Timing Belt Replacement

The purpose of a timing belt is to provide a quiet, flexible connection between the camshaft and crankshaft to keep the valves opening and closing in phase with the movement of the pistons.

Timing belts are used in two types of engines designated "interference" and "non-interference". If the timing belt breaks on a non-interference design, there is enough clearance between the pistons and valves to prevent damaging contact. An interference design does not have sufficient clearance between those parts and engine damage would result from a broken timing belt.  Most manufacturers recommend replacement at 60,000-mile intervals. Please find out your exact engine model and refer the repair manual or service guide on timing belt change recommended intervals. Some cars do not have timing belts, but they have equipped with timing chains. Timing Chains do not break and are guaranteed for the life time of the car. So make sure you indeed have a timing belt on your car. Breakage is not the only reason to replace your timing belt. Looseness and wear will allow the timing belt to slip and change valve timing resulting in very poor performance, a no-start condition, or engine damage.


Timing Belt Replacement is generic procedure , but each car has its own details on how to do it. Some times parts supplier sell entire Timing Belt "Kits" that consists of all the belts, water pump , thermostat , tensioners and gasket. It will be a great DIY and would bring your engine to great condition. So research a bit first. find out the exact procedure for the replacement from the repair guide or service manual and understand all the steps involved , then decide on doing it.