The links move on the toothed sprockets which are located on the ends of the crankshaft and camshaft and are responsible for opening and closing valves in the cylinder head and moving pistons and connecting rods in the combustion chamber.
Bmw chain tensioner symptoms.
Timing chain and guide failures are relatively common on some vehicles even at the 100 000 mile mark.
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Failing of a timing chain tensioner can occur slowly and if you do not catch it in time the slapping chain and lead to a number of engine related problems.
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Symptoms of a damaged bmw timing chain tensioner include a clatter that can be noticed after the motor starts up and that fluctuates according to the acceleration in the engine.
In other cases the timing chain system might be trouble free if engine oil specifications and change intervals are followed.
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