points. This rod is from a Triumph TR6 (car), but shows, what you don't want to see, stock rod. You don't have casting marks like these rods, but all those lines are potential fracture spots. after sanding. BTW- use assembly lube on the bearings, or STP oil treatment.