You might not be able to see it, but an accessory drive belt is always both speeding up and slowing down.
It is a good practice to replace a tensioner when replacing the belt. This video is sponsored by Continental.
These naturally aspirated, DOHC engines are found in Mustang GT, Mustang Boss 302 and F150 models.
Modern crankshaft position sensors measure more than the position of the crankshaft.
An automatic tensioner optimizes the belt tension in function and adapts to changes in the belt and engine characteristics. Engineers have designed two main systems to ensure optimal belt tension at all times. The first one is the “traditional” and most commonly used design, where a spring-loaded mechanical tensioner controls the belt tension.
Continental introduced 328 new part numbers to the North American automotive aftermarket during the fourth quarter of 2015, bringing the total for new part numbers in 2016 to 481. Included in the new offering of parts numbers are poly-V belts, timing belts, timing belt kits, hose and tensioners.