12/7/2023 0 Comments Car timing belt book supplierRattling noises after starting and starting the engine.An error code may then be present that relates to incorrect timing between crankshaft and camshaft. The Engine Malfunction Light (MIL) may illuminate.Irregular running of the engine due to incorrect valve timing (the valves no longer open and close at the correct time).The following symptoms indicate a stretched timing chain: The operation of the oil pump with separate chain is described on the page lubrication system. The oil pump gear is driven by a separate oil pump chain. When the engine is running, the oil pressure in the chain tensioner will help push the chain tensioner against the guide bar with more force. The hydraulic chain tensioner contains a strong spring, which ensures that the chain remains tensioned even when the engine is switched off. There must be no play on the chain, otherwise it may chatter. The guide pivots around the hinge point at the bottom. The hydraulic chain tensioner presses the plastic chain guide against the timing chain. This is, of course, lubricated by motor oil. The chain slides along the plastic chain guide. The crankshaft sprocket drives the camshaft sprocket by means of the timing chain. The image below shows an engine with a single camshaft fitted with a timing chain. The tensioners that are used here often work on hydraulic pressure and spring force, so that the tension of the chain does not have to be checked regularly. A number of manufacturers have switched back to the chain after improvements in noise and friction. A timing chain is virtually maintenance-free, unlike a timing belt that has a replacement period.
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