Timing is everything, and it’s time for a pop quiz. Engine timing is the relationship between the rotation of the crankshaft and camshaft which controls the movement of the valves and pistons. The valves and pistons must open at a precise time for the motor to function properly.
What is the difference between a timing belt and a timing chain?
A) Timing chains last longer than belts.
B) A timing chain makes more noise than a belt.
C) A timing belt should be replaced every 60k – 100k miles.
D) All of the above.
The main difference between a timing belt and chain is that a motor with a timing belt will need to be serviced a bit sooner than a timing chain. Since the belt is made of rubber it will wear out faster than a metal chain. The belt should be serviced every 60k – 100k along with a few other vital components.
A timing belt job should consist of changing the timing belt, tensioner, roller, water pump, and thermostat. The tensioner is usually the cause of a broken belt, we highly advise changing both belt and tensioner during a timing belt service. The coolant will also need to be replaced while servicing the water pump. We have a complete catalog of built to order, fully customizable, vehicle specific timing belt kits. If you’re not sure which kit is right for you, feel free to contact us.
Timing chains can be a gift and a curse. Although they tend to last longer than a timing belt they will eventually also need to be serviced. A timing chain failure can cause a lot more damage than a timing belt and can require a full engine transplant rather than just head work. A timing chain also uses tensioners however they are controlled by oil pressure compared to the tensioners on a timing belt.
A failing tensioner will eventually lead to a broken chain which would fall under the catastrophic engine failure category. If you own a vehicle with a timing chain and experience chain rattle on cold start we recommend performing a timing chain service. We offer fully customizable timing chain kits for Volkswagen and Audis. Feel free to contact us with any questions regarding our world famous timing chain kits.