What Is a Timing Chain?
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A timing chain kit consisting of metal links runs along a set of gears to rotate the crankshaft and camshafts, and in coordination with the ignition, pistons regulate the opening and closing of the engine valves. Since the timing chain is installed inside the engine, its lubrication comes from engine oil, which is essential for its smooth operation. Despite their metallic composition, timing chains can wear, loosen or break due to stress.
Signs of Timing Chain Failure
A worn timing chain will show symptoms that indicate that the timing chain is not working properly. These signs include:
Rattles when starting the engine or idling
A common finding in vehicles with a bad timing chain is an unusual rattling noise when starting the engine or engaging the brakes. This occurs when a loose or stretched timing chain rattles and rattles as it spins while the engine is running.
engine stall
Since the timing chain opens and closes the engine valves at regular intervals, any damage can throw the air-fuel ratio out of balance and lead to a lack of power. It manifests as twitching movements and loss of acceleration.
contaminated oil
Another warning sign is finding metal fragments in the oil. Metal parts on a damaged timing chain can break off and fall into the oil. This finding must prompt the owner or mechanic to check the timing chain.
check engine light
Just like any other faulty part of the engine, a faulty timing chain will illuminate the check engine light. This is a warning to have your vehicle evaluated for potential engine problems, which could include a bad timing chain.
can't start the engine
This is a sign that the timing chain has finally broken. The vehicle will not start and may cause damage to other engine components.
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