Timing belts connect the crankshaft (pistons) to the camshaft (valves). For the engine to work correctly, the valves must open and close at the right time. The timing belt has notches that fit into gears on the two shafts and keep them in time (synchronized with each other).

When the timing belt breaks on any car, the car will stop running. On many modern cars (for example all Volvos after 1995 and some before), the engine will be rendered useless if the belt breaks or if a supporting bearing or the water pump goes bad. Replacement intervals on these cars are critical. Time is important as well as mileage. The rule of thumb we use is to replace the timing belt at the manufacturer's suggested mileage or after 10 years, whichever comes first.

We suggest that you replace all the components connected with the timing belt system while you're at it-you don't need to have a component you neglected to replace fail before the next timing belt interval. At the very least, you'll have to pay the labor to do the job all over again. At the worst, you might have to replace the motor.

At the Model Garage, we'll try to remind you to replace the timing belt early enough to be safe. In the mean time, please call us if you need more information or advice about your particular car.