My belt mechanism is making a slight knocking sound.

It sounds like there is an issue with the belt tensioner. There are multiple belts on this generation Honda. We would want to isolate the issue to a specific tensioner, idler pulley, or another component (power steering pump, A/C compressor, etc.) on the belt systems before recommending a particular item. Hope you've gotten this issue taken care of in the last year, but if not give us a call or visit us online to schedule an appointment. Long Arm Mechanics 208-343-6996