Colchin Automotive and Diesel

With automotive engines as with many aspects of daily life, timing is critical. One vehicle component often overlooked by customers during routine maintenance is the engine timing belt. If it fails, the engine will stop and the car will coast to a stop. A lucky motorist will only have the inconvenience of being stranded on the side of the road until the car can be towed to a repair facility to have the timing belt replaced. On the other hand, the engine might suffer severe, if not catastrophic, damage to its internal components.

            This potential disaster can be avoided easily and relatively inexpensively by replacing the timing belt within the required replacement interval.  Many domestic vehicles built within the last several years and the majority of imports are equipped with a timing belt. Other engines rely on a timing chain rather than a belt. You can call Colchin Automotive or refer to your owner’s manual to determine the mileage interval the timing belt should be replaced. The typical replacement interval for timing belts is every 60,000 to 90,000 miles.

            Timing belts resemble an engine accessory serpentine belt in appearance, only they typically have square teeth on the inside surface. They are usually constructed of rubber reinforced with nylon. The timing belt transfers the rotation of the crankshaft to the camshaft. The rotating camshaft activates the valves, which provide air and fuel to the cylinders and expel combustion gases to the exhaust system. The valves and pistons are constantly moving up and down at very high speeds. When the pistons are down, the valves are open; when the piston is at the top of its travel, the valves are closed. Some engines don’t allow clearance between a valve at its lowest point and a piston at its highest. The timing belt, therefore, is the critical link to ensure that these components do not collide. If collision occurs, damage to the valves, pistons, cylinder head and cylinder walls can result. This can be an expensive repair!