The downside is that belts need to be replaced at specific mileage or time limits. Timing belts are quiet, their production costs are relatively less than chains and sprockets, and they are light and needs no lubrication to function. The upsides of chains were long life cycle, however the downsides were that they were noisy, had to be lubricated, and the materials used in their manufacture were expensive to produce and install.Įnter the timing belt. Now to all you guys from the 50’s and 60’s typically every engine had a timing chain.
Originally made of a band with metal clips this proved to be expensive and noisy, in 1945 Singer in conjunction with Uniroyal which is now Gates Inc. Surprisingly enough the original concept of the timing belt was for Singer sewing machines to synchronize the needle and bobbin drives. If that “timing” is off many times severe engine damage is the end result. The camshafts turn at exactly ½ of the speed of the crankshaft to time the valve operation to the piston operation.Įxactly what does this mean? It really as simple as this in order to complete the combustion sequence the valves must be opened or closed at the proper time in conjunction with the travel of the pistons. The most common question we as a service facility usually hear is what exactly is a timing belt? By definition a timing belt is a toothed belt that connects the camshaft or shafts to the crankshaft thus “timing”the top and bottom of the engine. One of the most misunderstood services on today’s vehicles is the maintenance and replacement of the timing belt. Tuesday, July 2nd, 2013 The Truth About Timing Belts
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