A timing belt is an essential component of an internal combustion engine that is responsible for synchronizing the rotation of the engine’s crankshaft and camshaft. It is made of reinforced rubber and is toothed, with teeth that mesh with matching teeth on the crankshaft and camshaft sprockets. As the engine runs, the timing belt ensures that the camshaft opens and closes the engine’s valves at the correct time in relation to the position of the crankshaft. This synchronization is critical for proper engine operation, as it ensures that the valves open and close at the correct time for fuel combustion and exhaust gas expulsion.

A worn or damaged timing belt can cause serious engine damage, as the valves and pistons can collide if the timing is off. It is recommended to have the timing belt replaced at regular intervals as part of routine engine maintenance to prevent costly repairs and potential engine damage.

Timing belts have a limited service life. The service intervals for timing belts range from 60,000 miles to about 100,000 miles. Timing belts are required to be replaced if any of the following conditions occur:

• Meets or exceeds the vehicle manufacturer’s recommended timing belt service interval.
• The timing belt has been contaminated with coolant or engine oil.
• The timing belt has failed or is missing teeth.

The Baltimore mechanics at Hollenshade’s in Towson, MD, can address any of the questions you may have or problem you may be experiencing with your vehicle’s engine. Please CONTACT US for a timing belt repair appointment.