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Reference.org
Timing belt (camshaft)
open-in-new
<p>In a <a href="/facts/Piston_engine/ItLAxmW3">piston engine</a>, either a timing belt (also called a <i>cambelt</i>) or timing chain or set of timing gears is a perishable component used to synchronize the rotation of the <a href="/facts/Crankshaft/oYCe9nB3">crankshaft</a> and the <a href="/facts/Camshaft/qS8BWXVr">camshaft</a>. This synchronisation ensures that the engine's <a href="/facts/Poppet_valve/ADRB6Evc">valves</a> open and close at the correct times in relation to the position of the pistons. </p>