Definition of timing chain in English:

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timing chain

noun

A metal chain or reinforced rubber belt that drives the camshaft of an internal combustion engine. Also called timing belt.
Example sentences
  • The water pump was knackered by a poorly replaced timing chain (I think).
  • A timing belt or timing chain links the crankshaft to the camshaft so that the valves are in sync with the pistons.
  • No timing chains or belts needed here, just gears and shafts.
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