What An Engine Timing Belt Does
An engine timing belt keeps the crankshaft and camshaft in the required relationship so the valves open and close at the right points in the engine cycle.
A-Premium offers timing belts for selected car and motorcycle applications. Choose the belt for the exact engine and vehicle: tooth count, width and belt profile must match the timing drive, and a matching tooth count alone is not enough.
Planning A Timing Belt Replacement
Accessing the timing drive may also expose the tensioner, idlers or water pump, depending on the engine. Their condition and the manufacturer's service instructions help determine what else to replace while the belt is accessible.
Check the package before ordering: a timing belt sold on its own does not imply that a tensioner, idlers or water pump are included. Correct shaft position, belt routing and tension are essential during installation.
Frequently Asked Questions (FAQ)
How is a timing belt different from a serpentine belt?
The timing belt synchronizes engine shafts, while a serpentine belt usually drives external accessories such as an alternator. Their locations, construction and service intervals can differ, so identify which belt the engine needs.
What happens if a timing belt fails on an interference engine?
The pistons and valves can contact one another when their timing is lost, potentially causing serious engine damage. Engine designs differ; one A-Premium belt listing identifies its application as an interference engine.
Do timing marks on a replacement belt set the engine timing automatically?
Marks on some belts help with alignment, but they do not replace the engine's timing procedure. Some listed belts have timing marks and others do not; use the specified shaft positions and any required locking tools for the engine.
Is a timing belt the same as a timing chain?
Both can synchronize the crankshaft and camshaft, but a belt and a chain are different drive designs with different components and service requirements. Order the type specified for the engine rather than treating them as interchangeable.
When should an engine timing belt be replaced?
Use the vehicle manufacturer's interval for the particular engine and consider both time and mileage where specified. Service history matters: if the last replacement is unknown, inspect the records and follow the manufacturer's guidance rather than relying on a universal mileage.
