The job of a Timing Belt is to keep an engine’s cam shaft “in time” meaning that the engine’s intake and exhaust valve open at the correct moment of an engine’s rotation. If the intake valve opens too early, excessive combustion causes reduced power. As the name suggests, timing belts are heavy rubber belts with notches or cogs that turn the cam and crank shafts. Time, usage, and contamination from Antifreeze/C
oolant and/or lubricants cause Timing Belts to degrade over time, and manufacturers have stated replacement intervals that usually run from 60,000 to 105,000 miles. When timing belts are replaced, timing belt tensions should be replaced as well.
If the Water Pump is driven by the Timing Belt, which it
often is, the Water Pump should be replaced in conjunction with the Timing
Belt. If your Timing Belt fails, your
engine will stop. Worse, parts that are not supposed to collide may, and this
can result in extensive engine damage.
When you’re with the family in the middle of nowhere on a
Saturday night, it is no time to be breaking out the ol’ cell phone and
searching for “timing belt replacement near me.” Try to have all maintenance and repair
performed at a time and place of your choosing. It’s much more fun.

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