Service

摘要

Q:I have a 2007 Ducati ST3, which I bought new and was always maintained as required. At only 35,000 kilometers, I noticed a tapping noise under light acceleration, which I knew didn't come from the valve train. Long story short, I took it to the dealership to get them to listen to it; they had to take it apart to find the rod bearings totally done. It was then fixed there and I got it back after two months at the end of the riding season. Rode it the next season and it was okay, no noise, but after only 4,000 kilometers the rod bearings are knocking again under light acceleration, and I know it needs to come apart again. Is there a fundamental problem with the oil supply to the crank journal or crankpin to cause the rod bearings to fail so quickly? The dealership couldn't give me an answer why the rod bearings failed.