Automotive Terms - V


Metal devices that open and close to allow fuel and air to enter the combustion chamber and exhaust gases to leave it. Operated from the camshaft by means of valve lifters, push rods, rocker arms, and overhead camshaft lobes, the valves can be adjusted with feeler gauges so that they open and close at the proper times. (These adjustments can’t be made to valves that are operated by valve lifters). See also exhaust valve, intake valve, timing belt, timing chain.

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