IndecisiveDude

Is it normal for the RDX to sound like a loud sewing machine? I have a serious buzz/whine from my engine. I've heard a similar noise from other Hondas and always associated the with Honda transmissions, but I have it in park, neutral or when driving. I took the vehicle to the dealership and both the tech and service manger said is was a normal noise due to the timing chain. Maybe I'm just paranoid but I've owned a lot of cars and never had one make a noise quite like this one.

Thanks for any input.