Infiniti 11720-4P102 Fan & Alternator Belt

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The drivebelts are located at the front of the engine, and it is imperative that they are in good condition and properly adjusted to ensure proper operation of the engine. With time drivebelts stretch, wear out due to their composition and high stress they work under, hence need to be inspected periodically. One belt powers the alternator as well as power steering while the other transmits force from the crankshaft to the air conditioning compressor. When the engine stops running, open its hood to locate drive belts at its front end. Examine each belt for different signs of wear-if any is found, replace it. Belt tension is determined by pushing on a belt at a point half-way between pulleys. Loosen a locking nut when it is necessary to adjust a belt then turn an adjusting bolt and measure the tension in a belt before repeating until a drivebelt is adjusted. To replace a belt, raise vehicle and secure it safely on jackstands, remove engine splash shield then proceed to recalibrate drivebelt by following recommended procedures. First remove power steering pump belt if there is need for replacing air conditioner compressor belt . It may be wise to replace both belts together and mark each one so that they fit into their respective grooves perfectly while ensuring that they are always aligned with correct pulleys. Take them with you when you go shopping so that you can compare them directly with others in terms of length width or design style. After fitting a new drivebelt ensure that it fits snugly into ribbed grooves on the pulleys and remains centrally placed. Adjust this/those belt(s) according to steps already given above.