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.
It needs to be done by 7 years or by 105K miles which ever comes earlier. If you do not do it, there is a high chance that timing belt could break which could lead to major engine damage(Interference Engine). Also, if you live in extreme climate or used it to tow or drive or drove in rough terrain, it should be done even earlier. Along with timing belt, hydraulic timing belt actuator, camshaft belt tensioner, camshaft belt Idler,also get engine mounts, water pump and drive belts replaced. Sign in to reply Sign in to Answer