The Greenfield Fire Territory participates in the Hancock County Technical Rescue Team. The Team was created to pool the resources of the Greenfield Fire Territory and the Sugar Creek Township Fire Department to enhance the response to technical rescue situations. The Greenfield Fire Territory is the busiest fire department in Hancock County, responding to more than 3400 emergency calls annually. Approximately 80% of those calls are emergency medical responses.
The US service manual states that the timing belt should be replaced at 72 months (6 years) or 90,000 miles. The vast majority of NSXs hit 6 years well before they are anywhere near 90k miles so many owners are wondering if they really need to change the belt at 6 years.
Read your owner's manual. Severe engine damage will occur if the belt breaks. Don't have an owner's manual, change it at 80,000 miles. Also replace the water pump at the same time as the belt. Answer Most new belts are good for about 90,000 miles. Older Civics should be changed out at 60,000 miles with the new and improved belts now being produced. Make sure to replace the water pump at the same time as well.